RB25DET I searched but is it worth it? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

hangook · 02-02-2004, 01:52 PM

Ok, I have been knee deep in the whole RB25DET business, I know all the details and all, but Im still not sure if its worth it. Does anyone know if it is easy to put it up to 350hp? ALso, for all the work I would have to go through sticking the engine in, does the rb really put it out. Im a little concerned being a GTS and not a GTR?

thanks for the help

goofynick6 · 02-02-2004, 03:56 PM

They can make 450whp and hold it easily on stock internals. Making 350 whp is what I plan on, 350-375. Upgraded turbo, injectors, and way to control it (e-manage, safc, or something like that) and some tuning and you'll be set.

Nick

RBBaby · 02-02-2004, 04:31 PM

get the rb25det.

93veilside240sx · 02-03-2004, 07:22 AM

whether its worth it or not is totally up to you...yeah it has more stock power and can handle more on a stock bottom end...but it also costs more, requires a little more work, and is a little heavier...i was torn b/t the rb25 and sr20 for the longest time, but i decided to stick with the SR...just make sure you weigh every option before throwin out the money for either swap...good luck

christopher · 02-03-2004, 07:27 AM

It is incredibly easy to get that thing up to 350hp. No internals. I would search google. Also if you want a good idea of what is out there for it, EVERYTHING IS. If I could afford it I would gladly get an RB.

Get it for sure, go nuts. You can have a monster.

mellojoe · 02-03-2004, 12:29 PM

Its going to come down to money, really. Given the money to do the RB25 swap, I think just about everyone on here would do it compared to the SR20. But, most of us DON'T have the $$$ to spring for the kind of setup. But, it would be the preferred motor. And don't forget, McKinney Motorsports has a $500 mounting kit that makes the RB26DETT just about a straight drop-in and you can keep the twin-turbos.

But, then again, the cost of the engine alone is more than a complete SR swap done and done.

Go for the RB if you can afford it. You will have a beast and a unique driving machine. If you don't want to spend as much money on that type of hobby that is really only worth money to the user and doesn't help the resale on the car much at all, then go for an SR swap. Its a great engine.

BuryTheNeedle · 02-03-2004, 03:01 PM

I'm hopefully putting down a deposit on an RB clip sometime this week. The engine weighs about 180lb more than the KA. Relocate the battery, get a CF/FRP hood and you should be good. The power will equal out the weight as well.

250hp right off the bat is great, with the breathing cleared up it should be a tad bit high to say the least. I plan on getting only 300-325 to the rear wheels, so the i'm pickin up a FMIC, aftermarket Intake manifold, and of course 3" piping all the way back. After that maybe a fuel upgrade.

goofynick6 · 02-03-2004, 03:13 PM

The RB does NOT weight 180 more than a KA...recheck the facts.

Nick

Ghettokracker71 · 02-03-2004, 03:23 PM

a local shop told me they'd swap in an SR....turn-key for $5000(including auto->man swap)

BuryTheNeedle · 02-03-2004, 03:40 PM

http://www.sportcompactcarweb.com/tech/0309scc_hybrid/

3rd pic down, it says 720 for the weight of the RB. KA weighs 540.

*fliprayzin240sx* · 02-03-2004, 03:42 PM

350hp out of an RB is a cake walk. Its like asking to get 350hp out of a VG30Dett. Intake, exhaust, re-chip the bitch to run double boost *16-18lbs* and voila ATLEAST 350hp.

ultraprince · 02-04-2004, 11:01 AM

how about cali registration/smog/emmision/carb? is there way around it...while you are ansewring i'm gonna see what i can find on search.

Var · 02-04-2004, 12:12 PM

Quote:

Originally Posted by Ghettokracker71

a local shop told me they'd swap in an SR....turn-key for $5000(including auto->man swap)

that's about 1500 over what it should be

Var · 02-04-2004, 12:14 PM

Quote:

Originally Posted by ultraprince

how about cali registration/smog/emmision/carb? is there way around it...while you are ansewring i'm gonna see what i can find on search.

dont bother trying to figure it out. just get someone to pass it for you illegaly and hope you never get sent to a referree. California is a MOTHERCUNTBICTHASSHOLESLUTWHORE when it comes to automobile laws. it's truly unfair but you gotta deal with it.

