SC 2gr with S54 transmission problem - MR2 Owners Club Message Board
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post #1 of 13 (permalink) Old August 16th, 2019, 18:06 Thread Starter
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SC 2gr with S54 transmission problem

Hello guy,

So looking for some recommendations for a clutch disk and pressure plate to work with a Fidanza flywheel.

What is currently in the car is a Act stage one, and that is slipping.

I have been told that the engine is making to much torque to quickly and that is why the clutch is slipping. About 300ft lb at 1800 rpm.

Specs on my car is:

SW20 95 JDM NA swapped with a TRD 2gr-fe from a Aurion using the S54 that came with the car.

Dont want to switch to a E153 because S54 only has 23k on it and i cant afford a new tranny right now.

Any help is appreciated.

Thank
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post #2 of 13 (permalink) Old August 16th, 2019, 20:02
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Southbend. You can find them on primedriven or elsewhere for the s54
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post #3 of 13 (permalink) Old August 16th, 2019, 20:27 Thread Starter
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Thanks for the info,

I saw a clutch on Southbends website that was rated for 600Ftlb.

One of these clutches would work no matter how fast the torque came on as long as the clutch is rated higher than what the engine can produce right?

Last edited by hk-en-; August 16th, 2019 at 20:37.
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post #4 of 13 (permalink) Old August 17th, 2019, 03:46
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The higher the torque rating the less street able the clutch will usually be. A smaller diameter clutch (S54 v E153) that will hold truly hold 600 ft/lbs will be much stiffer and have a lot more bite. If it's a street car, I would only run enough to get the job done with a little extra margin. A puck disk with even a stock PP will hold a lot more but then you have the quick engagement.
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post #5 of 13 (permalink) Old August 17th, 2019, 12:36 Thread Starter
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I just want to make sure that there is a clutch what will definitively work in my setup.

Thank you for the help

This puts me more at ease and im not going crazy.
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post #6 of 13 (permalink) Old August 17th, 2019, 18:27
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Southbend Stage 2 - Endurance. I've been loving this clutch for quite a few years now. I've also got a 2gr that I've had supercharged for the last year and a half.
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post #7 of 13 (permalink) Old August 17th, 2019, 21:06
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I think South Bend can make you a custom clutch to whatever spec you want. Just call them up and ask.
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post #8 of 13 (permalink) Old August 17th, 2019, 21:33
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Basically you need a V6/turbo pressure plate with a S series friction disk. Southbend or Clutchmasters can both do that. For the most part their pressure plates are the same, and they vary the friction disk material and/or full-face vs. pucks to achieve higher torque rating.
And since nobody else has mentioned this... the conventional wisdom is that the S54 will not survive long behind a 2GR, much less a supercharged one. Please let us know how it survives.
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post #9 of 13 (permalink) Old August 18th, 2019, 01:56
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Quote:
Originally Posted by JimKing View Post
And since nobody else has mentioned this... the conventional wisdom is that the S54 will not survive long behind a 2GR, much less a supercharged one.
Ssshhhh... we were all trying to keep this a secret.
JimKing and Drag0nz75 like this.
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post #10 of 13 (permalink) Old August 18th, 2019, 19:49
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Save up for an E-153 trans,,, and a better clutch. And turbo axles.
Your 2gr is writing torque cheques that your existing transmission can't cash.
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post #11 of 13 (permalink) Old August 19th, 2019, 11:10 Thread Starter
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Quote:
Originally Posted by immorality View Post
Southbend Stage 2 - Endurance. I've been loving this clutch for quite a few years now. I've also got a 2gr that I've had supercharged for the last year and a half.
That is the clutch i am planning on purchasing as well. You have the Fidanza flywheel as well right?

Quote:
Originally Posted by merryfrankster View Post
I think South Bend can make you a custom clutch to whatever spec you want. Just call them up and ask.
Thanks ill be calling them shortly to pick up a pressure plate and clutch. The Stage 2 Endurance that Immorality mentioned look to fit my needs.

Quote:
Originally Posted by JimKing View Post
Basically you need a V6/turbo pressure plate with a S series friction disk. Southbend or Clutchmasters can both do that. For the most part their pressure plates are the same, and they vary the friction disk material and/or full-face vs. pucks to achieve higher torque rating.
And since nobody else has mentioned this... the conventional wisdom is that the S54 will not survive long behind a 2GR, much less a supercharged one. Please let us know how it survives.
Yes i know that S54 is not going to hold up forever, just hope that the low KM and taking it easy on the throttle can keep it running until i can swap to a E135 or 6-Speed Transmission.


Quote:
Originally Posted by sarnodude View Post
Save up for an E-153 trans,,, and a better clutch. And turbo axles.
Your 2gr is writing torque cheques that your existing transmission can't cash.
Yup that is the plan and hoping that the development for the 6-speed conversion completes so i can get that.
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post #12 of 13 (permalink) Old August 19th, 2019, 18:13
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Quote:
Originally Posted by hk-en- View Post
That is the clutch i am planning on purchasing as well. You have the Fidanza flywheel as well right?
Yes, that's correct.
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post #13 of 13 (permalink) Old August 19th, 2019, 18:13
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Woodsport has a six speed conversion: https://www.imoc.co.uk/forums/viewtopic.php?t=174885
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