flatty Posted August 11, 2009 Report Posted August 11, 2009 How much compression should a stock motor have? Quote
SAVAGE420 Posted August 11, 2009 Report Posted August 11, 2009 What altitude you at? Sea level with stock new pistons would be around 125ish at sea level..Or 90-100 or so at 10.000' With the exact same motor. Quote
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