RB26 v. 2JZ swap?

[240knockout]

I just wanted to get an understanding of why a TOYOTA 2JZ engine is being swapped into a Nissan. I was under the impression that the RB26 engine was comparable in terms of performance and reliability.

Why go through the extra hassle of square peg in a round hole?


I am just not a fan of cross manufacturer swaps.....random thread, but interested in hearing out everyone's opinion.

[Pinggg]

2jz. parts are easier to source and deff a more reliable more motor. mounts and driveshafts you can get from get nuts labs for about $600

[bc.]

I just wanted to get an understanding of why a TOYOTA 2JZ engine is being swapped into a Nissan. I was under the impression that the RB26 engine was comparable in terms of performance and reliability.

Why go through the extra hassle of square peg in a round hole?


I am just not a fan of cross manufacturer swaps.....random thread, but interested in hearing out everyone's opinion.
Both engines are square pegs in round holes. Neither was made for a s-chassis.

[S14 Ender]

2JZ is easier to source parts for, RB26's are overpriced because LOL GTR plus you need to source an RB25 tranny or a z32 tranny with an adaptor. If you wanted to swap an inline 6 I think the 1JZ would be best price wise and still have a very powerful platform with room to grow.

[Gar9854]

Because there's an American veriant and you can find transmissions in junk yards.. And 1000hp stock internals might help the decision

[s14wannabe]

only nissan fan boys want the rb26. Everyone knows the 2jz's better in everyway. its a no brainer buddy!

[S14kouki_10]

2jz king swap

[rb25 run]

heap i think its better 2jz

[fliprayzin240sx]

US availability so you can go to Pep Boys and buy parts for it. Also the exhaust is on the opposite side so you dont have to worry about steering shaft clearance.

[Bmxer300zx]

2JZ is easier to source parts for, RB26's are overpriced because LOL GTR plus you need to source an RB25 tranny or a z32 tranny with an adaptor. If you wanted to swap an inline 6 I think the 1JZ would be best price wise and still have a very powerful platform with room to grow.

No adapter, you can use a rb26 bellhousing just either convert to pull style clutches like gtr or drill and tap holes to relocate clutch slave And use rb25 clutch
But still a pita non the less. both overpriced imo for a 300/400hp setup unless shooting for high numbers . Both very stout motors from factory

[slideslidegnarslide]

They are both rad motors. They are both reliable and with a good turbo will put down 450 all day and run for thousands of miles. So seriously do what you want. Every one just has a boner for the 1/2js right now.

[simmode1]

Additionally, ppl are learning how to run the 1/2JZ with the 350Z 6spd transmission. Which means you don't have to settle for the RB25's 5spd trans anymore.

[cbcm2435]

the rb26 has oiling system issues and cant hold as much power stock vs. a stock 2jz

[slideslidegnarslide]

I believe the oiling issues you speak of are due to the crank collar but if you buy the right 26 that issue is resolved.

[boniomario]

Both are amazing motors and really depends on what you are going for. Low revving torque monster 2JZ, high revving precision machine RB26. I can go into more detailed breakdown, however here is an overview.

A lot of people will say 2JZ is cheaper, however most of these people swap in a stock motor and call it a day. If you were to take two builds and put the same parts in part for part identical manufacturers, you will see that the cost is almost the same. Stock 2JZ is cheap to put in and yes it can handle a butt load of HP, however I've personally seen my own builders RB26 hit 800 BHP with stock internals. So this just shows that both motors are reliable. (source Tay's Dyno - 240SX RB26 RB26DETT 76MM 800WHP - YouTube (http://www.youtube.com/watch?v=B6nRtuTUz_k&feature=share&list=TLq3of4Qq3-X8))

Now the RB26 R32 version had crank snout problems and some oil restrictions, they were taken care of in later year models. The RB26 head is much better flowing than a 2JZ. RB26 is made to handle high RPM's and be used as a track engine.

2JZ is a perfect square motor at 3.0L so yes you get 0.4L of more displacement, hence more torque on lower end. The proper build cost will be the same as the RB26, the head of 2JZ is the constrictor.

Parts nowadays are easy to come by on the RB26 with globalization and easy shipping from everywhere. True you can pick up parts for the Supra from any auto store.

Like I stated earlier, it all comes down to preference of what you want.

[redline racer510]

2JZ is easier to source parts for, RB26's are overpriced because LOL GTR plus you need to source an RB25 tranny or a z32 tranny with an adaptor. If you wanted to swap an inline 6 I think the 1JZ would be best price wise and still have a very powerful platform with room to grow.

You dont need an adaptor plate, an rb25 tranny will bolt on and so will a z32 with the rb25 bellhousing. Wouldn't touch an rb26 unless it is from a r34 and for that you need major money, 2jz on the other hand are plentiful plus the N/A 2jz when turboed make more power because of the slightly higher compression and better flowing head design and for free-$600 It is the best band for the buck. Got a guy with a turbo N/A 2jz making over 600 and its daily driven with no problems at all.

[240knockout]

Nice....learned a thing or two here....thanks guys.

[racepar1]

Both engines are square pegs in round holes. Neither was made for a s-chassis.

Aaaannnnnnndddd THIS, boys and girls, is the moral of the story... An inline 6 does not fit well into an S-chasis, PERIOD.

1/2j vs rb, who really cares? There are hardcore fanboys on either side and both engines have their positives and negatives. I think you're all fucking morons for stuffing a 10ft long inline 6 into a 4 foot engine bay.