Ghettokracker71 · 02-04-2004, 03:14 PM

Quote:

Originally Posted by westboroughpimp

that's about 1500 over what it should be

GRRRRRRRR!!!!!!!!....that pisses me off....thats the only shop I've been able to find in state(virginia) that'll do the SR swap....assholes

SR PwrdVA · 02-15-2004, 09:03 PM

There's a couple shops in Hampton Roads that'll do an SR swap, and I did mine myself so hit me up if you want any info or pricing. Peace

dekand · 02-15-2004, 11:15 PM

with the prices of sr's and rb's... its really in my opinion not worth it for the sr... (im mainly speaking of s14 sr, because if i did sr thats most likely what id do) but even s13 clips are 2500-3200 from a reputable supplier... i got my rb25 clip for 2900 so you do the math. sure it cost a little more to get it in *right* because you need a mount kit and driveshaft, but its an inline 6 2.5l vs a 4 banging 2.0 liter... not putting down the sr, but come on its an easy decision to make

at least for me anyway... whatever you do just have fun with it and enjoy the car.

jojothemonkey · 02-16-2004, 01:03 AM

Quote:

Originally Posted by hangook

Ok, I have been knee deep in the whole RB25DET business, I know all the details and all, but Im still not sure if its worth it. Does anyone know if it is easy to put it up to 350hp? ALso, for all the work I would have to go through sticking the engine in, does the rb really put it out. Im a little concerned being a GTS and not a GTR?

thanks for the help

Hey goto nico forums they have a whole bunch of info on the rb swaps.
http://www.nissaninfiniticlub.net/fo...hp?forumid=135

http://www.venus-auto.com
They have tons of engines.

the240sxer95 · 02-16-2004, 02:25 AM

venus.. i read a few bad things from them.. are those things rumors or are they not a good source for motors...

spykes · 02-16-2004, 07:49 AM

i was thinking of getting a rb26dett for my 1989 240sx. but then i have to relocate the battery and remove the stock oil pan change the hood into something lighter. i remember rb26 is like 400lbs heavier and causing the car to go understeer and smash between a wall is a easy thing for it. my friend has a rb25det that thing is a monster.
but that thing understeer like a bitch in his 240. so i dunno if i might get the rb26dett as well

hehehe RB25DET.org

BuryTheNeedle · 02-16-2004, 01:17 PM

Quote:

Originally Posted by spykes

i was thinking of getting a rb26dett for my 1989 240sx. but then i have to relocate the battery and remove the stock oil pan change the hood into something lighter. i remember rb26 is like 400lbs heavier and causing the car to go understeer and smash between a wall is a easy thing for it. my friend has a rb25det that thing is a monster.
but that thing understeer like a bitch in his 240. so i dunno if i might get the rb26dett as well

hehehe RB25DET.org

Uhhh i dunno about that, and i doubt the RB25 causes your friends car to understeer. Once again....

It weighs 180lbs over the KA, and most of the weight is in the tranny. Relocating the battery, getting a lighter hood and suspension tweaks should compensate for any added RB weight. It would help if the driver lost some weight too.

spykes · 02-16-2004, 01:52 PM

what do you think of a rb26dett then :P
btw im like 140lbs it might help if im not even there but ele. id unno man the car got auto pilot?

BuryTheNeedle · 02-16-2004, 03:37 PM

Quote:

Originally Posted by spykes

what do you think of a rb26dett then :P
btw im like 140lbs it might help if im not even there but ele. id unno man the car got auto pilot?

I don't think it weighs much more than a RB25. I'd go for it. If handling is the problem, you can always set up your suspension to accomodate the extra weight. Take out the A/C system even. FRP fenders will also free up weight in the front. Freeing up weight is costly, but so is putting an RB26 in, so why not go all the way.

Var · 02-16-2004, 04:10 PM

i wouldnt go rb26 unless i wanted to either enter it in a show, or push over 500 horsepower or else the KA and SR would do and you'd have a better balanced car.

