Re: C900 clutch for 300-400hp? - Saab Performance Bulletin Board - Saabnet.com
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Re: C900 clutch for 300-400hp?
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Posted by 900 Aero [Email] (#425) [Profile/Gallery] (more from 900 Aero) on Fri, 16 Feb 2007 13:30:22 Share Post by Email
In Reply to: C900 clutch for 300-400hp?, Swedey, Wed, 14 Feb 2007 23:48:45
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Hey Nicholas, sounds like a fun car! Your 9" HD clutch from Group9 (early 9000T clutch) is questionable when you reach 300 crankshaft HP. The 9" Center Force that Bryan and Gary mentioned is also the early 9000T version with the stronger disc hub but it wouldn't be a for sure thing if you had 400 HP. The stock clutch with an uprated sachs pressure plate that Chad mentioned would be a great pressure plate for your situation other than it's expensive but you would have to use a '91-'93 disc which has the right spline for your C-900. An original C-900 flywheel can be modified to go this rout or you could use the '91-'93 9000T flywheel and change the timing marks. That uprated sachs pressure plate is a '94 up 9000T application with a smaller flywheel and ring gear but it is the same bolt pattern as the mid year 9000T so it will fit with the mid year disc which is in fact the same thickness. I've done this combo before and the drive-ability is near stock plus you could never overpower this pressure plate even with the mid year OEM disc. The multi disc clutch that Steve Y mentioned would fit your needs but it's not necessarily meant for a street driven vehicle. Steve Y and Damien S both have experience with these clutches on the street so maybe they could say for sure? Hope this helps, Dave

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