I also agree on the dislike of inter-manufacturer swaps. A Nissan should STAY a Nissan. About the only non-Nissan swap that I'm willing to even talk about is the LS1 swaps. Really though, with a Nissan there are a ton of engines to choose from, why use another manufacturer's engine? Now with a Mazda FD RX-7 or an E36 BMW there aren's so many choices so I would be much more willing to entertain the idea of swapping engines from other manufacturers...

[Bmxer300zx]

Aaaannnnnnndddd THIS, boys and girls, is the moral of the story... An inline 6 does not fit well into an S-chasis, PERIOD.

1/2j vs rb, who really cares? There are hardcore fanboys on either side and both engines have their positives and negatives. About the only non-Nissan swap that I'm willing to even talk about is the LS1 swaps..

Sorry had too do that!
I've always been a huge fan of all jdm motors but the past few months have been nothing but researching lsx/1 swaps and what these engines are capable of stock. I love the fact so many swap kits are being made for these motors and easier/cheaper to do, it is my next step.
Far as a 240sx i'd go with the 4cyl nowdays over 2jz/rb better weight distribution/less complex/300hp easy enough or if I really wanted the headache of a swap id go lsx...300hp N/A? Thank you. Did a rb25 in a s14.. pita, wasn't as bad as my TTZ though . . . Smh

[S14 Ender]

No adapter, you can use a rb26 bellhousing just either convert to pull style clutches like gtr or drill and tap holes to relocate clutch slave And use rb25 clutch
But still a pita non the less. both overpriced imo for a 300/400hp setup unless shooting for high numbers . Both very stout motors from factory
You dont need an adaptor plate, an rb25 tranny will bolt on and so will a z32 with the rb25 bellhousing. Wouldn't touch an rb26 unless it is from a r34 and for that you need major money, 2jz on the other hand are plentiful plus the N/A 2jz when turboed make more power because of the slightly higher compression and better flowing head design and for free-$600 It is the best band for the buck. Got a guy with a turbo N/A 2jz making over 600 and its daily driven with no problems at all.


Thanks guys, learn something new everyday. Been a while since I looked up those swaps, back when I was like 17 I wanted to put one in a 260z. Needless to say that never happened.

[brian310]

Aaaannnnnnndddd THIS, boys and girls, is the moral of the story... An inline 6 does not fit well into an S-chasis, PERIOD.

1/2j vs rb, who really cares? There are hardcore fanboys on either side and both engines have their positives and negatives. I think you're all fucking morons for stuffing a 10ft long inline 6 into a 4 foot engine bay.

I also agree on the dislike of inter-manufacturer swaps. A Nissan should STAY a Nissan. About the only non-Nissan swap that I'm willing to even talk about is the LS1 swaps.

:picardfp: :picardfp:

i think people are morons for putting american shit into a japanese car. and any person with a v8 is definitely a fanboy. get that nascar shit outta here

[racepar1]

:picardfp: :picardfp:

i think people are morons for putting american shit into a japanese car. and any person with a v8 is definitely a fanboy. get that nascar shit outta here

When you really look at the cost vs benefits it does make a LOT of sense. It's a lot cheaper, and a shitload more reliable, to put down 500hp with the LS1 than ANY other available engine.

So what if someone has a VH45 or VK56? Are they still fanboys? Nascar's don't run LS1's either so your connection is weak at best. You don't even have a clue what in the fucking hell you're talking about.

I do understand not liking the LS in a Nissan, becuase it's not a Nissan engine. The 1/2jz engines are not Nissan engines either so what in the world could possibly make that any better. Who gives a fuck what country the engine came from? If you're going to spout that purist attitude you should have the same amount of disdain for any engine from any other manufacturer.

You are the fanboy dude...

[brian310]

When you really look at the cost vs benefits it does make a LOT of sense. It's a lot cheaper, and a shitload more reliable, to put down 500hp with the LS1 than ANY other available engine.

So what if someone has a VH45 or VK56? Are they still fanboys? Nascar's don't run LS1's either so your connection is weak at best. You don't even have a clue what in the fucking hell you're talking about.

I do understand not liking the LS in a Nissan, becuase it's not a Nissan engine. The 1/2jz engines are not Nissan engines either so what in the world could possibly make that any better. Who gives a fuck what country the engine came from? If you're going to spout that purist attitude you should have the same amount of disdain for any engine from any other manufacturer.

You are the fanboy dude...

im doing a 1j swap in my coupe right now. its costing me alot less than a ls1 swap would be.. you have to have the right resources to stay budget friendly, right now my cost for my swap is 2k and i have everything i need lol.
and as far as the vk56 i wanted to do that swap in my first hatch ages ago but ended up selling the car. and yes im aware nascar doesnt run ls1's but im talking about american v8's in general. why put an american motor in a jdm car just drive a fucking foxbody. im not a nissan purist, im against american motors in jdm cars tho.

[racepar1]

im doing a 1j swap in my coupe right now. its costing me alot less than a ls1 swap would be.. you have to have the right resources to stay budget friendly, right now my cost for my swap is 2k and i have everything i need lol.
and as far as the vk56 i wanted to do that swap in my first hatch ages ago but ended up selling the car. and yes im aware nascar doesnt run ls1's but im talking about american v8's in general. why put an american motor in a jdm car just drive a fucking foxbody. im not a nissan purist, im against american motors in jdm cars tho.

Who gives a fuck what country the engine came from? What difference does that make?

Your retard 1jz swap is no better than an LS1. It's not a Nissan engine, it doesn't belong there just the same. As a matter of fact the LS1 would fit in the engine bay WAAAAAYYYYYYY better than your 10 foot long 1jz

You are a JDM fanboy, accept it. The country of origin of an engine only makes any difference to a JDM fanboy. A true purist would dislike your 1jz swap just as much. I personally HATE your 1jz swap. I think it's fucking stupid...

