New Race Clutch installed, am i Wrecking my car?

[Garyafc]

Hey have a question guy's, this a bit hard to explain, but my car is in Ireland, i live in Holland and am in Singapore at the moment, so cannot really comment or give what little knowledge I have!! The car has been off the road for the last 8 or so months but got the clutch changed out this weekend and this is the feed back i got from my friend, who changed the clutch.

 

The Exedy clutch you supplied was severely a race clutch ( very very extreme, similiar to a gt car!!!) there is no damper absorption whatsover!!, it must be driven in an on/off style no slipping or easing out clutch, it will quickly destroy the clutch. Anyway getting back to fact that there is no shock absorption it means a lot of shock gets transferred into gear box, higher damage possibility must be warned, anyways it is sending a large amount of vibrations through your box leaving a large backlash noise from box, it is simply down to the fact that there is no damping effect there anymore, in your case it seems louder than i have seen before, think maybe gearbox oil check/change or if it is possible to try a heavier race oil maybe?

 

So to me the prognosis is not great, just wondering if anyone has had any experience with this, will it be ok if I change the oil or should i just put a totally different clutch in. Now ill not be driving it for another few months and have plans for a single conversion in the near future, hence the big badboy clutch.

 

All info and help is greatly Appreciated

 

Gary

[bignum]

Not being funny but it sounds like your friend has little knowledge also, talking about putting heavier oil in your gearbox is 1 way to wreck it, if you are going to use the car as a road car i would think about a different clutch, what sort of power are you going for in the near future?

[Garyafc]

Did not really want to put a number on the power but was looking for anywhere in the 500+ range, i know the cluch is more than likely overkill for that sort of power but you never now what the future holds and i don't want it to be a limiting factor!

[Gaz6002]

Last time I had a clutch rated way over my power level my diff didn't last very long.

[Tricky-Ricky]

I think the one thing being forgot is the fact that the std Supra clutch does not have the usual inbuilt shock springs, due to having a dual mass flywheel, and so relies on the flywheel to absorb any transmission or clutch shock.

 

So the first question is, did this clutch come with its own flywheel?

[Terminator]

I think you will find there are many of us on the forum running high power through unsprung clutches and single non-dampened fly wheels, with out any problems. It just takes a little more skill to drive it and will not make any allowance for poor driver technique. With a sprung clutch you can get away with awful habits for ages before the clutch rebels. Not criticising your friend, but are you sure he is competent to do the job, as a properly fitted fly wheel and clutch should not in themselves cause the problems he describes. As has been said,leave the oil alone.

Edited November 9, 2010 by Terminator (see edit history)

[Garyafc]

Yes i think he is perfectly competent in doing this job, he may not work on a lot of supra's but he is a mechanic by trade and has done good work for me and other I know in the past. I will as him if he had any difficulties but he never mentioned anything!

 

And yes the flywheel came with the clutch.

[Digsy]

And yes the flywheel came with the clutch.

 

That explains the extra drivetrain noise then. You've lost all the damping effect of the stock dual mass flywheel.