Johnh Posted May 6, 2019 Share Posted May 6, 2019 does anybody know what the acceptable cylinder compression PSI on a vx sohc 8 valve Caterham engine should be?ive got 170/175 on all cylinders..throttles wide open! which sounds good to me but like to hear from somebody that knows.was thinking of a top end overhaul for the winter project but not sure it needs it now.john Link to comment Share on other sites More sharing options...
elie boone Posted May 6, 2019 Share Posted May 6, 2019 That sounds about right, i think that 150 would still be acceptable if all 4 in the same bracket. Link to comment Share on other sites More sharing options...
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