[QuickSpoolSR]

Who gives a fuck what country the engine came from? What difference does that make?

Your retard 1jz swap is no better than an LS1. It's not a Nissan engine, it doesn't belong there just the same. As a matter of fact the LS1 would fit in the engine bay WAAAAAYYYYYYY better than your 10 foot long 1jz

You are a JDM fanboy, accept it. The country of origin of an engine only makes any difference to a JDM fanboy. A true purist would dislike your 1jz swap just as much. I personally HATE your 1jz swap. I think it's fucking stupid...


LMAO :Owned:

[DenkiMan!]

as racepar1 said, v8's are usually lighter, cheaper depending on route you take (although most of the v8 builds i see cost an upwards of 3k), and make more power stock with less headache of turbo'd japanese motors. i started slowly making these realizations and theres not much you can do to get around it. BUT with all that being said, i still hate them lol, just a personal preference of mine. i'd prefer to have an rb25 because its my favorite motor and im beginning my search to find one. i am, however, starting to see the benefits of doing a 1/2j over a rb motor, especially for drifting since it beasts low end torque, parts are more readily available at general auto stores and the swaps been done a million times.

these motors were designed to take just as much abuse as v8's, imo its just rare you come across people who sit down and take the time/effort to force nothing less than 100% reliability out of them.

[PovertyDrifter]

This is my first post on his site but here goes.

Lets get real. You can take a KA24de and turn it into a beast with as much power as any Mild to highly modded RB26, and save an ass load of money.

Its all in what you want. The Rb26 and 1/2JZ's sound bad ass and have a cool factor to em.

People are going to swap what they think is cool. Period...:2c:

[brian310]

Who gives a fuck what country the engine came from? What difference does that make?

Your retard 1jz swap is no better than an LS1. It's not a Nissan engine, it doesn't belong there just the same. As a matter of fact the LS1 would fit in the engine bay WAAAAAYYYYYYY better than your 10 foot long 1jz

You are a JDM fanboy, accept it. The country of origin of an engine only makes any difference to a JDM fanboy. A true purist would dislike your 1jz swap just as much. I personally HATE your 1jz swap. I think it's fucking stupid...

i own a Japanese car why would i want a shitty american motor... ls motors are shit just like everything from america. call me a jdm fanboy if you please but ill stick to my motors from japland. :wavey: oh and i OWNED a v8 s14, AND IT SUCKED.sold it to build this coupe.

[PeaceOnesxWai]

If the person going to swap RB or JZ it wouldnt really matter to them about being a purist as horsepower is their main priority.. But considering the availability of LS swap parts, OEM parts, reliability, weight, power, you living in Murica!! it makes more sense to drop a LS motor over the two. RB and JZ motors are really last decade craze... both have more issues/down falls when dropped into a S-Chassis.

[PeaceOnesxWai]

This is my first post on his site but here goes.

Lets get real. You can take a KA24de and turn it into a beast with as much power as any Mild to highly modded RB26, and save an ass load of money.

Its all in what you want. The Rb26 and 1/2JZ's sound bad ass and have a cool factor to em.

People are going to swap what they think is cool. Period...:2c:


Uh... NO. A KA would need sleeves, pistons, rods, manifold, turbo ETC compared to a RB with larger turbo/turbos to make 600hp.. Not cost effective.

KA should not be in this topic of making ponies

[supersayianjim]

i have a lexus sc400 with a 1jz 5spd swap.

i have a 89 s13 with a rb20-25 swap.

i have like both engines,hence why i have them both. oiling issues aside. you have to do a Fair! COMPARISON

the rb25 vs the 1jz 2.5 vs 2.5

if you want to compare something to the 2jz you need to compare the rb30. then you have a even steven comparison!!

[PovertyDrifter]

Uh... NO. A KA would need sleeves, pistons, rods, manifold, turbo ETC compared to a RB with larger turbo/turbos to make 600hp.. Not cost effective.

KA should not be in this topic of making ponies

If you where to swap a stock 26 into an s chassis it would cost $5000 plus. Tell me you couldn't build a KA for that and have 500 plus?

[DenkiMan!]

hahaha yea the highest power output ive known any ka to make was around like 850hp or something

EDIT:
and here it is, first link on google

www.ka-t.org • View topic - 844rwp ka24de (http://www.ka-t.org/forums/viewtopic.php?t=43826&sid=c5f89aad1e6c464628212f371813b1c9)

[madserv]

I prefer building sr20det motor in silvia rather then doing 1j.2j or lsd swps. . a build sr20det can be beast aswell.

[PeaceOnesxWai]

The amount of work and labor to make a KA 600+ would surpass the amount equivalent to a RB swap.

The KAT built above has well over 15K into the build.. thats without the labor done to the motor. Also.. honestly... KAs look ugly as FUKC

[PovertyDrifter]

The amount of work and labor to make a KA 600+ would surpass the amount equivalent to a RB swap.

The KAT built above has well over 15K into the build.. thats without the labor done to the motor. Also.. honestly... KAs look ugly as FUKC

You might want to do some research before you post. An RB26 comes stock with 276hp.

Just the rb26 motor and rb25 trans alone is 4-5k. Then you need mounts, aftermarket drive shaft, front mount with piping, labor ect. blah blah blah we all know the story.

As far as ugly as fuck goes. It just proves my point. Its a cool factor

[Bmxer300zx]

I'm with poverty drifter ^
A rb26 is an amazing motor stock but still requires money to swap let alone mod. Just mounts, shaft, oilpan or mod it, trans and engine are about 4k depending on you purchasing.
There are threads that exists that show you how to use a gtr transmission by hacking off the transfer case and making a plate to to cover and other b.s todo so. Some have done it so its cheaper. Than still need money to bring the motor to 600hp.