Ghettokracker71 · 02-16-2004, 04:58 PM

Quote:

Originally Posted by westboroughpimp

i wouldnt go rb26 unless i wanted to either enter it in a show, or push over 500 horsepower or else the KA and SR would do and you'd have a better balanced car.

yeah....I'll agree with that ^^^

jojothemonkey · 02-16-2004, 09:21 PM

I realy havent heard anything bad about venus auto. But here is a post of some one who just bought an rb20 for 1200 from venus auto. Do a search for them on that forum and see what you can find out.
http://www.nissaninfiniticlub.net/fo...ght=venus+auto

PROJECTRB240SX · 02-17-2004, 07:18 AM

Rb20det Weighs 65lbs More Than The Ka24e, While The Rb25det Weighs 180lbs More Than The Ka24de. They Are Both Worth It In My Opinion..... Put It This Way My Rb20det With Fmic Laid 100ft Burnout Starting In Second, Hell I Can Spin Tires Starting In Third. I Had It Up To 105 In Third Gear At 7800 Rpm, It Will Jump From 2k Rpm To 8k In About A Second, It Will Bury You In The Seat The Whole Time And Never Let Up.

TeckniX · 03-30-2004, 08:47 AM

you can also get some awesome deals and really clean engines from http://www.zerolift.com they got tones of goodies!!!

FRpilot · 03-30-2004, 10:55 AM

Quote:

Originally Posted by goofynick6

The RB does NOT weight 180 more than a KA...recheck the facts.

Nick

whoa. jspec will do it for 3500 and jspec is usually expensive, but they are reputable and known for bringing hard to find jdm stuff.

drift freaq · 03-30-2004, 11:26 AM

RB's are cool, but to run it you will have to do some weight compensation upfront. yes Mckinny sells a mount kit. Do they sell a down pipe as well? You have to get a custom downpipe made if not.
Ok break it down, if you have time for your car to sit and want to do a install that essentially is not plug and play then go with the RB. My friend gary(not Mckinny) was one of the first people to put a RB25 in a S14 over three years ago. His words to me were if you want to put in a RB be prepared for at least a month of down time on your car or more.
Dropping a SR in is a plug and play situation. You can have to whole thing done within 2 days to 1 week max. Any shop that takes longer is playing games with you.

02-02-2004, 01:52 PM	#1
hangook Join Date: Jan 2004 Location: canada Age: 41 Posts: 1 Trader Rating: (0) Feedback Score: 0 reviews	RB25DET I searched but is it worth it? Ok, I have been knee deep in the whole RB25DET business, I know all the details and all, but Im still not sure if its worth it. Does anyone know if it is easy to put it up to 350hp? ALso, for all the work I would have to go through sticking the engine in, does the rb really put it out. Im a little concerned being a GTS and not a GTR? thanks for the help

02-03-2004, 07:27 AM	#5
christopher Zilvia Member Join Date: Jan 2003 Location: St. Paul, MN. Midway Age: 41 Posts: 255 Trader Rating: (0) Feedback Score: 0 reviews	It is incredibly easy to get that thing up to 350hp. No internals. I would search google. Also if you want a good idea of what is out there for it, EVERYTHING IS. If I could afford it I would gladly get an RB. Get it for sure, go nuts. You can have a monster. __________________ Anyone from the Twin Cities? http://www.heiruspecs.com/ [email protected] 89 coupe Red top SR Blown Stereo....

02-03-2004, 12:29 PM	#6
mellojoe Zilvia Junkie Join Date: Jan 2004 Location: ARKANSAS Posts: 518 Trader Rating: (0) Feedback Score: 0 reviews	Its going to come down to money, really. Given the money to do the RB25 swap, I think just about everyone on here would do it compared to the SR20. But, most of us DON'T have the $$$ to spring for the kind of setup. But, it would be the preferred motor. And don't forget, McKinney Motorsports has a $500 mounting kit that makes the RB26DETT just about a straight drop-in and you can keep the twin-turbos. But, then again, the cost of the engine alone is more than a complete SR swap done and done. Go for the RB if you can afford it. You will have a beast and a unique driving machine. If you don't want to spend as much money on that type of hobby that is really only worth money to the user and doesn't help the resale on the car much at all, then go for an SR swap. Its a great engine. __________________

02-03-2004, 03:42 PM	#11
fliprayzin240sx Man w/ CTSV & a Car Seat Join Date: Aug 2002 Location: Tampa Posts: 17,998 Trader Rating: (19) Rides Gallery: fliprayzin240sx Feedback Score: 19 reviews	350hp out of an RB is a cake walk. Its like asking to get 350hp out of a VG30Dett. Intake, exhaust, re-chip the bitch to run double boost 16-18lbs and voila ATLEAST 350hp. __________________ If you think Zilvia has too many assholes... CLICK HERE!!!

