RB20 in S14

[turboeic]

Hi I was wondering what would be needed to install a RB20 into a S14? I have searched and most of the stuff that I found would be into an S13. Would it be around the same thing? What differences are their? And I read that you have to get SOHC PS lines. Wat about for the DOHC and I still need the mounts and crossmember. Anything else besides replacement parts? Thanks

[MadScientist]

not to bust your bubble... but doing RB20 really is pointless... you would be better off with a CA18 and thats not saying much eather.

Mods for RB20 is nearly impossable to source, just like CA18s they are being dropped by most manufatures. RB25 and RB26 share some qualities and manufactures have extended their lines to suit both. Consider your options for aftermarket parts and availablity when choosing an engine... and not just because its a cheep alternative.

Brain fart* I forgot the name of the company that does the engine mounts for the RB swap.

Peace
Drew

[intel]

mckinney? as one of them?

[turboeic]

Ok I got the mounts but would I have to bend the PS lines? And is there anything else I should look for?

[turboeic]

not to bust your bubble... but doing RB20 really is pointless... you would be better off with a CA18 and thats not saying much eather.

Mods for RB20 is nearly impossable to source, just like CA18s they are being dropped by most manufatures. RB25 and RB26 share some qualities and manufactures have extended their lines to suit both. Consider your options for aftermarket parts and availablity when choosing an engine... and not just because its a cheep alternative.

Brain fart* I forgot the name of the company that does the engine mounts for the RB swap.

Peace
Drew
Thanks but I've been thinking of getting one for a while. And I really don't care too much for aftermarket support. I really don't plan on pushing this thing too crazy right now. I just got tired of KA's because I just threw a rod on my second one so right now I'm just thinking something different.

[Komatsu X]

. I Had A Fully Built Rb20det... So If You Need Rb20det I Can Get Whatever You Need.

Pistons
Rods
Intake Mani
Exhaust Mani
Cams
Cam Gears
Coil Packs
Light Flywheel
Clutchs

I Also Have Piston Rings For All Oem Rb Engines

And I Also Have A Shit Load Of Oem Parts For Rb20.. So You Dont Have To Worry About Finding Parts

[revd34]

do a rb25. it is worth doing

http://www.sykoperformance.com/index.htm

[projectRDM]

Hi I was wondering what would be needed to install a RB20 into a S14? I have searched and most of the stuff that I found would be into an S13. Would it be around the same thing? What differences are their? And I read that you have to get SOHC PS lines. Wat about for the DOHC and I still need the mounts and crossmember. Anything else besides replacement parts? Thanks

Someone lied to you. SOHC power steering lines don't work on any engine except the SOHC KA. You would need DOHC lines, which you already have.

[turboeic]

I was doing a little more research and on one thread someone said you don't need the driveshaft. but on one website they have a driveshaft. to do i need it or can i get by without it?

[sideview_180sx]

put it like this. if you know you will be satisfied with 280-300whp. then get the rb20 in regards to what mods are needed to get the hp there and still have the RB sound. once you go past that hp, the rb20 becomes a paperweight.

-gt2535 or equivalent turbo
-intercooler
-fpr
-400cc or so injectors
-boost controller

and have at it. wiring should be very similar. if anything just rebend the PS lines gently or use a hand held pipe bender to get the lines to connect to the pump. see if you can source up an r33 crossmember. AFAIK its a bolt-in affair on s14 chassis.

[250sxdet]

If you're going to do a rb20 swap, just put in the extra money and do a rb25 swap. You'll be happier in the end. Why not get the extra .5 liters of displacement? I used the syko performance mounts for my rb25 swap, and I couldnt be happier with the quality and the placement of the motor. If you need mounts, pm kouki_s14 his name is henry and he distributes mounts for syko. Also, if you need a clip, we can also help you get one. If you need help with wiring, I can refer you to somoone. If you need a shop for the install, i know han from autohan...he does great work. LMK.

[slideways14]

1jz>rb20 1jz>rb20 1jz>rb20 1jz>rb20

[ECR33S14]

An SR would be much easier and also quite frankly a better buy. if your going RB do a 25 or 26. either way an RB will cost more than an SR and it sounds like your replacing a fucked up motor for a better one.

[250sxdet]

RB's are way more reliable for higher hp outputs than sr's ( 350whp+). Also, there is a day and night difference in torque and the smoothness of power as you go up the rev range. Honestly, the weight doesnt make a noticeable difference for track or daily driving. If youve never driven an RB powered car, dont bring up the weight difference. i havent come across any RB owners that have said the added weight had led to worse performance. There are things you can do to offset the weight; cf hood, battery relocation. BTW, the RB swap is not all that hard...I did mine with some help from my cousin. keep in mind that i have very little mechanical experience.

[slideways14]

1jz>rb20 1jz>rb20 1jz>rb20 1jz>rb20

[250sxdet]

^ Do you know how much money it would take to build a 450whp sr vs a rb25 that can already handle it with a standalone, new turbo, and injectors? Also, reliability is a big factor with higher horsepower. 1jz's dont own rb's. if anything, the 1jz is an equivalent to the rb25. If you want to talk 2jz's then those are comparable to rb26's. Besides, why do the 1jz swap when its a harder swap to do that requires more custom work?

