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Tomy's Avatar
Join Date: Jan 2002
Location: Porsche World
Posts: 380
Clutch slipping vs high boost

I have such situation in this week. I found that my boost coming just above 0.8 when normally it was max little above 0.7 so it was strange to me. Next day I found that my clutsch slip a little between 4500 to 6500 rpm. Today I drive to make some tests and found that my boost going even near 1 bar! Of course I have clutch spinning feeling too.
What it can be?
I have put Brian free flow exhaust last 500 miles as well as new turbo K7200 too. I take round 400 lbs of weight out too. Could it make such results? By the way I not found clutch smell and I surprise what is going on. Any idea?

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Old 10-03-2010, 11:16 AM
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A930Rocket's Avatar
Join Date: Oct 2003
Location: Mount Pleasant, South Carolina
Posts: 8,722
Try adjusting the clutch, but you may need to replace it. Usually a stock clutch is good to 400 HP, but if you can spring for a KEP Stage 1, give it a try.
Old 10-03-2010, 12:42 PM
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smurfbus's Avatar
Join Date: Aug 2009
Location: Europe
Posts: 1,615
I would first figure out the overboost issue unless it's wanted. Your wastegate boostline could be leaking. The clutch might still grip with the lower boost but maybe now you got addicted for the extra power and don't want to go back? In that case check the fueling so it does not get too lean with the extra air.

Old 10-03-2010, 09:06 PM
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