02-04-2004, 11:01 AM	#12
ultraprince I like APC Join Date: Apr 2003 Location: San Diego, CA Age: 25 Posts: 189 Trader Rating: (0) Feedback Score: 0 reviews	how about cali registration/smog/emmision/carb? is there way around it...while you are ansewring i'm gonna see what i can find on search. __________________ APC OWNZ ME!!!

02-02-2004, 03:56 PM	#2
goofynick6 Leaky Injector Join Date: Sep 2003 Location: blacksburg va Age: 39 Posts: 120 Trader Rating: (0) Feedback Score: 0 reviews	They can make 450whp and hold it easily on stock internals. Making 350 whp is what I plan on, 350-375. Upgraded turbo, injectors, and way to control it (e-manage, safc, or something like that) and some tuning and you'll be set. Nick

02-02-2004, 04:31 PM	#3
RBBaby BANNED Join Date: May 2003 Location: heh Posts: 260 Trader Rating: (0) Feedback Score: 0 reviews	get the rb25det.

02-03-2004, 07:22 AM	#4
93veilside240sx Join Date: Sep 2003 Location: Denver, North Carolina Age: 37 Posts: 24 Trader Rating: (0) Feedback Score: 0 reviews	whether its worth it or not is totally up to you...yeah it has more stock power and can handle more on a stock bottom end...but it also costs more, requires a little more work, and is a little heavier...i was torn b/t the rb25 and sr20 for the longest time, but i decided to stick with the SR...just make sure you weigh every option before throwin out the money for either swap...good luck

02-03-2004, 03:01 PM	#7
BuryTheNeedle Join Date: Aug 2002 Posts: 45 Trader Rating: (0) Feedback Score: 0 reviews	I'm hopefully putting down a deposit on an RB clip sometime this week. The engine weighs about 180lb more than the KA. Relocate the battery, get a CF/FRP hood and you should be good. The power will equal out the weight as well. 250hp right off the bat is great, with the breathing cleared up it should be a tad bit high to say the least. I plan on getting only 300-325 to the rear wheels, so the i'm pickin up a FMIC, aftermarket Intake manifold, and of course 3" piping all the way back. After that maybe a fuel upgrade.

02-03-2004, 03:13 PM	#8
goofynick6 Leaky Injector Join Date: Sep 2003 Location: blacksburg va Age: 39 Posts: 120 Trader Rating: (0) Feedback Score: 0 reviews	The RB does NOT weight 180 more than a KA...recheck the facts. Nick

02-03-2004, 03:23 PM	#9
Ghettokracker71 Post Whore! Join Date: Nov 2003 Location: Don't look now... Age: 34 Posts: 3,327 Trader Rating: (0) Feedback Score: 0 reviews	a local shop told me they'd swap in an SR....turn-key for $5000(including auto->man swap)

02-03-2004, 03:40 PM	#10
BuryTheNeedle Join Date: Aug 2002 Posts: 45 Trader Rating: (0) Feedback Score: 0 reviews	http://www.sportcompactcarweb.com/tech/0309scc_hybrid/ 3rd pic down, it says 720 for the weight of the RB. KA weighs 540.

02-15-2004, 09:03 PM	#16
SR PwrdVA Leaky Injector Join Date: Feb 2004 Location: VA Posts: 52 Trader Rating: (0) Feedback Score: 0 reviews	There's a couple shops in Hampton Roads that'll do an SR swap, and I did mine myself so hit me up if you want any info or pricing. Peace

02-15-2004, 11:15 PM	#17
dekand Leaky Injector Join Date: Mar 2003 Location: Flower Mound, TX Age: 36 Posts: 52 Trader Rating: (0) Feedback Score: 0 reviews	with the prices of sr's and rb's... its really in my opinion not worth it for the sr... (im mainly speaking of s14 sr, because if i did sr thats most likely what id do) but even s13 clips are 2500-3200 from a reputable supplier... i got my rb25 clip for 2900 so you do the math. sure it cost a little more to get it in right because you need a mount kit and driveshaft, but its an inline 6 2.5l vs a 4 banging 2.0 liter... not putting down the sr, but come on its an easy decision to make at least for me anyway... whatever you do just have fun with it and enjoy the car. __________________ No Signatures over 400x200!!

02-16-2004, 02:25 AM	#19
the240sxer95 Zilvia FREAK! Join Date: May 2002 Location: cali cali Posts: 1,322 Trader Rating: (0) Feedback Score: 0 reviews	venus.. i read a few bad things from them.. are those things rumors or are they not a good source for motors...

