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Kevlar lock up clutch - good or bad

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SuperTTA

Member
Joined
May 28, 2001
Messages
135
Hi all,
I need a torque converter and found a stock stall D5, but it has been rebuilt with a Kevlar lockup clutch. Is this better or worse than the stock lock up clutch?
What are the issues with the Kevlar clutch? if any?
Thanks,
James
 
Bruce....somebody, any advice on this. I am supposed to pick it up this weekend. I do not want to go through the trouble of putting it in if it is a mistake.
Later,
James
 
Well, putting me on the spot why dont you? I dont like to say negative but no Not good and I would never use one.
My 2 cents....

Bruce WE4
 
Bruce,
Sorry about that. Could you at least describe some of the problems people have had with them? Do they wear out quickly? Slip easily? rough engagement? Come apart and send clutch material into the trans? I am thirsting for knowledge.
I do not want to have the guy selling me one to drive 3-4 hrs if I shouldn't buy it.
I do not run my car at the track, this is just street driving. I was looking for a stock D5 with a know history or a rebuilt one and this one is rebuilt.

Why would shops use them? Misinformation?
I tried to do research on the web and all I can find is some use them and some don't. It seems that Yank uses them in their racing converters, but vig. doesn't.
Thanks for responding.
James
 
Kevlar is very hard. It glazes easily. It is "supposedly" a high energy absorbing material. I dont beleive in it , do not use it, and would reccommened against it. Dont take this the wrong way but the "other shops that use them" do not concern me,. Their choice, their product. The new carbon fibre disc we are using is the ultimate. Testing has proven this. Why the big deal? How much could this d5 possibly cost you? Has it ever been in a car?

Bruce
WE4
 
Bruce,
What happens when it glazes? Noise? chatter? chuggle?
The guy bought a car and the trans was just rebuilt. He started doing modifications right away and needed a looser torque converter for his combo and put in a vigilanti. The D5 was used for about 3 months.
Cost is $100 delivered. My wife and I just had a child(3 wks ago) and I got to watch my spending, so I was trying to keep the cost down of fixing it,but I wanted a tc with a known history(and a stock D5 is what I was looking for). I was able to talk to the shop that rebuilt it and found out what they did to the converter....new hub, kevlar clutch, etc.
It just made me mad when I found out I have a D6 in my TTA and it explains my lag off the line. I can't brake torque it past 1400-1500 without busting my tires loose.
BTW, can I buy seals from you for my 200-4r? I need the shifter shaft seal, tv cable seal and the o-rings for the tcc and vss. If I am going to pull the trans to do the tc, I might as well replace the front and rear seals and the dipstick tube seal. Any chance you could sell me a seal kit or the individual seals?
Sorry for the long post. and thanks for the help.
James
 
Sometimes priorities are....

priorities. When we had Kendra, that was the end of my "racing for a living " days. I have since sold everything I had raced including the enclosed trailer. But, I do see your point in getting the car right. For what you are trying to do, I dont see a problem.
It will work for your intended usage.

Bruce
WE4
 
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