[kouki_s14]

if you wanna do a 6 cylinder that bad do a 1jz. they own rb's all day long.

have you ever driven a SR powered 240? 1jz powered 240? RB20 powered 240? RB25 powered 240? RB26 powered 240?

probably not

SR20 is lightweight, that's about the only advantage it has

1jz, 2jz rb25/6 are all iron block motors, heavy yes, but smoother torque then you will EVER get with the SR

6 cylinders are 6 cylinders, 1jz is NOT better than an RB and an RB is NOT better than a 1jz. Both can be built to well over 1000hp, very few of us will ever build a motor to that capacity, so again we have absolutely no say in which motor is better.

So unless you've built and driven on all those motors your opinion isnt worth much

[slideways14]

1jz>rb20 1jz>rb20 1jz>rb20 1jz>rb20

[250sxdet]

^ LOL, obviously you missed the point. he decided on an RB swap. The rb25 is not too much more money than a rb20. were talking about $1000. The amount of work for the swap is the same. Power and torque is day and night compared to an SR. The weight difference doesnt make a performance difference. You are talking about a track car, but most likely this is his daily driver / weekend warrior.

[slideways14]

1jz>rb20 1jz>rb20 1jz>rb20 1jz>rb20

[kouki_s14]

actually i have driven a 2jz

in a supra i assume?

and been in rb 240


didnt drive it then? 25 or 26?
and prolly not on the track though right?

and have owned 2 s14 with sr20

ha and we wonder why you're choosing the SR

and was driving a hatch with a sr20 at an event yesterday.

so still no experience with an RB on the track yesterday either?


the only motor i havent expierenced first hand is a 1jz, but given there reputation and what not, i believe that is the best canidate with a r154 trans for doing a 6cylinder swap.

experience > so called reputation

the sr in a built track car gives you great balance

my car's balanced feels fine with my Syko motor mounts, CF hood, and battery relocation to the trunk

and why stick a motor that weighs more than that when you can achieve plenty of hp and performance from a motor that is suppose to come in that car in the first place.

plenty of hp yes, but you sacrifice reliability early on and again torque of a 6 cylinder is uncomparable.

so as for my opinion, i believe it is best to stick with a sr,

you already admitted you've only rode in a RB 240, so what is your opinion worth?

especially if you dont have boat loads of money to spend and dont want end up starting a dead beat project where in the end you will sell all your parts to someone else on this forum.

people that half ass swaps and are cheap shouldnt go RB anyway

not trying to pick a fight, but you need to do some more research before you say a RB240 is only for drag

[250sxdet]

Ok, the rb25 bottom end can hold about 500whp. What are you going to do with more power than that? The 1jz is also a 2.5L, so I i dont see how it can make more power than an RB25. Seeing as how both are 2.5 liters, 6 cylinders, and iron block.

[kouki_s14]

1jz $800, rb20 $1200 , rb25 $2000. mounts for the car will run all about the same depending on who you know, or you could just use a r32 cross member. all these swaps require extensive wiring. time spent wiring will be a little more for the 1j. as for power rb20 is completly useless hence the sr20 referal. rb25 can make power , but doing the same upgrades to a 1j will give you more power. 1j can handle a shitload more power on a stock bottom end. ultimately, the 1j motor will make more power easy and cheaper than an rb. im all for nissan but the 1j is a better canidate for swap.

go find a 1jz and put it in a 240 without extensive fabrication. Not everyone is an engineer, welder, fabricator. A RB swap can be done by most people at home which saves at least 1500 in labor. With the 1jz you run into problems with exhaust routing, powersteering, AC, etc.

1JZ into a Nissan is not cheap for the common 240 owner

[slideways14]

1jz>rb20 1jz>rb20 1jz>rb20 1jz>rb20

[vanish1]

RB20: 1989-1993 217 hp/ 203 tq 1200 bux
red SR20: 91-94 205 hp/ 202 tq 1900 bux

RB20 is same weight as KA-T. There are full gasket rebuild kits. Most RB20s were in family cars, where as SR20s were abused more.
You CAN fit a KA tranny onto a RB20...white bunny special.
less stress per cyclinder compared to a I4 when pushing nice boost.
2.0L RB is better bc more detonation occurs with higher compression and more boost

[turboeic]

alright thanks i guess now i know not 1jz even though I really wasn't thinking it. And me and my bro are gonna do this and he's very mechanically savvy. But do i need a driveshaft or can i used my stock one.

[kouki_s14]

you need a new one

[sblack13]

well with the stock r32/r33 crossmember you should be able to use your stock driveshaft. With one of the cars i had that i did an rb20 on, i only had to use a custom driveshaft was because i was using a custom crossmember.

