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Discussion Starter #1
I used to be running a top secret prototype ceramic disk in my truck, but the problem was I would grab too hard. I could not start off smooth, and I would get wheel hop like mad.

Anyway, I decided to try a stock disk. I put one last saturday, and well, I need a new disk already. I am thinking about using a new compound for the disk, but it is getting expensive.

Who do you think makes a good disk that will hold up?
 

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A fluid one = Torque Converter <IMG SRC="smilies/laughing.gif" border="0"> <IMG SRC="smilies/biggrin.gif" border="0">
 

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Originally posted by SuperRunner:
<STRONG>I used to be running a top secret prototype ceramic disk in my truck, but the problem was I would grab too hard. I could not start off smooth, and I would get wheel hop like mad.

Anyway, I decided to try a stock disk. I put one last saturday, and well, I need a new disk already. I am thinking about using a new compound for the disk, but it is getting expensive.

Who do you think makes a good disk that will hold up?</STRONG>
Here is what Reg Riemer did to hold 400 RWHP in his MKII Supra....

To meet the clutch slip problem face to face, I purchased a beefed up full metallic race clutch built from the pressure plate used in the Lexus SC300. This is the same body style as the SC400 but has the 2JZ-GE non turbo engine rather than the Lexus V8 engine. This six-cylinder engine is cousin to the 2JZ-GTE twin turbo engine in the current body style Supra twin turbo. Toyota still uses the W58 5 speed behind the 2JZ-GE engine in the new 1996 Lexus coupes and 1994 and newer Supra non turbo. I love the way they keep using parts proven to work, this makes it easy for hot rodders like me who need to work with the older models that are not the latest technology. The W58 transmissions are behind every no turbo 7M and 2JZ engine Toyota ever made.

The Lexus 2JZ-GE clutch is reworked and modified by Clutch Masters in California, Chris at Clutch Masters modifies the Lexus clutch with a number of tricks, they use a 50% area full brass disc as well as a host of mods {company secrets} to the pressure plate. It feels the same in the pedal pressure department but comes on very firm, you have to be a little careful leaving intersections quickly, as to not put rubber on the road and get into trouble with the Police Department. This clutch holds my 7M-GTE to the Supra GTE's drive train with no sign of slip.


You obvously are not using a W58 Tranny but I thought you could look up that company he mentions and see if they can help, or give you ideas about compounds etc...

Oh yea......Automatics Suck!!!! <IMG SRC="smilies/thefinger.gif" border="0"> <IMG SRC="smilies/thefinger.gif" border="0">
 

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Discussion Starter #5
Cool, I have read a lot of reg's stuff, but never that. I will look into it. I may not be using the W series tranny, but I am using the W series Flywheel, PP and disk.
 

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Are you using a sprung or solid hub disk? Are you using a heavier press plate? If you are trying to get it to grip with a disk only that's part of the problem. I got a press plate and four puck solid disk from Clutch Specialties for a track only Z car(turbo w/lotsa boost). I have no problems getting it rolling, doesn't to grab hard, and have never had it slip. It wasn't too much either, around $150 I think. You probably already know Centerforce clutches are crap and designed for basicaly stock motors. I don't know what makes a good disk but I know mines got about 200 road racing laps and is still doing good.
 

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There are many companies that have good clutches I have a ACT racing clutch in my civic and its hard to launch on the street.
It just wants to be dumped from like 3grand and it never slips just tires.
L&S Automotive Products
Clutch Masters
Exedy racing Clutches
ACT
Clutch Specialties
Thats all I can remember right now
 

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Discussion Starter #8
The clutches I am using are ment to work with the stock pp. In a supra, this ceramic disk is awsome with a stock pp. It is a sprung hub, maybe I should have them put different springs in it. Again, this clutch was made for a car. I don't want to pay for an aftermarket pp either, they cost too much, and the stock one has plenty of pressure when used with the correct disk. I have run 500hp and at 60mph I could drop the clutch from 6,000 rpm and chirp the tires.

Thinking about it, I might try that SC300 setup, or try another prototype.

Originally posted by Clifton:
<STRONG>Are you using a sprung or solid hub disk? Are you using a heavier press plate? If you are trying to get it to grip with a disk only that's part of the problem. I got a press plate and four puck solid disk from Clutch Specialties for a track only Z car(turbo w/lotsa boost). I have no problems getting it rolling, doesn't to grab hard, and have never had it slip. It wasn't too much either, around $150 I think. You probably already know Centerforce clutches are crap and designed for basicaly stock motors. I don't know what makes a good disk but I know mines got about 200 road racing laps and is still doing good.</STRONG>
 

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two notes. Travis was looking into some seramic setup for his <IMG SRC="smilies/rolleyes.gif" border="0"> high powered ride but it may actually work for him. today is $$payola day and he is aching for gear setup, make a call and get two birds. 487-1985, btw nice phone.
 
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