Far as a KA goes your talking about a $200 motor for the price of a rb26 the rods, piston and heads could be built. After that its a turbo kit, fuel and ems.

[Bmxer300zx]

i own a Japanese car why would i want a shitty american motor... ls motors are shit just like everything from america. call me a jdm fanboy if you please but ill stick to my motors from japland. :wavey: oh and i OWNED a v8 s14, AND IT SUCKED.sold it to build this coupe.

Hahah ya really? a $300 junkyard 4.8 lsx can make over 300whp on a $200 cam off craigslist and tune haha. They've pushed these motors past 1k hp on stock short blocks lol. Lets not even get to the bigger brothers for about $200 more. Terrible motors
Will say the price of a t56 is what kills the money vs power . If they where as cheap as a z32 or 350z trans would be no comparison of power for price lmao.

[PeaceOnesxWai]

:picardfp:fanboys... So you guys will build a KA that is going to push 600 but leave the drivetrain stock. Are you people talking out of your ass or is it only about the power figures. The driveability has no factor?

Face it.. the KA is garbage truck motor. How many people can you name that has passed 600hp KA?? if you do, ask them what issues they face when they hit those goals.. you guys talk like 600hp can be easily achieved with a big T4 turbo.

Dont bring in your KA crap in a discussion, KA is an unworth level compared to RB/2JZ

[Bmxer300zx]

:picardfp:fanboys... So you guys will build a KA that is going to push 600 but leave the drivetrain stock. Are you people talking out of your ass or is it only about the power figures. The driveability has no factor?

Face it.. the KA is garbage truck motor. How many people can you name that has passed 600hp KA?? if you do, ask them what issues they face when they hit those goals.. you guys talk like 600hp can be easily achieved with a big T4 turbo.

Dont bring in your KA crap in a discussion, KA is an unworth level compared to RB/2JZ

Ka trans bolts to a rb block minus 1 bolt that can be drilled over an 1/8th to fit lol. So in reality a z32 trans could be mated to a ka24 for the price of a precious maxworks kit lol. Z32 trans $200 all day, seen even rb26 trans at jdmengine depot mid winter for $300 use the rb26 bellhousing same as a trans setup for the rb26.
Or buy a rb26 transmission and modify it to rwd and use that
Building drivetrains bullet proof will cost regardless of what fanboy engine you go with. My point was a ka24 could be built for the price of a rb26 swap. Far as 500hp+ ka's theres plenty out there pull the head outa ur ass. Most choose otherwise though.

If your looking for 5/600hp+ jz or rb forsure like I said most people swap em stock then move on, its a pricey swap for 3/400hp imo.

[waxball88]

Uh... NO. A KA would need sleeves, pistons, rods, manifold, turbo ETC compared to a RB with larger turbo/turbos to make 600hp.. Not cost effective.

KA should not be in this topic of making ponies
IRON BLOCK NEEDS SLEEVES!? Well fuck guess im selling my ka
:Ownedd:
manifold turbo etc...Wouldnt you need all those to make 600 on an rb?

[Matej]

Hahah ya really? a $300 junkyard 4.8 lsx can make over 300whp on a $200 cam off craigslist and tune haha. They've pushed these motors past 1k hp on stock short blocks lol. Lets not even get to the bigger brothers for about $200 more. Terrible motors
Will say the price of a t56 is what kills the money vs power . If they where as cheap as a z32 or 350z trans would be no comparison of power for price lmao.
There is no way to do a proper LSx swap for under 10K$.

[redline racer510]

Lets get back to the subject at hand. OP I don't think you know what you are doing and I doubt you have enough money to do either swap. The mere fact you asked such a broad question without doing any kind of research just shows you're mediocre understanding of basic mechanics and decision making skills. I am expecting a well thought out rebuttal that probably took you 15 minutes or so to type so you can save face and not make a fool of your self on this forum, or so you will try. I am not trying to be an ass but you need to do a lot of reading because there are numerous source regarding this topic if you made the same effort on Google rather than making this thread. If there is something that needs more clarification by all means make a thread but dont ask these very broad questions such as I.E. "which is better a sr or ka", "how much horsepower will this make". We all go through this phase but learning to do your own research is extremely rewarding and may give better insight on things rather than having someone explain it to you.
CHEERS

[Bmxer300zx]

Lol this went from a 1jz vs rb debate to crazy ness haha.

[Bmxer300zx]

There is no way to do a proper LSx swap for under 10K$.

That comment was directed towards it being a shitty motor........
Also I've seen Vortec swaps for far under 10k in fords and other cars not just s-chassis. Some hitting 600hp turbo'd Others all out N/A.
Whats your term of "proper" lol
For that matter a friend did a LT1 t56 rx7 with p.s and a.c for 7k. The motor was cleaned and prepped at a shop and he used forged rods and pistons, metal headgasket and electronic water pump, Full exhaust from headers back lol. Even had a turboii rear in it.

[PovertyDrifter]

:picardfp:fanboys... So you guys will build a KA that is going to push 600 but leave the drivetrain stock. Are you people talking out of your ass or is it only about the power figures. The driveability has no factor?

Face it.. the KA is garbage truck motor. How many people can you name that has passed 600hp KA?? if you do, ask them what issues they face when they hit those goals.. you guys talk like 600hp can be easily achieved with a big T4 turbo.

Dont bring in your KA crap in a discussion, KA is an unworth level compared to RB/2JZ

First of the engine is part of the drive train, and most people who do a bigger swap leave the trans and axle alone because they are readily available or wait to blow it up and swap something better (saw it done a million times).