[slideways14]

1jz>rb20 1jz>rb20 1jz>rb20 1jz>rb20

[MadScientist]

HAHAHAHAHA.... some lame-o-tard gave me a -rep and called me a POSER!!! Leave a name next time...or are you worried about getting -rep in return!

I have driven an RB20DET... its way way under powered and runs high 15s at the track... that is = to the stock KA24 & CA18. Reliablity is no reason to do a swap especially with any of the RBs. Yes you can get parts from random sources but then your dealing with effects of a dwindling market, and less reliable sources. You want reliable... stick with the KA... its a stong motor on its own and has good torque. KA-T will add a few issues and if your not looking to drop extra cash on a spare engine... dont do it. SR20 is reliable as the stock KA, but can hold higher boost more reliably. RB is a stong in the 25 and 26 and has huge support (growing in the US)... also holds boost and can killa 1jz or 2jz all day when built (higher RPM, higher boost curve, higher torque range).

I say again... consider the aftermarket support when dealing with engine swaps. Its not a Trend... its Fact!!

Peace
Drew

[kouki_s14]

and your suppose to know it all? you do research


First of all, i meant to say if you do the RB25 swap you need a new D/S, since that seemed like the best option to most people in this thread except for you.

The RB20, the stock driveshaft can be used.

dont do an RB, its just a gay swap taht is pointless. day and night torque this and day and night torque that. if the rb was such a good canidate for a swap everyone would be doing it but the simple fact is its not.

Again you have NOT driven an RB 240, you SAT in one so you opinion here is worthless

as for doing my research i have been working on 240s for 6 years. i have done plenty of it.

doing what changing oil? seems like you dont know anything other than how to clutch kick a 240

my point was that if you do a 6cyl swap the rb gets owned by the 1jz. as for doing research i think that toolbag mod should go do some because he obviously thinks the rb is equivalent to the 1jz which is completly idiotic.

You said yourself you only THINK the 1JZ is better from what you've heard about its reputation. Also i stress the point where you said you only SAT in a rb powered 240. You still havnt answered if it was RB25 or RB26, along with many other questions i had for you up there.

and as far as realiablility in an sr. what other 4 cyl motor can you make 350-400 whp on a stock bottom end and drive it all day long with no worries? sr has to probably be one of the most reliable engines out there and resourseing cheap bonus parts is a dime a dozen.

HAHAHA go make a 400whp SR and drive it daily, not only will it cost you quite a bit, but with a stock bottom end things will begin to break quicker than you think. Then if you drift it, it's going to blow up faster than you can realize you're the wrong one here. A good amount of the tech threads are of people breaking things and asking for help. Most likely the SR's that came to the states were beat up in the original Silvia's in Japan. So people are getting fairly abused motors to begin with. There are cheap parts a dime a dozen because so many people blow up the motor, so there are tons of spare parts.

RB's can make 400whp with almost no turbo lag, and it'll go up around 500whp with a stock bottom end. Build the bottom and take it to 700-800+. Do that with an SR and make it reliable, probably wont spool the turbo until 4k rpm.

i was just tryin to point out that a RB will be a money pit and the rb20 that you wanna do is completely pointless compared to the sr20.

RB20s have surprised me, so dont go saying it's pointless

a rb25 swap will run you close to doing a custom 1jz swap. thats all

prove it

you really dont give up do you

[ECR33S14]

the 25 can handle alot more than just 500 on stock internals. the 1j would be more of a bitch to swap. and the same upgrades on both motors WILL NOT YIELD MORE POWER IN A 1J COMPARED TO A 25. besides why would you want a motor that can only rev to 6200 rpms without modification.

[slideways14]

1jz>rb20 1jz>rb20 1jz>rb20 1jz>rb20

[!Zar!]

you and your torque. RB's are for people who want to be cool hard parking their car and tapeing up the headlights. thats all
mega lameeoooo. my all motor civic hatch would eat a rb swaped 240 at the track anyday. leave the RB's for the skylines,
now i have to get rid of my kouki because you are giving them a bad rep
lololololololololololololololololololololololololo lololololololololololololololyoufailatlifelolololo lololololololololololololololololololololololololo lololololololololololololololololololololololololo lololololololololololololololololololololololololo lololololololololololololololololololololololololo lololololololololololololololololololololololololo lololololololololololololololololololololololololo lololololololololololololololololololololololololo lololololololololololololololololololololololololo lololololololololololololololololololololololololo lololololololololololololololololololololololololo lololololololololololololololololololyoufailatlife lololololololololololololololololololololololololo lololololololololololololololololololololololololo lololololololololololololololololololololololololo lololololololololololololololololololololololololo lololololololololololololololololololololololololo lololololololololololololololololololololololololo lololololololololololololololololololololololololo lololololololololololololololololololololololololo lololololololololololololololololololololololololo lololololololololololololololololololololololololo lololololololololololololololololololololololyoufa ilatlifelololololololololololololololololololololo lololololololololololololololololololololololololo lololololololololololololololololololololololololo lololololololololololololololololololololololololo lololololololololololololololololololololololololo lololololololololololololololololololololololololo lololololololololololololololololololololololololo lolololololoyoufailatlifelolololololololololololol ololololololololololololololololololololololololol ololololololololololololololololololololololololol ololololololololololololololololololololololololol ol

[kouki_s14]

you and your torque. RB's are for people who want to be cool hard parking their car and tapeing up the headlights. thats all
mega lameeoooo. my all motor civic hatch would eat a rb swaped 240 at the track anyday. leave the RB's for the skylines,
now i have to get rid of my kouki because you are giving them a bad rep

hahahaha you just crack me up. Is that supposed to get me mad? You resort to name calling and immature words. Who is going to take anything you have to say seriously now?

