Jbp

Yeah that’s what I’m thinking now. cyl 1-160, cyl 2-150, cyl 3-120, cyl 4-140 cyl 5-100, cyl 6-60 just took covers off now and checked valve clearances and all seem fine except cyl 6 exhaust side is at .35 instead of .5 which might have a little to do with it but not that much I wouldn’t think cam timing is all good

Hi, I’ve got a r33 with a rb25 neo engine fitted. Just had a compression test done as it is running a bit rough and it come back with poor results ( cylinder 6 as low as 60) is there anything I could check that could be causing this before I suspect the worst.