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930targa 930targa is offline
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Join Date: Nov 2007
Posts: 14
also i might add that stiffer valve springs are imperative . using an aggressive cam grind means that at high rpms you will get valve float . also on high boost situations you may see the same results . both are bad if you want to make the most power.

and if remember correctly the intake valve is much bigger than the exhaust valve . on turbo cars you want to get most exhaust gas out since it is what drives the turbo so i would suggest to go over sized on the exhaust valve if you can only do one . both valves are very close tho and you may not be able to go oversize at all.
Old 12-11-2007, 06:25 PM
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