08-25-2010, 09:00 AM
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#62
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Drives: Buick Enclave/Corvette/2010 Camaro
Join Date: Aug 2008
Location: Maryland
Posts: 421
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Quote:
Originally Posted by Duke
Back in my day there was no such thing as AFM. So I'm wondering if the lower compression ratio in the L99 is also to keep the AFM lifters happy? 
Seems like one of the aftermarket guys would design some AFM lifters that could take the higher lift, higher compression ratio, stiffer springs, etc. |
The L99s pistons have valve reliefs. I’m told that the reason for the slightly lower compression. The valve reliefs provide more clearance when you start moving the cam around with the VVT.
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