You have a civic? No wonder you're not giving up and turn to name bashing when you lose a debate.

Good get rid of your kouki, you don't deserve to own one anyway.
Leave the Nissans to people who are true enthusiasts, not people who choose 1JZs and hondas.

[98koukile]

Yeah 1jz in my 240 any day... but only if you buy it off me first
Leave those to Supras which ironically got owned by Skylines at the track their whole career.
I love Toyota but let's leave their engines in their cars
Take peoples advice man, get an rb25... go big or go home

[wangan_cruiser]

go for rb25....same cost more hp

[kensreliableb18b]

*sigh* this thread makes me :squint:

my contribution:


rb20 isnt worth it (to the OP)

rb25 swap more worth it than rb20 swap

i still prefer the sr20 swap over rb25 swap

dont ask me "WHY????" because whatever i say will never convince you "pro-rb swap" people. this is just my preference

[kouki_s14]

dont ask me "WHY????" because whatever i say will never convince you "pro-rb swap" people. this is just my preference

And i respect that, some people like SR some like RB.
I'm not trying to say everyone should go RB. I was just trying to set facts straight, since someone was trying to prove something with absolutely no credentials in the subject.

[slideways14]

1jz>rb20 1jz>rb20 1jz>rb20 1jz>rb20

[KADRIFTER]

HAHAHAHA!!! I usually dont post on this type of crap but this thread is too funny!!

Since i din't see it mentioned - except for in the original post...
Why don't you do a KA and build it right with some Crower rods, clevite bearings, and Arias pistons. I'm sure you've seen Ivan's ride at www.ka-t.org - if not take a look. Same setup I got...

All this SR and RB talk - figured someone should consider the good ol' KA!!!!

Just a thought:naughty:

[kouki_s14]

and you have credentials why? cuz your user name is in blue? cool beans

I came from an experienced standpoint, you however came from "what i've read on the internet" standpoint.

please do us all a favor, sell your 240(or crash it) and stick with your NA civic. Go back to honda-tech or whereever you came from

[ECR33S14]

Damn ive got an all motor EG hatchback and hmm lets see i prefer my S14 over the hatch ANYDAY. thats why the hatch is for sale.

[95240s14]

Why would you even consider a 1jz into a nissan when the RB series exists??
why not drop chev 350?? Keep toyota motors in toyotas and nissan motors in Nissans.
I have an rb20 in my s14 and i love it. I paid 1200 bucks for an entire front clip and have no regrets. I have 2 years on the motor and am now upgrading turbo , looking for around 250-280 WHP. In all honesty, if i had to do it again, I probably would have gone Ka-T, but would never go SR.

[slideways14]

1jz>rb20 1jz>rb20 1jz>rb20 1jz>rb20

[kouki_s14]

as far as a reasonable argument goes, its acceptable to bust chops, by telling me to crash my car is going way to far.

I told you to crash your car because you were being immature and calling me an idiot. YOU started the name bashing, so i said what i wanted to say because you crossed that line first. Not like i meant it literally, get over it.

and your suppose to be someone that controls this forum. very dissappointed.


I am not a Moderator, i have a premium membership which is why my name is blue. So you can be disappointed all you want.

i have loved 240's since my first one which i had before i could even drive. i have done swaps and was giving my .02 which is not to outrageous and would create a monster of a 240.

bit confused on what you were trying to say there

never have i said an rb was garbage, but as far as 6cyl go a 1j would be awesome in a 240. 1jz has been a very common swap in japan becuase of its potential.

"dont do an RB, its just a gay swap taht is pointless"
^^^YOU said that, close enough to calling it garbage right?

Just cause it's being done in japan makes it the best candidate all of a sudden? There is little to no potential difference between the motors. The difference will probably occur once you pass the 1000hp mark, so unless he is buiding a dyno queen, both motors are equal.

i used my honda to state a point.

No you used your Honda to bash RB powered 240's you've never driven


im only 20 and find it very irresponsible in the way you react to someone elses opinion.

What's your age got to do with anything? My reaction is not irresponsible, my reaction here was to correct your empty opinion on the subject. Because again, you lack the experience in this matter to give him advice.

do some research on a 1jz and tell me what the consenses is.

I know what the motors are capable of, and the RB is just as good.
But all this motor vs motor threads have been beat to death.

