I have a wild idea....

Discuss the RB20, RB25 and RB26 series engines.
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dmora
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S14 + RB26 + R34 bell housing + Supra Getrag 6sp transmission.:help:

I could not find any info on this, so i presume no one has tried it. I know people have tried RB engines into 240s, but what about the transmission? Does everyone use the stock 240 transmission or do they go with 300z/r32/r33 transmission?

Since the R34 uses a Getrag and it is identical to the Supra Getrag except for the secondary output shaft for the front diff and drive line. The Supra Getrag has been a proven transmission in the Supra community, holding ungoldy ammounts of power with out breaking. But im curious how bad it would be on a 240. I believe it will be much bigger and heavier than the stock transmission so there will need to be some work done for mounting. Im curious if there will need to be any pounding done on the trans tunnel to make that SOB fit too?

Any ideas?:)


chachi longshot
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I hope you got cash flowing out your a$$ for that. Not sure how much they go for, but I've heard supra trannys are VERY expensive.

And when for an RB swap people use the RB transmission. Makes it easier than trying to find a seperate one, cheaper too.

veilsideS14
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The transmission would be too long for the shifter to line up. You'd have to make some custom linkage to get it to work. Other than that and probably 1000 other fitment/customization issues, it'd work.

Redline240
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Just use the RB25 transmission...

Redline

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float_6969
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I don't think I've ever heard of anyone having problems with the RB25 transmission. Nissan makes good strong stuff, and I think that transmission will be fine.

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dmora
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The trannies in the GTR has a nasty habit of blowing the 3rd gear syncro at around 500hp. This is why Skyline owners have to upgrade to a Hollinger or something like that when making big power.

The reason i want the Supra transmission is because i know it would not blow up on me. Veilsides14, i was planning on using the Supra shifter and everything with the transmission. Do you mean it wont line up with the tunnel or the hole for the shifter to go throught the floor?

YamaOni
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dmora wrote:The trannies in the GTR has a nasty habit of blowing the 3rd gear syncro at around 500hp. This is why Skyline owners have to upgrade to a Hollinger or something like that when making big power.

The reason i want the Supra transmission is because i know it would not blow up on me. Veilsides14, i was planning on using the Supra shifter and everything with the transmission. Do you mean it wont line up with the tunnel or the hole for the shifter to go throught the floor?


I would guess that GTR'S blow their missions because they are throwing an *** lode of power to four wheels instead of just two. And I might be wrong but I think that the R34 GTR came with the a Getrag transmission. I will check into that.

nlzmo400r
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well i know supra transmission's can take an ungodly amount of hp withuot blowing, however id use the s13 cause its lighter, just me

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dmora
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YamaOni wrote:I would guess that GTR'S blow their missions because they are throwing an *** lode of power to four wheels instead of just two. And I might be wrong but I think that the R34 GTR came with the a Getrag transmission. I will check into that.
The R34 does use a Getrag. However it has a secondary outputshaft to drive the front wheels. Thats why i would use a Supra Getrag because it does not have the secondary output shaft.

YamaOni
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Its your money, But I have seen some pretty sick R33's (and not GTR's) Run just the stock transmission. I would think your plan will cost more in the long run then just using a R33 transmission with a cross gear set from trust or route 6. A friend just got a good used Route 6 cross for about $2000 all ready to drop in.

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dan240
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HA HA Dmora's using the internet!!!1dude, why dont you ask nightmare or merli about it? I saw the same **** you did with nightmare or somebody blowing up their transmission and then switching the hollinger dog box, but how common is this problem??? is it widely documented or was it just a few cases? In any case, the RB25det's transmission should be fine.... i think?

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dmora
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dan240 wrote:HA HA Dmora's using the internet!!!1dude, why dont you ask nightmare or merli about it? I saw the same **** you did with nightmare or somebody blowing up their transmission and then switching the hollinger dog box, but how common is this problem??? is it widely documented or was it just a few cases? In any case, the RB25det's transmission should be fine.... i think?
:wavey: HA HA I FOUND TEH 240 BOARDS!!!1

Yea, Rich blew up his transmission 2x i believe and went to a pfitzer or something like that. All R33 and R32 trannies have a bad 3rd gear syncro. There were some very early model R32s which didnt have it as bad. THe problem only occurs if you are ripping the gears. If you baby it , it should be fine, but who wants to baby a car with 500hp.:thinker

ZERO
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I know somebody who babies a 500hp car. My girlfriend's dad he has an 87 Porsche 930 with the Le Mans 4 speed manual transmission. He has 500+ HP. He told me that when you have that much power you dont really need to abuse the transmission the engine has enough power to get you where you need to be without abusing of your car.

Trust me I was in the car with him once he was right...and last time I spoke to him he told me that he had installed new equal length exhaust manifolds. that thing has to be well over the 500hp mark already.