Second I was not trying to say the KA was the optimum motor, I was making a point... You can make the stock motor as reliable as any other swap.

The OP wanted a reason why people would swap a 2jz or RB26?

Answer: Its a cool factor

[!Zar!]

Blah blah blah.

2jz is better.

[fliprayzin240sx]

God, why the fuck are you guys comparing KA-Ts to I-6 turbo engines. Power delivery between the 2 is completely different. So what the fuck is the point of having a 500hp KA-T when you dont see the power till closer 4.5k-5k? I-6 will give you the torque and power alot sooner than that and at 500hp, 1JZ/2JZ and RB25/26s are barely breaking a sweat.

[blueshark123]

im doing a 1j swap in my coupe right now. its costing me alot less than a ls1 swap would be.. you have to have the right resources to stay budget friendly, right now my cost for my swap is 2k and i have everything i need lol.
and as far as the vk56 i wanted to do that swap in my first hatch ages ago but ended up selling the car. and yes im aware nascar doesnt run ls1's but im talking about american v8's in general. why put an american motor in a jdm car just drive a fucking foxbody. im not a nissan purist, im against american motors in jdm cars tho.


You want to talk budget friendly. I bought a crashed ws6 trans am for 3200 got a free swap with 1k extra. I sold my sr setup and that funded all of my sikky kit etc. I did the wiring which is so fucking easy.

So in the end I made money got more relaible power and The best part I knew that motor ran and exact miles, so i knew it was more reliable then a pos pull out from japan with god knows miles.

My swap is properly done, down to the last bolt. If u know how to do all the work yourself and be smart you can get this swap for cheap. I could have even done my own mounts but i decided against it cause of time.

Also 2jz> rb26

[PovertyDrifter]

God, why the fuck are you guys comparing KA-Ts to I-6 turbo engines. Power delivery between the 2 is completely different. So what the fuck is the point of having a 500hp KA-T when you dont see the power till closer 4.5k-5k? I-6 will give you the torque and power alot sooner than that and at 500hp, 1JZ/2JZ and RB25/26s are barely breaking a sweat.

You need to read the whole thread so you dont make an ass out of your self:D

[fliprayzin240sx]

You need to read the whole thread so you dont make an ass out of your self:D

I don't need to do that since you're doing an excellent job of making an ass of yourself. You really comparing a built KA to modded out RB26s? KAs are great engines for people who can rebuild and tune it themselves. KA-Ts on the hands of your typical S-chassis owners nowadays will last a month since most of them think they can slap a T3/T4 50 trim turbo on their stock 190K mileaged KAs and tune it with a SAFC.

I don't hate KA-Ts, I'm just not a big fan of pushing 4 cylinder engines over 450-500hp. Sure you can push them to more than that but without the right tuner, you can kiss that engine bubybe. Margin of error is less on 4 cylinders compared to an engine with more cylinder since the load is spread out more.

I'm coming from having a 500whp GT3582R equipped SR21 and switched over to a 420whp RB25'd S14. I should have done this swap alot sooner, I6s just sound better and has better power delivery since the power/torque is on sooner. Does that make me a fanboy since I've experience both and prefer my RB25? Do I love this setup? I like the power delivery but it's not perfect. The hindsight any I6 swap is the hefty weight. Make the whole car feel too nose heavy in my case, after using Mckinney mounts. I dont remember them feeling like this in Japan using stock R32/33 crossmember and mounts.

PS: RB26s does not put down 276hp at the crank. Nissan short changed their rating to conform with the gentlemen's agreement between manufacturers to keep it to less than 280. Its not uncommon for a stock RB26 in RWD configuration to put down 310-330whp. Same thing with the 2JZ, Supra's were putting down 300whp.

[Berho615]

Really depends on what you want. 2jz with the 6- speed gear tag tranny is unstoppable.

[Matej]

Do a radical 4AG.

[PovertyDrifter]

I don't need to do that since you're doing an excellent job of making an ass of yourself. You really comparing a built KA to modded out RB26s? KAs are great engines for people who can rebuild and tune it themselves. KA-Ts on the hands of your typical S-chassis owners nowadays will last a month since most of them think they can slap a T3/T4 50 trim turbo on their stock 190K mileaged KAs and tune it with a SAFC.

I don't hate KA-Ts, I'm just not a big fan of pushing 4 cylinder engines over 450-500hp. Sure you can push them to more than that but without the right tuner, you can kiss that engine bubybe. Margin of error is less on 4 cylinders compared to an engine with more cylinder since the load is spread out more.

I'm coming from having a 500whp GT3582R equipped SR21 and switched over to a 420whp RB25'd S14. I should have done this swap alot sooner, I6s just sound better and has better power delivery since the power/torque is on sooner. Does that make me a fanboy since I've experience both and prefer my RB25? Do I love this setup? I like the power delivery but it's not perfect. The hindsight any I6 swap is the hefty weight. Make the whole car feel too nose heavy in my case, after using Mckinney mounts. I dont remember them feeling like this in Japan using stock R32/33 crossmember and mounts.

PS: RB26s does not put down 276hp at the crank. Nissan short changed their rating to conform with the gentlemen's agreement between manufacturers to keep it to less than 280. Its not uncommon for a stock RB26 in RWD configuration to put down 310-330whp. Same thing with the 2JZ, Supra's were putting down 300whp.

No I was not comparing a "MODDED OUT RB to a KA" Read the whole thread, and how I have reiterated my point over and over.

I also said I know the KA-t is not the best (Optimum) engine either. I was making a point about the OP's Question.