02-16-2004, 07:49 AM	#20
spykes Join Date: Feb 2004 Location: Brooklyn Posts: 28 Trader Rating: (0) Feedback Score: 0 reviews	i was thinking of getting a rb26dett for my 1989 240sx. but then i have to relocate the battery and remove the stock oil pan change the hood into something lighter. i remember rb26 is like 400lbs heavier and causing the car to go understeer and smash between a wall is a easy thing for it. my friend has a rb25det that thing is a monster. but that thing understeer like a bitch in his 240. so i dunno if i might get the rb26dett as well hehehe RB25DET.org

02-16-2004, 01:52 PM	#22
spykes Join Date: Feb 2004 Location: Brooklyn Posts: 28 Trader Rating: (0) Feedback Score: 0 reviews	what do you think of a rb26dett then :P btw im like 140lbs it might help if im not even there but ele. id unno man the car got auto pilot?

02-16-2004, 04:10 PM	#24
Var Post Whore! Join Date: Sep 2003 Location: Norcal Age: 39 Posts: 5,032 Trader Rating: (0) Rides Gallery: Var Feedback Score: 0 reviews	i wouldnt go rb26 unless i wanted to either enter it in a show, or push over 500 horsepower or else the KA and SR would do and you'd have a better balanced car. __________________ Hi

02-16-2004, 09:21 PM	#26
jojothemonkey Leaky Injector Join Date: May 2003 Location: in that one place where there is stuff Age: 38 Posts: 79 Trader Rating: (0) Feedback Score: 0 reviews	I realy havent heard anything bad about venus auto. But here is a post of some one who just bought an rb20 for 1200 from venus auto. Do a search for them on that forum and see what you can find out. http://www.nissaninfiniticlub.net/fo...ght=venus+auto

02-17-2004, 07:18 AM	#27
PROJECTRB240SX Zilvia Junkie Join Date: Dec 2003 Location: GILBERT, AZ Posts: 304 Trader Rating: (0) Feedback Score: 0 reviews	Rb20det Weighs 65lbs More Than The Ka24e, While The Rb25det Weighs 180lbs More Than The Ka24de. They Are Both Worth It In My Opinion..... Put It This Way My Rb20det With Fmic Laid 100ft Burnout Starting In Second, Hell I Can Spin Tires Starting In Third. I Had It Up To 105 In Third Gear At 7800 Rpm, It Will Jump From 2k Rpm To 8k In About A Second, It Will Bury You In The Seat The Whole Time And Never Let Up. __________________ IF I AM TYPING IN CAPS (LIKE NOW) I AM SORRY BECAUSE I AM AT WORK (DATA ENTRY) AND I HAVE NO CAPS LOCK BUTTON AND NO WAY TO CHANGE MY UPPER CASE LETTERING. SORRY!

03-30-2004, 08:47 AM	#28
TeckniX Join Date: Nov 2003 Location: Cincy Posts: 28 Trader Rating: (0) Feedback Score: 0 reviews	you can also get some awesome deals and really clean engines from http://www.zerolift.com they got tones of goodies!!! __________________ http://www.nismosan.com The answer will soon come! 'If you are still in control.. you've never drift hard enough'

03-30-2004, 11:26 AM	#30
drift freaq R.I.P. Aya, always love Join Date: Nov 2001 Location: Los Feliz/Hollywood Posts: 18,558 Trader Rating: (215) Rides Gallery: drift freaq Feedback Score: 215 reviews	RB's are cool, but to run it you will have to do some weight compensation upfront. yes Mckinny sells a mount kit. Do they sell a down pipe as well? You have to get a custom downpipe made if not. Ok break it down, if you have time for your car to sit and want to do a install that essentially is not plug and play then go with the RB. My friend gary(not Mckinny) was one of the first people to put a RB25 in a S14 over three years ago. His words to me were if you want to put in a RB be prepared for at least a month of down time on your car or more. Dropping a SR in is a plug and play situation. You can have to whole thing done within 2 days to 1 week max. Any shop that takes longer is playing games with you. __________________ "Having a lot of tracks on a song is like putting stickers on a car to get more horsepower" New Video https://www.youtube.com/watch?v=uebV1OnbRsw Buy my mounts! http://zilvia.net/f/sale-items/51531...ns-mounts.html http://zilvia.net/f/tech-talk/317539...e-mouts-6.html

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