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I have driven and been in a few 600 + hp rb26 powered cars most use the rb25 transmission but a few who drag race quite a bit use the os gear set or a hks or trust one . I ahve heard of a supra 5 speed beeing hooked up to an rb25 so it can be done with out to much work its the position where the shifter comes out that worries mecheersmaggala

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dmora
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YamaOni wrote:Its your money, But I have seen some pretty sick R33's (and not GTR's) Run just the stock transmission. I would think your plan will cost more in the long run then just using a R33 transmission with a cross gear set from trust or route 6. A friend just got a good used Route 6 cross for about $2000 all ready to drop in.
I can get a full Toyota Getrag 6sp transmission for less than that. I'd rather have a 6sp than a 5sp ;)
meggala wrote:......... I ahve heard of a supra 5 speed beeing hooked up to an rb25 so it can be done with out to much work its the position where the shifter comes out that worries mecheersmaggala
I would be using the 6sp since its a stronger transmission, and better geared than the 5sp toyota transmission :)

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dan240
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dmora, since you got rid of the poopra, u gonna get the S14/rb26 fo shizzle??/ Have u ever thought bout just shovin in an rb25det? or do you wanna go the full monty and get the 26?

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dmora
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dan240 wrote:dmora, since you got rid of the poopra, u gonna get the S14/rb26 fo shizzle??/ Have u ever thought bout just shovin in an rb25det? or do you wanna go the full monty and get the 26?
it would be the same price basically. I might as well just get the RB26.

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nlzmo400r wrote:well i know supra transmission's can take an ungodly amount of hp withuot blowing, however id use the s13 cause its lighter, just me


S13 is not lighter... it simply depends on the model of the car. The S13 is also BIGGER than the S14 (longer but not wider) and the chassis on the S13 is weaker. Now explain why you would use an S13 to put a RB26 into it when you know you need engine space and chassis rigidity to keep the damn car in one piece.

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Daniel,

RB26 + Miata + 28x12.5s :D

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Also Daniel, I got my motor sitting in Houston ready for a new home (my S14). Tri seems like he will never get his car together, but if he does. Austin will have three RB26 powered S14s.

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WDRacing
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Just use heavy wt transmission fluid in the RB25 mission, For that matter I know alot of guys who drag they're GTRs with over 500hp that use heavy wt and have no problems.

For the record, I think you should do just for the 6 speed.

WD

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dmora
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Nismo_Freak wrote:Also Daniel, I got my motor sitting in Houston ready for a new home (my S14). Tri seems like he will never get his car together, but if he does. Austin will have three RB26 powered S14s.
I heard he gave up since it was not going to plan?

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dmora
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WDRacing wrote:Just use heavy wt transmission fluid in the RB25 mission, For that matter I know alot of guys who drag they're GTRs with over 500hp that use heavy wt and have no problems.

For the record, I think you should do just for the 6 speed.

WD
Yea, I really like the Toyota getrag. Since i owned one ive been spoiled :D

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McAdam
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want a sick car and still stay nissan? RB26DETT+240z. and if you get an early 70 or 71 Z, they weigh about 2200lbs. but then with chassis re inforcement, probably about 2300lbs! go to hybridz.org and look for stony. sick car. sick sick sick.

cheers,McAdam

Nismo_Freak
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dmora wrote:I heard he gave up since it was not going to plan?


Same here... now I think he is going after a 2JZ ... but I haven't talked to him about it recently.

projectsr
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Nismo_Freak wrote:Daniel,

RB26 + Miata + 28x12.5s :D


BAH!! RB26 + hardbody Nissan Truck :oy: :oy: :oy: :oy: :ylsuper

projectsr
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Nismo_Freak wrote:Also Daniel, I got my motor sitting in Houston ready for a new home (my S14). Tri seems like he will never get his car together, but if he does. Austin will have three RB26 powered S14s.


Better get to it then. Welcome to the new bandwagon. :oface

Cant even beat a near stock s13 coupe lol. :cool:

stony
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thanks for teh props mcadam... the motor is for sale if anyone is interested:D

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rbsileighty
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dmora wrote:I can get a full Toyota Getrag 6sp transmission for less than that. I'd rather have a 6sp than a 5sp ;)


I ran across one for about 1900 a couple of months ago (one of the guy that did the auto/man swap off MKIV.com was selling his extra). Who is doing all of the custom work? If you are doing the work yourself it might be less, but otherwise I'd just go with a Jerico... the road racing 5spd has a huge range of gears to choose from, weighs 80lbs, and can handle 800+ hp (sure tq isn't far behind... info from when I spoke with them on the phone a few years ago).

Jobber Price: $5,500.00Optional 5.5" Bellhousing Extension Kit (#55BXA): $450.00Optional Rail Type Shifter (#MVRAIL): $695.00Shifter Kit (#5SSK): $225.00

http://www.jericoperformance.com/4.html

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93RPS13
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toyota 6 spd...hmmmm interesting


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