If you have experience with a 1JZ/2JZ in a 240, if you swapped it in yourself, if you've built it, if you've driven on a track with it AND done all the same with a RB25/26 in a 240, i would not have replied to this thread at all. If you had some kind of proof from your own experience then i would listen to your opinion, but you lack all of that. So this is why i am saying all this, trying to prove my point because i like this forum and i want to keep facts straight. It may be an attempt in vain, but every bit helps.

So stop getting mad because you loss an online debate, you're the one reacting unreasonably.

[turboeic]

OK so umm kinda got off topic but I've already made up my mind. I know you guys are just putting in your opinions but I don't think that it will change my mind.
But I have had a good running KA-T as my first KA, and it ran cherry. But I guess I would just like to see the feel of a 6 you know. And since I only have a year expirience driving I really don't want to try for a RB25 and especially a 26. I guess just baby steps gotta take baby steps.
And thanks to you all for your advice.

[silnismo]

1jz motors swaps SHOULD NOT EVEN BE IN THIS THREAD!!!! who ever brought it in should be shot....

[mig240sx]

LOL, let me jump into this man, there is nothing wrong with an interracial marrage of a Nissan+Toyota=Nisyota! 1jz in a 240 all the way!!! 500+ horses with only single turbo and bigger injectors, that's it; and it's an every day drivable car. My power band starts at 3000 rpms (with my new Master Power turbo). Ultimately, it's whatever floats your boat, 1j, RB, SR, power is power. But if you want high HP with little mods, I suggest a 1j.

As for after-market support, there are tons of it for the 1j! 2j parts from Supras all all over the US.

Caution: If you decide to get a 1j in a 240, make sure the person doing it has references (past work on in it). This is not a common swap everywhere, but the performance results are huge.

[bardabe]

you realize you bumped a pretty old thread? either way congrats on the 1JZ 240. I personally have an RB20 S13 and I love it.

[cloudstrife930]

I have been in an rb 20 s13 and plan on dropping one in my s14. I say its a good upgrade and resonable especially because you need a motor to keep it running. Dont listen to the hate its got mad potential, Good bang for the buck in my opinion. Parts are out there. Good torque, and you could definitly get 400 and change hp. any hp over that is not even that great streetable, no traction. I say go for it.

[coreansurfer]

way to bring back a long dead thread

[Z U L8R]

i like my rb25, and !Zar! i'll race ur civic at the track =]

you could do an rb25 motor set then sell your rb25 tranny for 900-1100 bucks, and get an rb20 tranny for a couple hundred. then your driveshaft should be fine, and you have an easy 400 hp capable motor /w just bolt ons. only problem is 400rwhp you start breaking rb20 trannies >_<. that's just an option

i personally like the rb20's more than sr20s. they sound better to me, rev higher, already have a t3 flange'd turbo, easier to work on in regards to dropping some cams in it (the only nissan motor that workin on it is a real pain in the ass is doing valve cover gaskets on a vg30de, dat sux). once you get into rb's you'll find parts (with the exception of pistons for an rb20) are just as easy to find. to wire in your rb20 is all of 3 wires to get the thing running, 2 more for coolant temp and speedo to work.

if you need any rb help, shoot me a pm. before i went with my 25 i had a 1jz sitting there waiting to go in my 280z but for other reasons i chose to keep it nissan, gl man
Dave =]

[02BRB20]

i you'll find parts (with the exception of pistons for an rb20) are just as easy to find.

CP and Supertech make pistons

[sillyvia13]

Someone lied to you. SOHC power steering lines don't work on any engine except the SOHC KA. You would need DOHC lines, which you already have.

Really...
My freind just used his SOHC lins in a s13 for his rb20det!

[!Zar!]

Z U L8R: GFG for calling out the wrong person. But while were at it, I'm positive a civic would beat your car around the track. As for my personal cars, I'd say I easily have one that would be more than competitive against your s13...er wait... You aren't telling me you're going to race me in 280z are you...


Wow...

[Overdose]

if you dont mind me asking.... whats the ballpark of how much $ your dropping for whatever you choose + swap ???

[RPS13FREAK]

lol, this thread is old.

I have a RB20DET in my 240sx Coupe. It feels a lot faster than my old SR20DET Sileighty I had.

I don't know why people knock it.

[240_hawaii]

rb20 feels better than a sr. i no this because i own a rb20 coupe and i have drivin a sr hatch. dont run your mouth if you have no idea whats going on.

[Tenchuu]

if you dont mind me asking.... whats the ballpark of how much $ your dropping for whatever you choose + swap ???
http://www.zilvia.net/f/showpost.php?p=1605283&postcount=198

and a 280Z can be a mad track beast. There is one at my local auto X (V8 powered of course) that owns almost every car out there vipers included.