Then the Guys on here who think there hard core and have no clue chimed in.

Yes you can take an RB26 or 2JZ to 1200hp, but you will pay for it big time, that was not my understanding of the conversation.

Trust me I would take an RB over a KA-t any day, but Its not Pertinent for the majority of what guys are doing with the s-chassis. I bet half or more of the guys who own a 240 are posers anyway.

One of my good freind's has an R33 GTS 4 he blew up on a road course last year, and has since spent over 10k on the engine itself.

Anyway, sounds like you have experience with both sides and I always like a good debate, but make sure you look at the whole picture.

[PovertyDrifter]

Also I could care less about the "FAN BOY" comment most guys reply with. If where not fans of Nissan we wouldn't be on this site. The guys who make those comments are bashing Nissan in my opinion.

[!Zar!]

Why the fuck are you talking about a ka-t?

The thread title is rb26 vs 2jz.

[PovertyDrifter]

Why the fuck are you talking about a ka-t?

The thread title is rb26 vs 2jz.

Why the fuck are you guys so ignorant? Pay attention to my point.

I was giving an example of why people decide to go with one or the other. Read my previous posts.

I know all of you guys can't be that dumb, or are you?

[Goofs]

The 1/2JZ is clearly the better engine. And to the guy a page back stating LSx's are the best engines to swap into S-chassis is an idiot. American crap v8's don't belong in Japanese cars. Am I fanboy, probably. However, I would rather have a boosted 4 cylinder or i6 making super cool noises and being pushed to its limits, then to hear a v8 thats being pussy footed because its spinning tires at 3k RPM

[Hatchguy]

http://i926.photobucket.com/albums/ad102/wayneLAX/tb538ea_Boy-that-escalated-quickly.jpg (http://media.photobucket.com/user/wayneLAX/media/tb538ea_Boy-that-escalated-quickly.jpg.html)

[TrueFreshness]

2JZ. Cheaper to build, parts more readily available, and has proven to be able to hold 700-800 on the stock internals.

[mantas]

Typical drama on zilvia. Never gets old, especially when fan boys think they know wtf they are talking about and get schooled by og members.

[PovertyDrifter]

Typical drama on zilvia. Never gets old, especially when fan boys think they know wtf they are talking about and get schooled by og members.

^^^^:snoop: Care to define fan boy? :goyou:

[!Zar!]

I know all of you guys can't be that dumb, or are you?
OP asks about an RB vs a JZ. You come in talking about something completely unrelated. So who's the dumb one?

I would rather have a 1/2j over a ka-t.

The 1/2JZ is clearly the better engine. And to the guy a page back stating LSx's are the best engines to swap into S-chassis is an idiot. American crap v8's don't belong in Japanese cars. Am I fanboy, probably. However, I would rather have a boosted 4 cylinder or i6 making super cool noises and being pushed to its limits, then to hear a v8 thats being pussy footed because its spinning tires at 3k RPM

So you're calling him an idiot because you feel putting an LSx in to an S-chassis is wrong?

[Goofs]

So you're calling him an idiot because you feel putting an LSx in to an S-chassis is wrong?

No not because I feel it wrong because IT IS wrong

[fatduece]

Yall need to stop arguing. We need to talk about the real issues, like the whole v8 swap into an import. This sh8ts destroying the whole scene. Its not about having the biggest motor, its about having pride in a Japanese car with a small motor. Take your time and build something special that can hang with domestic cars. That's what it used to be about....now its all gone to sh8t. If you like bigger motors then fine, but dont buy an import just to stick something in there. Buy your rustang or trannyam. God.....I blame formula D.














P.S. Money should not be a factor. If it is, then you're simply in the wrong scene.

[PovertyDrifter]

OP asks about an RB vs a JZ. You come in talking about something completely unrelated. So who's the dumb one?

I would rather have a 1/2j over a ka-t.


It was an example, how hard is that to comprehend???

Can I break it down for you any more?

[PovertyDrifter]

This is my first post on his site but here goes.

Lets get real. You can take a KA24de and turn it into a beast with as much power as any Mild to highly modded RB26, and save an ass load of money.

Its all in what you want. The Rb26 and 1/2JZ's sound bad ass and have a cool factor to em.

People are going to swap what they think is cool. Period...:2c:

Example for everyone who has a hard time understanding. READ THE LAST 3 SENTENCES OF THIS POST.

[Bmxer300zx]

The 1/2JZ is clearly the better engine. And to the guy a page back stating LSx's are the best engines to swap into S-chassis is an idiot. American crap v8's don't belong in Japanese cars. Am I fanboy, probably. However, I would rather have a boosted 4 cylinder or i6 making super cool noises and being pushed to its limits, then to hear a v8 thats being pussy footed because its spinning tires at 3k RPM

Who said they where the best? You clearly didn't read much. Been around/had/worked on sr's, rb's , ka-t's, jz's and even vg30dett. All awesome engines choosing a power level and a budget is key. Any one who chooses a rb26 or 2jz just for 3/400hp is spending more money than the guy with a sr or ka. Building 400+ and want a high screaming rev from factory ya why not a rb or jz, depends on what you wana do also track, drag, drift, daily fun or w.e.
But If your concern is low rpm powerband why waste time with any of them when you can be pussy footing a lsx at low 3k? REAL answer .. personal preference.
Also a built Turbo LS sounds amazing at 8k.

My real opinion? do what the fuck you want and don't give a fuck what anyone says. I'm all about cross breeding engines and chassis, parts from one car to another, fabricating creative custom ideas. To many good engines to choose and platforms to build off of, It's what keep the car scene interesting.

