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Clutch replacement - Rubber Hub vs Spring Hub?
In the process of buying parts for my winter project.
Since engine is going out, I might as well replace the clutch. I see that there is both clutch disc with rubber and spring hub. I guess rubber hub is old technology. What is you suggestion for a slightly modified 930 ? (SC cams, K27-7200, 1bar, rarlyl8 dual out muffler) Should I go with Sachs, or could I go for aftermarked clutches like Borg Warner or Beck Arnley? |
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sudo apt-get purge 930
Join Date: Jul 2006
Location: Brandon, FL
Posts: 4,838
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Do NOT use the rubber centered clutch, they fail. That's why Porsche went back to spring centers after only a short run.
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Mark 1979 930 Euro ***GONE AND DON'T MISS IT AT ALL*** "Worrying about depreciation on your car and keeping mileage down is like not ****ing your girlfriend so her next boyfriend finds her more appealing" --clutch-monkey |
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Join Date: Feb 2008
Location: Marietta GA
Posts: 2,560
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Don't put a rubber centered clutch back in it. I just went through the same process and used the following parts. This setup is supposed to be good to 500ft lbs of torque.
Stock flywheel Kennedy Engineered lightened pressure plate Kennedy Engineered street organic spring centered clutch |
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+1 for the Kennedy pressure plate. The other parts are fine stock for your HP.
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2014 Cayman S (track rat w/GT4 suspension) 1979 930 (475 rwhp at 0.95 bar) |
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Join Date: Jul 2008
Location: Central Washington State
Posts: 4,415
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+2 for KEP PP. A good Sachs spring centerd disc works well in combination.
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Mark H. 1987 930, GP White, Wevo shifter, Borla exhaust, B&B intercooler, stock 3LDZ. |
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Join Date: Oct 2003
Location: Mount Pleasant, South Carolina
Posts: 14,513
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I think you can use a stock clutch assembly (with the spring centered disk) with your set up. I used it for years of track use without problems. Only when I was at 400 rwhp did I nlgo to a KEP stage 2 set up due to the clutch slipping under high load.
Last edited by A930Rocket; 09-30-2009 at 10:24 AM.. |
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Who has the best prices for KEP PP ?
Or a good deal on Sachs or other recommended clutch kit. Last edited by totle; 09-30-2009 at 01:51 PM.. |
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Join Date: Jul 2008
Location: Central Washington State
Posts: 4,415
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I'm not sure if Kennedy Engineered Products utilizes any distributors for their products....maybe someone knows otherwise. I bought direct from them. Great people to deal with.
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Mark H. 1987 930, GP White, Wevo shifter, Borla exhaust, B&B intercooler, stock 3LDZ. |
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Thanks Mark, sent them an e-mail
Mark, how is the car acting with this clutch. More race lilke, or smooth as original sachs clutch? |
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Join Date: Oct 2003
Location: Mount Pleasant, South Carolina
Posts: 14,513
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Yes. You can get a stage 1 that has more or a stage 2 at the same price for even more clamping force.
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Join Date: Jul 2008
Location: Central Washington State
Posts: 4,415
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No real noticeable difference vs. the stock Porsche PP. Maybe a little grabby during the first few miles of new, but it quickly settled down. Very nice.
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Mark H. 1987 930, GP White, Wevo shifter, Borla exhaust, B&B intercooler, stock 3LDZ. |
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