[Z U L8R]

there's no round the track for the 280z, just the staging lanes with the tree and the side road to get back in the staging lanes hehe, my bad on the callout !ZAR! i misunderstood, i see those were slidewayz words not yours.

i like watching drifting and my 240z will be set up for autocross. the 280z is just to get the powertrain situated so it's just a straight line car. the 240z's got the suspension on it, and the two will have sex once the body work's done on the 240 heh.

anywho none of the motors mentioned suck, even the hondas, it just all depends on you, your taste, and how much money you have to meet your goals with. gl
Dave =]

[hijack3d]

Hi I was wondering what would be needed to install a RB20 into a S14? I have searched and most of the stuff that I found would be into an S13. Would it be around the same thing? What differences are their? And I read that you have to get SOHC PS lines. Wat about for the DOHC and I still need the mounts and crossmember. Anything else besides replacement parts? Thanks

Alright guys, the OP isn't really getting the answers to the questions he asked. And instead of getting into this SR vs RB vs KAT vs Toyota vs Honda vs Your Momma's Face battle, we should probably try to help him out... It can get really frustrating when people only answer questions you didn't ask.

1) If you get aftermarket engine mounts, you wont need the R32 X-member. So to mount the engine you'll either need:

R32 X-member + Stock Mounts or Aftermarket Mounts
try: McKinney Motorsports (http://www.mckinneymotorsports.com), they're located in Temecula, CA.

2) Use your DOHC PS lines. But I think someone else already said that...

3) You can use your stock 5-speed driveshaft. (I think someone said that too..)

4) When you're ready to do your "conversion" harness, and if you're not planning on doing it yourself, PM me and I can help you out with options. The guy I normally use to do harnesses charges $200 for RB20 into S14. $150 if he doesn't have to source out replacement plugs and your harnesses haven't been tampered with. It would be more if you don't have an RB20 harness or an S14 harness to use.

Now... for my $0.02.... Speaking from someone who's owned an RB20-powered S13 (and an 89, an SR'ed 91, a stock 93, and now a 95)...

Money vs Money (not exactly mod for mod), the RB20 will make more power than the SR20... until about 300rwhp. Then, the prices for owning an RB vs owning an SR evens out and the SR will exceed the RB20.

Daily driving, it's awesome. With the tune I had (it's all about the tune), I got about 25-30mpg with mixed highway/city driving. Yes, it's an engine that isn't known for spanking Vettes or throwing out high dyno numbers, but for daily driving (and maybe the occasional track event), it's perfect. And with the stock recirc. valve, I never had any stalling issues that's normally seen with a swapped engine with an atmospheric BOV.

So if you're not looking for gobs of power (which, on a street driven 240sx, about 300rwhp seems more than enough IMO), and you're going to be daily driving, the RB20 isn't a horrible option.

[02BRB20]

fantasy build of mine is:

RB20 w/ upgraded valvetrain and GT28RS :2f2f:

[Forge_55b]

OK so umm kinda got off topic but I've already made up my mind. I know you guys are just putting in your opinions but I don't think that it will change my mind.
But I have had a good running KA-T as my first KA, and it ran cherry. But I guess I would just like to see the feel of a 6 you know. And since I only have a year expirience driving I really don't want to try for a RB25 and especially a 26. I guess just baby steps gotta take baby steps.
And thanks to you all for your advice.

i guess people don't read the actual guys comments that started the thread......

that said im actually considering a RB20 mainly cause its torque and power curves are what im looking for compared to the SR or RB25/26......

[bardabe]

Alright guys, the OP isn't really getting the answers to the questions he asked. And instead of getting into this SR vs RB vs KAT vs Toyota vs Honda vs Your Momma's Face battle, we should probably try to help him out... It can get really frustrating when people only answer questions you didn't ask.

1) If you get aftermarket engine mounts, you wont need the R32 X-member. So to mount the engine you'll either need:

R32 X-member + Stock Mounts or Aftermarket Mounts
try: McKinney Motorsports (http://www.mckinneymotorsports.com), they're located in Temecula, CA.

2) Use your DOHC PS lines. But I think someone else already said that...

3) You can use your stock 5-speed driveshaft. (I think someone said that too..)

4) When you're ready to do your "conversion" harness, and if you're not planning on doing it yourself, PM me and I can help you out with options. The guy I normally use to do harnesses charges $200 for RB20 into S14. $150 if he doesn't have to source out replacement plugs and your harnesses haven't been tampered with. It would be more if you don't have an RB20 harness or an S14 harness to use.

Now... for my $0.02.... Speaking from someone who's owned an RB20-powered S13 (and an 89, an SR'ed 91, a stock 93, and now a 95)...

Money vs Money (not exactly mod for mod), the RB20 will make more power than the SR20... until about 300rwhp. Then, the prices for owning an RB vs owning an SR evens out and the SR will exceed the RB20.

Daily driving, it's awesome. With the tune I had (it's all about the tune), I got about 25-30mpg with mixed highway/city driving. Yes, it's an engine that isn't known for spanking Vettes or throwing out high dyno numbers, but for daily driving (and maybe the occasional track event), it's perfect. And with the stock recirc. valve, I never had any stalling issues that's normally seen with a swapped engine with an atmospheric BOV.

So if you're not looking for gobs of power (which, on a street driven 240sx, about 300rwhp seems more than enough IMO), and you're going to be daily driving, the RB20 isn't a horrible option.