[simmode1]

Sooo basically... we all got suckered into another shitty 'Which engine" thread?

Both are amazing motors and really depends on what you are going for. Low revving torque monster 2JZ, high revving precision machine RB26. I can go into more detailed breakdown, however here is an overview.

A lot of people will say 2JZ is cheaper, however most of these people swap in a stock motor and call it a day. If you were to take two builds and put the same parts in part for part identical manufacturers, you will see that the cost is almost the same. Stock 2JZ is cheap to put in and yes it can handle a butt load of HP, however I've personally seen my own builders RB26 hit 800 BHP with stock internals. So this just shows that both motors are reliable. (source Tay's Dyno - 240SX RB26 RB26DETT 76MM 800WHP - YouTube (http://www.youtube.com/watch?v=B6nRtuTUz_k&feature=share&list=TLq3of4Qq3-X8))

Now the RB26 R32 version had crank snout problems and some oil restrictions, they were taken care of in later year models. The RB26 head is much better flowing than a 2JZ. RB26 is made to handle high RPM's and be used as a track engine.

2JZ is a perfect square motor at 3.0L so yes you get 0.4L of more displacement, hence more torque on lower end. The proper build cost will be the same as the RB26, the head of 2JZ is the constrictor.

Parts nowadays are easy to come by on the RB26 with globalization and easy shipping from everywhere. True you can pick up parts for the Supra from any auto store.

Like I stated earlier, it all comes down to preference of what you want.
Ah ha! A local! Yessir! Tay is a frikken Nissan genius in my book. Dude seriously knows his shit. He repping down here in Texas. I was wondering if he would ever want to build an RB30DE-T, but with the results his RB26 has put out, what's the point?

[Bmxer300zx]

Yall need to stop arguing. We need to talk about the real issues, like the whole v8 swap into an import. This sh8ts destroying the whole scene. Its not about having the biggest motor, its about having pride in a Japanese car with a small motor. Take your time and build something special that can hang with domestic cars. That's what it used to be about....now its all gone to sh8t. If you like bigger motors then fine, but dont buy an import just to stick something in there. Buy your rustang or trannyam. God.....I blame formula D.














P.S. Money should not be a factor. If it is, then you're simply in the wrong scene.

What scene? If cars is about one scene then you must be refering to the #jdm#hellaflush#bellyscraperclub. There's worse things to sink thousands of dollhairs into than a murica motor into a light weight, nimble, irs car. Called 6k worth of parts to drag your muffler on the ground. But guess what .... their choice.

P.S. if you can build a car that runs 10's for less than 10k from Choosing wisely vs a guy who spent 20k poorly and runs 10's who made out better? Money is always a factor

[ocn]

Yall need to stop arguing. We need to talk about the real issues, like the whole v8 swap into an import. This sh8ts destroying the whole scene. Its not about having the biggest motor, its about having pride in a Japanese car with a small motor. Take your time and build something special that can hang with domestic cars. That's what it used to be about....now its all gone to sh8t. If you like bigger motors then fine, but dont buy an import just to stick something in there. Buy your rustang or trannyam. God.....I blame formula D.

P.S. Money should not be a factor. If it is, then you're simply in the wrong scene.

this is the dumbest shit i have read so far.. what scene are you talking about? your local high school car meet at a Walmart with all the dumb ass civics? or the drift scene? because as far as drifting goes the engine doesn't matter as long as it puts down the power you need for your style of drifting and cost effectiveness.. if your cant wait and pay for the down time of having your SR,RB,CA down then people go with V8's because i can go to the store buy the parts and be running again the same day and as for your stupid ass PS comment .. drifting is for everyone money is a factor for alot of people who dont have there mom and dads credit car to buy and do whatever the hell they want.. you sir are one of the people fucking up the so called "Scene" by not keeping shit fun. We as Automotive Enthusiast should be able to do whatever the hell we want with the car i paid for..which is why i have a fuck your opinion out look, if some one doesn't like it oh fucking well not your money and your not driving it.

[240knockout]

WTF? Dude get off your high horse. You have no idea who I am, what I know and most importantly what my balance sheet looks like. I sparked a conversation on a forum. Stay out of my thread if it bothers you so much.

:wackit:

Lets get back to the subject at hand. OP I don't think you know what you are doing and I doubt you have enough money to do either swap. The mere fact you asked such a broad question without doing any kind of research just shows you're mediocre understanding of basic mechanics and decision making skills. I am expecting a well thought out rebuttal that probably took you 15 minutes or so to type so you can save face and not make a fool of your self on this forum, or so you will try. I am not trying to be an ass but you need to do a lot of reading because there are numerous source regarding this topic if you made the same effort on Google rather than making this thread. If there is something that needs more clarification by all means make a thread but dont ask these very broad questions such as I.E. "which is better a sr or ka", "how much horsepower will this make". We all go through this phase but learning to do your own research is extremely rewarding and may give better insight on things rather than having someone explain it to you.
CHEERS

[ocn]

Nvm..Mslength

[240knockout]

2JZ. Cheaper to build, parts more readily available, and has proven to be able to hold 700-800 on the stock internals.


Amongst all the responses....this seems to sum up the pros for the 2JZ. I honestly never took the USDM parts availability as a factor (big plus). In the end though....I refuse to pop open a hood and have to explain why I have a Toyota engine in a Nissan. I will keep my 240sx SR20det and prob move onto a new platform for my next build.

I have 2 in mind...one full American....1970 Nova or a 1968 Chevelle with an LSx swap....and another JDM monster which WAS going to be a 98 240sx with RB26, but upon reading all these responses (on a Nissan forum) I am going to go with a 97 Lexus SC300.

