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Old 03-15-2018, 01:55 PM   #1
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Join Date: Oct 2017
Location: Portland OR
Posts: 100
Update:
We used this clutch kit because it's cheap and seems 'good enough':
https://www.europaparts.com/clutch-conversion-kit-52405618-valeo.html
All bits fit and the only thing needed is a 3mm spacer behind the flywheel to get the starter ring to clear when the drive gear is retracted. This will leave 7mm of flywheel bolt thread engaged in the crank with the included 30mm flywheel bolts and I want at least 12mm. I will either recess the flywheel 5mm or get longer bolt. I like the idea of recessing the bolt holes because the steel flywheel is very heavy and I plan on machining 8mm off the thickness of the entire flywheel to remove weight. There is plenty of travel on the throw out bearing, will actually be closer to the stock Boxster throw if the stack was reduced by 8mm. I'm guessing this will drop 4 lb. and still allow use of the OEM style clutch disc and pressure plate for rebuilds so cheap running cost once we are done. Keeping the motor NA should mean the clutch should be plenty robust for a lightened race car build...fingers crossed.

We are using the 11mm transmission/motor spacer, part # 01E 103 551C

Last edited by titaniumdave; 03-15-2018 at 02:01 PM.
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