I will 2nd his statement and couldn;'t have said it better myself.

I had a 1990 SR'd coupe, a 1990 RB20's Coupe. exact same mods the RB20 was faster, smoother, and well i even got better gas milage. this man speaks the truth!

[GabeS14]

I loved my R32gts-T,
I think the RB pulls better.(when comparing 2 stock engines)

[slideways14]

well i got a car with a rb20 in it to test my theory, i will have to say i love the rb and i feel like an idiot, but i still think the 1j is better haha. but yea i made great power with the rb20 and drift the balls out of it, but have yet to get to a track. so sorry guys i was being an idiot

[240trooper]

save you time on a swap, rebuild ur ka from the bottem ,and go ka-t , 7psi with a g28 give u round 250hp ,thats good from a small turbo at low boost, u dont need to build the eng unless u wanna pass 300hp then start building it. Ka-t is gunna cost alot but in the end u'll eat eveything up lol , go check out www.ka-t.org , plus the fastest 240/silvia in the 1/4 ive seen was a ka-t 8.7 secs ...i rest my case , ohh yea and if u live in the great oll state of cali ur screwed if u get pulled over with an sr or rb ,kiss ur car byby, if its a track car nvm lol

[Z U L8R]

apology accepted =]

RB FTMFW! =]

[cloudstrife930]

Ok, I dont understand why an rb20 is such an ok swap. There are parts out there for it, and more becoming readily available. You mean to tell me you cant have a 500 hp rb20 or 400 for that matter. you can upgrade turbo, get pistons, cams, all that, why is this motor just ok. We should replace the sr with the rb20 on the most wanted swap list and line up all the sr guys and thier cars and throw them into a blazing fire :) Sr's are useless, and are less than an ok swap. If your looking for a swap with very limited potential no torque, and likes to over heat and blow coilpacks get an sr!!!!



"notice me trying to start controvercy and rile people back up lol":rl:

[slideways14]

the rb20 is a good canidate for a swap because it is so cheap. i had a rb25 turbo on my 20 and it made 260whp at about 8 lbs of boost. an i never really tried to make more hp then that but i heard around 300 is about where most people get with theirs.

[Yellow4g63]

the rb20 is a good canidate for a swap because it is so cheap. i had a rb25 turbo on my 20 and it made 260whp at about 8 lbs of boost. an i never really tried to make more hp then that but i heard around 300 is about where most people get with theirs.

Damn thats some good power out of the stock RB25 turbo. The most I got out of my Stock RB20 turbo was 240hp and that was at 13psi. Someday my car will run again with all it's new goodness lol.

[cloudstrife930]

in all seriousness, the one thing that keeps me dabating between an rb, sr or going kat is the fact that my car is a daily driver. When your rb brakes down, where do you get parts, i know you can cross reference, but what about japan only parts

[slideways14]

if you get a healthy rb20 it will be reliable, you just gotta learn more about the motor so you can maintence it and keep it going strong. make sure you check the compression before buying one a check the overall condition of the motor.

[drifts135]

What are you people breaking on RBs that you cant find stateside???????? Yall blowin' em up and rebuiling them weekly???? I searched here and found some of EVERY kind of RB part for sale reasonably. stock up, shits cheap to almost free! (its just old RB20 JUNK anyway,lol.)

slideways14 has my old RB20 coupe... The engine was kindof a freak like that. It always made wayyyyy more power than it should have. Its mod list is short, but I think it's mostly in the ecu. It has an RB25 turbo, aussie screamer dump, ebay FMIC, an apexi GT spec exhaust (sooooo sweet soundin on rb), and a ROM tuned ECU that came with my skyline (yes, I had one) from japan. I kept the ECU when I sold the line, and put it in the RBS13. The ROM tune was for RB25 turbo, boost cut elim. and speed cut elim. on skyline. The car REALLY DOES make like 264whp or some shit on NOTHING ELSE (stock RB20 wastegate actuator on rb25 turbo ofcourse).

My R32 GTS-T-m with similar mods and WITHOUT that ecu in it made only 224whp and an embarassing tq#... It felt like ass. The ECU was a night and day thing... Not that that matters for most, guess Im just backing up slideways.

BTW, if the original poster is still around. I hope yer enjoying the crap outta yer RB20 right now! I know I am.

[slideways14]

im thinking about rb20 or 25 for my new s14 :)

[Petrol]

Not read the whole thread but this guy fitted an RB26DETT into an S14 :bowdown:

http://www.sxoc.com/vbb/showthread.php?t=202731

There might be some info that helps you :)

[HKSdrift3r]

i personally think the rb20 is fantastic!! my friend did one in his s13 and at stock boost with a rb25 t28, the car ran a 13.6 on crap tires. That motor is really smooth and provides much low end torque. did i mention it sounds tits!! for a basic swap (not crazy high hp), i would choose the rb20 over the sr20 anyday of the week.

btw, same friend got it tuned at 15psi with the same turbo and the car is an animal!!

Hope this helps you or anyone else thinking about this swap.

