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Old 09-27-2005, 10:11 AM   #1 (permalink)
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School Me!!!!!

Ok guys/girls ...I need you to school me in supra/lexus drivetrains. I'm in the process of a major project that will be using a supra/lexus drivetrain. I need to know what set up I should choose. This is going to be a drag car...so i'm not really considering convenience. Is the 5 spd or 6spd transmission better. Which tranny has the better gear ratio for drag. Is there a large difference in strength between the turbod and nonturbod trannys? I also need to know the year of the cars I can get the transmission you suggest out of.

I need the same schooling regarding the rearend. Which one is best/strongest. Does it come with an lsd? Once I get this rear end what lsd or spool do you recommend? Keep in mind I dont care what yeart supra or lexas..it could be a 2nd gen or 3rd gen. I need more than one option from best to worst for the transmission and rear end.

Last but not least...what problems to look out for with the drivetrain given.

You guys will be a big help if you could answer these questions.

Please no flamers.....and questions are welcomed.
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Old 09-27-2005, 02:39 PM   #2 (permalink)
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Quote:
Originally Posted by Sisqo
Ok guys/girls ...I need you to school me in supra/lexus drivetrains. I'm in the process of a major project that will be using a supra/lexus drivetrain. I need to know what set up I should choose. This is going to be a drag car...so i'm not really considering convenience. Is the 5 spd or 6spd transmission better. Which tranny has the better gear ratio for drag. Is there a large difference in strength between the turbod and nonturbod trannys? I also need to know the year of the cars I can get the transmission you suggest out of.

I need the same schooling regarding the rearend. Which one is best/strongest. Does it come with an lsd? Once I get this rear end what lsd or spool do you recommend? Keep in mind I dont care what yeart supra or lexas..it could be a 2nd gen or 3rd gen. I need more than one option from best to worst for the transmission and rear end.

Last but not least...what problems to look out for with the drivetrain given.

You guys will be a big help if you could answer these questions.

Please no flamers.....and questions are welcomed.
In what? Give me years or cars or something. All you've said so far is "what's best" and we can assume you only mean among EVERYTHING. I don't think anyone here is qualified to answer that question.

However, my vote goes to either the R154 or the V160. (Mk3 T 5spd, and Mk4 TT 6Spd, respectively).
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Old 09-27-2005, 03:45 PM   #3 (permalink)
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2nd gen and 3rd gen supra and it's lexus counter parts. The reason i'm mentioning the lexus is because it might be easier to find one in a junk yard. But lexus rear end or tranny gear ratio might be different due to it being more lexury than sport car compared to the supra.

I hope this helps.
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Old 09-27-2005, 04:41 PM   #4 (permalink)
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Neither 2nd nor 3rd gen had Lexus equivelants.

So, you've got the Toyota parts. R154 (Turbo Tranny), W58 (N/A Tranny) and their associated rear ends. The Turbo's all had LSD, and N/A's with the 'Sport Package' did as well.
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Old 09-27-2005, 04:55 PM   #5 (permalink)
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If all you are going to do is drag then go with the 2JZGTE (MKIV Supra) with a monster turbo system. There is nothing out there that can catch it. 2JZ powered cars are dominating compact drag racing. I would use an auto trans. You just can't beat the shift speed. I wouldn't use a LSD for drag. Just get a spool. Less to break.
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Old 09-27-2005, 05:49 PM   #6 (permalink)
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I won't be draging a supra...only using it's drivetrain parts. I'm substituting for a weak current set up.

So then you guys do not recommend the 2nd gen supra drivetrain?

Last edited by Sisqo; 09-27-2005 at 06:09 PM.
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Old 09-27-2005, 05:53 PM   #7 (permalink)
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or is the r154 the mk3 tranny. Keep in mind i'm new to the supra world. didn't some of the mk4 supras have 5 spd trannys?

Last edited by Sisqo; 09-27-2005 at 06:06 PM.
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Old 09-27-2005, 06:04 PM   #8 (permalink)
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wait I understand now the mk3 supra is what i'm calling "2nd gen" and is the boxy style looking supra. and mk4 is the most current supra.

So I would be ok with going with the mk3 5spd tranny or the mk4 6pd tranny. But which one would be best for holding the power...or which would break first considering there was no manufacturer defects in either. So all the turbo'd supras come with lsd's. Which rear end would more likely gernade first the mk3's rear end or the mk4's rear end.