[Bmxer300zx]

Lexus route would be cool I have a buddy with a sc400 kitted and on gram light 57d titaniums For the daily ballerness and a 99 t56 trans am for his "fun" car lol.
If you go sc300 try and get a 5spd one buy a 1jzgte ($900 auto trans) and build a 1.5jz outa the 1j heads and 3.0 2j block. The 1jz head is better it's a very common thing.
Serial nines cressida had a stock na 2jz block make somewhere round over 400hp and tq (obvious turbo/fuel/management). May need to locate a r154 the w58 is as strong as a ka24 transmission haha.

[!Zar!]

Stock r154's aren't as awesome as people make them out to be.

Though the martin crawler upgrade kit does help quite a bit.

[d_nice]

interesting tread.

[Bmxer300zx]

Stock r154's aren't as awesome as people make them out to be.

Though the martin crawler upgrade kit does help quite a bit.

No they are not considering the age some are and condition and still ask near t56 prices for them. Luckily Z trans are becoming a bolt on option due to bellhousing adapters now. Still seen a few threads with guys trying to get the z33 trans into is300's and others and not possible without cutting the tunnel up from what I see.

[mantas]

^^^^:snoop: Care to define fan boy? :goyou:

It would take too much time out of my day, i would be better off writing a book on the subject hahaha.

[PovertyDrifter]

It would take too much time out of my day, i would be better off writing a book on the subject hahaha.

Pretty amazing my 2 year old has more respect for people than the majority of the people I have come across on this site so far. I thought this would be a cool place to chat with like minded people, but this place is filled with disrespectfull, rude, imature people.

[blueshark123]

Pretty amazing my 2 year old has more respect for people than the majority of the people I have come across on this site so far. I thought this would be a cool place to chat with like minded people, but this place is filled with disrespectfull, rude, imature people.


Welcome to Zilvia.:-/

[Cheesy Doriftos]

zilvia isn't zilvia without disrespectful, rude, immature people. that's why i like the tuna here :)

[dallaceseiuli]

ugh.... and im over here doing little boy things with a ka24e. spending more on a smaller heavier worse flowing pos.

[dallaceseiuli]

and i have an ls1 sitting in my garage that im not ready for

[kamilitaryman]

e-peen swap fight! Both motors suck. You haven't driven a car until you've driven one with a caterpillar swap! bitches...

[racepar1]

i own a Japanese car why would i want a shitty american motor... ls motors are shit just like everything from america. call me a jdm fanboy if you please but ill stick to my motors from japland. :wavey: oh and i OWNED a v8 s14, AND IT SUCKED.sold it to build this coupe.

Swapping a GM engine is no more or less wrong than swapping a Toyota engine. You seem to have COMPLETELY missed my point. I'm not arguing that the OP SHOULD swap in an LS engine. I'm arguing that the country of origin of the engine should not be an issue. If you're a purist you want your Nissan to stay a Nissan. If you're not you swap in whatever tickles your fancy. What engine that is doesn't matter.

I am a fan of fast cars, PERIOD. I don't care what country the car came from as long as it looks good and is fast. I am an AUTOMOTIVE ENTHUSIAST. This fanboy "JDM is the illest" BS is just fucking childish. The Japanese aren't even historically very successful in international motorsports competition. Europe and the US DOMINATE racing globally.

Oh, and I'm NOT swapping an LS1 into my car. I'm leaning more towards the purist/classic side at the moment...

There is no way to do a proper LSx swap for under 10K$.

This is NOT true. You can do it for far less than that. It is by no means cheap, I would estimate $5k-$7k for an average engine in the car and running. If you're swapping in an LS6 or some shit then obviously it's going to cost more.

No not because I feel it wrong because IT IS wrong

That is simply your opinion. IMO swapping a 1/2j is more wrong than the LS1. This is because there are Nissan options that closely match the performance of those engines for a comparable price tag. The same cannot be said for the GM LS engines...


I fucking HATE 1/2j swaps in 240's, really I HATE any non-nissan Japanese engines in 240's.

[DiceDealer]

im surprised that I haven't seen any1 bring up a VQ swap into a 240 yet. (and yes I've seen it)

in all fairness; if ur gonna swap a different engine (whether it be an RB, SR, 2J, LS, VQ) or turbo your KA, it shouldn't matter what other ppl think. different strokes for different folks...

as long as your building something and not just going out and buying an evo or sti and calling yourself a "tuner" when you slap on a domo sticker, your cool with me.

[silviaks2nr]

2jz/RB? What about 1fz.... ;)

http://philscarblog.files.wordpress.com/2009/09/img1647800x600.jpg

http://www.youtube.com/watch?v=RCUwIsSf5UQ

Nissan can also answer with the tb48de

http://i26.photobucket.com/albums/c105/FOOTZ_001/G351.jpg

[racepar1]

^^^That turbo on the Supra is comically huge. It looks like a JDM Rat Fink cartoon or something!

[silviaks2nr]

This is worth the read, just for WTF factor

2005 Infiniti G35 - G52 Bomber - Super Street Magazine (http://www.superstreetonline.com/features/sstp_1203_2005_infiniti_g35/viewall.html)

[mantas]

In the end it all comes down to what your goals are with a particular car. If there is no thought process behind doing a swap then you might as well swap in a 1.3hp lawn mower engine.

[rb25 run]

wow man its too big turbo well done ..

[Bmxer300zx]

I will say imo the TB48de is king of the i6's, that g35 is nasty pretty sure it's bored to a 5.2 liter as well that's the displacement of x2 rb26's lmao. Think it has 1800hp and 2200ftbs Sure the price tag was fun though lol.