Later,
George

[Yellow4g63]

Check out this guys RB20 build. Simple and fast too http://www.cardomain.com/ride/630659

[wannabe_drifter]

This is making me go crazy !

I can't already decide by myself !

I thought I was fixed on going KA-T but the fuckin RB comes again with so many good comments !!! ... and it just sounds so good !!!
(1jz sounds freakin nice as well)

Anyway... whatever don't have any money now and for a while..

[HKSdrift3r]

^ all choices are still better than the sr..

[HKSdrift3r]

Check out this guys RB20 build. Simple and fast too http://www.cardomain.com/ride/630659

its all about the tune...

again, proof that the RB20 is a serious contender!!

[xcusememisswyn]

I love my RB20det haha

[cloudstrife930]

Its really hard for me to decide as well, and i bought my car with a dying motor. When I bought it, i was all sr20!!! I know imma go rb20 in the long run. I was joking about the sr being a shitty motor, just because the sr guys are always bashing the rb20, but for me I think the rb20 is a good choice. The price, the torque, etc etc. And you know what, yes its an easy way to get the rb skyline sound, so what !!!! I was gonna rebuild my ka but looked at it when all was said and done, and i need a clutch and etc. cheaper for me to just get the dam swap, and thats buying a rebuilt head and block, fuck it. People just dont wanna admit this is the best bang for your buck, cuz they already bought an sr or an rb25! Dont expect to sell your car tho and ask for the same as a smililar car with an sr or rb25 tho.

[racer98]

Hi I was wondering what would be needed to install a RB20 into a S14? I have searched and most of the stuff that I found would be into an S13. Would it be around the same thing? What differences are their? And I read that you have to get SOHC PS lines. Wat about for the DOHC and I still need the mounts and crossmember. Anything else besides replacement parts? Thanks



R32 X-member - transmission mounts + motor mounts

P/s pump Non hicas & custom made ps lines.. just besides the wiring you will need to do some modification.

trick is RB20DET bottom end with NEO VVL head + Cams + a T3/T4 turbo set up = should make for some good #'s :mepoke:

[Yellow4g63]

They don't have a VVL head for the RB20. VVL has 3 cam lobes per cyclinder like the honda Vtec motor. The NEO stuff on the R34 is diffrent, It's more like the S14 VCT (or was VTC).

[racer98]

They don't have a VVL head for the RB20. VVL has 3 cam lobes per cyclinder like the honda Vtec motor. The NEO stuff on the R34 is diffrent, It's more like the S14 VCT (or was VTC).

http://i43.photobucket.com/albums/e359/racer98/DSCN1820.jpg

[cloudstrife930]

i thought for some reason that the rb20 just bolted into s14 chassis with r32 crossmember, is that true or you need other mounts?

[hijack3d]

i thought for some reason that the rb20 just bolted into s14 chassis with r32 crossmember, is that true or you need other mounts?

Read the thread dude. :aw: It's been covered here along with many many many many times before!

[Yellow4g63]

http://i43.photobucket.com/albums/e359/racer98/DSCN1820.jpg

I know it says NEO on it but it dosen't say NEO VVL
http://i137.photobucket.com/albums/q211/Bluerb240/Ivans%20VE%20pics/P1000688.jpg

and if you pop the top you won't find 3 lobes per cyclinder. It would look something like this.
http://nissaninfiniticlub.net/photopost/data/500/4316VEh_2_-med.JPG
http://nissaninfiniticlub.net/photopost/data/500/4316VH-med.JPG
Would have been sweet if nissan did this for the RB motors.

[cloudstrife930]

go for rb25....same cost more hp


rb25 is about 1500 more, and you need to buy more for it to work. drive shaft and mounts if you have an s14. Rb20 just bolts up and can use stock driveshaft

[bardabe]

I know it says NEO on it but it dosen't say NEO VVL
http://i137.photobucket.com/albums/q211/Bluerb240/Ivans%20VE%20pics/P1000688.jpg

and if you pop the top you won't find 3 lobes per cyclinder. It would look something like this.
http://nissaninfiniticlub.net/photopost/data/500/4316VEh_2_-med.JPG
http://nissaninfiniticlub.net/photopost/data/500/4316VH-med.JPG
Would have been sweet if nissan did this for the RB motors.

god please no... I hate the Rocker Arm System. it's so gaaaaaaaaaay. Bucket and Shim is the best. IMO

[Yellow4g63]

9600 rpms with no problems = Ok in my book.

[CylonFrakker]

the 25 can handle alot more than just 500 on stock internals. the 1j would be more of a bitch to swap. and the same upgrades on both motors WILL NOT YIELD MORE POWER IN A 1J COMPARED TO A 25. besides why would you want a motor that can only rev to 6200 rpms without modification.


Is that what you think the stock redline is on the 1JZ?

[motorsnail]

RB 25/26 = This thread has been owned.........

LS1 = This thread has been owned.

sr20det= shouldnt even be in the same thread as these beasts.

1jz= 2jz pwns jooo

thread is over eh?