I know this is alot of newbie questions..but please be patient. I'm currently a virgin when it comes to the toyota world.
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Old 09-27-2005, 08:49 PM   #9 (permalink)
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The MK III and MK IV both have plenty strong drive trains.
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Old 09-27-2005, 09:04 PM   #10 (permalink)
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Other than the engines, in the 3rd gen and 4th gen turbo cars, the trans and rear diffs are for all intents and purposes equally strong, in that nobody's found a true "upper limit". Both have LSD's available, the 3rd gen being a clutch type and the 4th gen had a torsen. Rare, but available is a torsen for the 3rd gen, but it is found to be limited to low 400hp before the housings start cracking.
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Old 09-28-2005, 01:55 AM   #11 (permalink)
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Quote:
Originally Posted by bgrieger
Other than the engines, in the 3rd gen and 4th gen turbo cars, the trans and rear diffs are for all intents and purposes equally strong, in that nobody's found a true "upper limit". Both have LSD's available, the 3rd gen being a clutch type and the 4th gen had a torsen. Rare, but available is a torsen for the 3rd gen, but it is found to be limited to low 400hp before the housings start cracking.
humor me please...
how does a clutch type work? and what is a torsen? i read about it on sf.com some guy had one and it was in pieces because he was pushing too much hp through it...what is the difference? how do you have a clutch type lsd? Sorry to rob your post sisqo, but i've always wondered...so nows my chance...
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Old 09-28-2005, 10:50 AM   #12 (permalink)
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Quote:
Originally Posted by ahmedootie
humor me please...
how does a clutch type work? and what is a torsen? i read about it on sf.com some guy had one and it was in pieces because he was pushing too much hp through it...what is the difference? how do you have a clutch type lsd? Sorry to rob your post sisqo, but i've always wondered...so nows my chance...
Here ya go:

Clutch Type LSD - Read

Torsen Diff. - Read
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Old 09-28-2005, 10:59 AM   #13 (permalink)
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Quote:
Originally Posted by bgrieger
Other than the engines, in the 3rd gen and 4th gen turbo cars, the trans and rear diffs are for all intents and purposes equally strong, in that nobody's found a true "upper limit". Both have LSD's available, the 3rd gen being a clutch type and the 4th gen had a torsen. Rare, but available is a torsen for the 3rd gen, but it is found to be limited to low 400hp before the housings start cracking.
Wow...thank you thank you. That was pretty much all I needed.. a pretty simple answer to a simple question. I think I will go for the 3rd gen set up..because it's easier to come by. I will probably just put a spool in the rear end to decrease the things that break.

Is there anything I should look forward to failing in the tranny at a given horspower? and is there a fix?

The supras have a hydralic slave cylinder ....correct?

Thank you again for everybodys help...and sorry for the misunderstanding with my questions.

Maybe if we get enough info in hear we could make this a sticky.

Small question to clear up.....is the Getrag transmission considerd the mk4 6 spd tranny?
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Old 09-28-2005, 11:16 AM   #14 (permalink)
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Quote:
Originally Posted by Sisqo
Wow...thank you thank you. That was pretty much all I needed.. a pretty simple answer to a simple question. I think I will go for the 3rd gen set up..because it's easier to come by. I will probably just put a spool in the rear end to decrease the things that break.

Is there anything I should look forward to failing in the tranny at a given horspower? and is there a fix?

The supras have a hydralic slave cylinder ....correct?

Thank you again for everybodys help...and sorry for the misunderstanding with my questions.

Maybe if we get enough info in hear we could make this a sticky.

Small question to clear up.....is the Getrag transmission considerd the mk4 6 spd tranny?
R154's SUPPOSEDLY give up the ghost after 700-ish HP. Not too many have gotten the chance to test it's limits. It's pretty damn bulletproof. Synchro's (like every other manual tranny) are most frequently beaten and abused though. I threw in some Redline MT90 Tranny fluid and it helped greatly. I've not heart of many issues (if at all) with the clutch slave cylinder.

The Mk4 Turbo Tranny is the V160 Getrag transmission, Yes. The Mk4 N/A Tranny is the W58, same tranny that they used in the Non-Turbo Mk3's just with different positions for the shifter and such.
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Old 09-28-2005, 12:50 PM   #15 (permalink)
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Quote:
Originally Posted by Jeeves
The Mk4 N/A Tranny is the W58, same tranny that they used in the Non-Turbo Mk3's just with different positions for the shifter and such.
And the MKII's, for that matter...
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