6G Celicas Forums

hey guys, back for an update on the competition clutch.

after some investigation, it turns out that this clutch setup that i am currently running consits of a 3sgte pressure plate, and 5sfe disk.
i didnt realize it at the time, but its obvious when you look at the pics above of the disk sitting on the flywheel.
the disk is ~10mm smaller than the flywheel, and pressure plate friction surface.
it shouldnt be like that.
a 3s disk would run right to the edge of the PP and flywheel.
I cant and dont want to put the blame on tweak, he has these drop shipped for him direct from competition clutch, but it is a bit dissapointing to have figured this out a couple months after the clutch has been installed.
on a good note, the clutch is holding 330ft lbs at the wheels without a problem, which is over 400ftlbs at the crank.
lets hope i can get a good couple of years outta this disk.
for you guys that order one of these setups in the future, i would contact your manufacturer directly, and be VERY clear about what you want.

Would it be a big problem though? I'm sure mine should be exactly like yours. I didn't really look at it that well. Isn't it suppose to be 3s disk with 5s spline?

its not a big problem, till i want to actually use a 3s disk.
because the 5s disk is smaller, its gonna wear a groove into the PP and flywheel. i can replace the friction surface on the flywheel, but the PP will be useless.

yes, its supposed to be a 3s disk, with 5s spline.

That sucks, i'll find out when I change my clutch again but until then it sucks knowing I may have to change both. Thanks bro

well, for the guys under 300ftlbs at the wheels, it dont matter much if you use the 5s disk.
hell, for right now, it dont even matter for me.
it would just suck if i wanted to swap out to the E153, while this clutch is still useable. cause i wouldnt have a choice but to change the PP, disk, and flywheel friction surface.

So if I have a 98 GT, swap in a 3rd gen. 3SGTE engine but keep the stock manual transmission...which upgraded clutch and flywheel do I buy for? Do I buy a clutch and flywheel specifically for the stock 5SFE GT transmission, or buy one for a 3SGTE? I'm confused on this one because with my Supra, I had to buy a clutch/flywheel that matches the stock transmission, not the 7MGTE that was swapped in.

This post has been edited by jjbenzo: Jul 27, 2009 - 5:34 PM

use the 3sgte clutch set up and the 5s spline on the disk. the 3s and 5s have much similarities.

This post has been edited by trdproven: Jul 27, 2009 - 5:40 PM

Hey Manny,

Someone just pointed this post out to me via PM. You should have contacted me if this was really the case. Here is the actual email that I sent to CC when I ordered your clutch kit, dated 2-16:

"Please ship one stage 4 clutch kit (3SGTE pressure plate and disc,
5SFE hub, bearing and alignment tool) to:

Manny
****address edited*****

I need this to arrive NO LATER than this Friday, 2-20-09, please ship
accordingly. Also please send me the tracking number information as
soon as it has been shipped. Thank you!

-Doc"

Looking at the pics you posted, that looks normal to me, are you 100% certain that you didn't get a 3SGTE disc? I mean, did you actually measure it?

-Doc

This post has been edited by Dr_Tweak: Jul 30, 2009 - 9:44 PM

interesting that the act clutch uses 4 big springs and the competition uses 6 small ones. wonder what setup is less prone to failure...

doc, like i said, i dont blame you, i know you have them drop shipped from comp.
i didnt have to measure it, i compared it to the ACT 5s disk i pulled from my motor.
they are the same size.
by the time i actually realized it, it was already in the car, and was being used.

Hey, I just came to check on this thread and it looks like my last post got lost in the latest rash of forum crashes.

Long story short, I spoke to CC about it who admitted that they sometimes used the 8.86" disc instead of the 9.29" disc when they were out of stock, since it's still "within spec" for the holding power of that clutch kit. Needless to say I was little upset since the whole point of using the full-diameter 3S disc IS to have the full-diameter disc. They now have been well-informed that they are NEVER to do that again

That said, I've got a free replacement full-diameter disc for you, if you want it. Of course it's already in the car working well so I understand if you don't feel like pulling it out.

For the record, you must ALWAYS resurface your flywheel (or replace the friction surface in your case) when you replace a clutch so the difference in diameter will not effect you going to an full-diameter disc, if and when you choose to (E153 swap or whatever).

Let me know!

-Doc

yea, mine was lost as well.
yea, i always resurface my flywheels when i do clutches, (or just replace the friction surface in my case, like you said.)
i will also have to replace the pressure plate as well if i decide to swap out to the E153, even if its before the PP wears out.
like i said, i knew it wasnt your fault, by any means, so no biggie there, and by the time i figured it out, it had already been installed and driven around on for a while.
the clutch now has a couple thousand miles on it, and a dozen or so track launchs with no issues, and has broken in nicely. (it was very on/off for the first ~ 1000miles, but im sure the lightweight flywheel dont help with that..lol)
hopfully we wont have to pull the tranny for any other reason than to swap to the E153 in the future. lol
thanks for doing the leg work with CC and confirming what i had thought, i appreciate the effort to make sure that things are being take care of.
hopfully i wont have a reason to take you up on the disk offer (although having the spare on hand would be good too), but that is VERY cool of you, and shows your commitment to this community which in this day and age is rare.
thanks tweak.

I smoked the s53 in my car, so in the last week I grabbed a s54 from the yard(for 135 out the door) and am planning to drop it into my 5th gen. I figure while I have it out why not change the clutch(roughly 90k on it) and do a bit of upgrading.
I've already decided that a lighter flywheel is necessary as well as the 3sgte pressure plate/flywheel/disc combo.

Anyways I punched in the competition clutch part number and found they are very vague as to what it fits on most of the sites.
I was curious if I purchase that if it in fact fits the s54 and not just the one shipped from tweak fits(possibly because they swap a few things around)


I can hear it now, everyone telling me it's all overkill for a stock motor. I've determined I don't mind, I've driven a few vehicles with a clutch like this, and the lightweight flywheel is what I wanted but it requires the 3s clutch unless I get something specific to a 5sfe which is not in the budget.
Also like presure2 said, why not just have it ready to recieve e153 splined disc and you're set?

im confused, does the S53 and S54 have different splines?

im was running a fidanza flywheel and Southbend clutch in my 6th gen while i had the turboed 5S in there. I highly recommend a TZ setup for you

http://www.dxdracingclutches.com/html/celica.html

on a quick note i order the same CC clutch from tweak online and had the same problem and when changing it i had lost a spring as well only having 8000 miles on it, I noticed that the clutch slip a lot ,also not engaging ... thinking it was me, unit going to my mechanic still have the clutch . I know that it is on CC end the problem ,