Hi guys, after having my engineering done on my block and heads, 88mm bores, block and head decking I needed to determine the new compressioin ratio as I was worried that it may be too high. I measured the combustion chamber which measured 48.5cc (stock is 49.5cc) as this was the only unknown value. The rest of the values I had and entered all this data into the compression ratio calculator resulting in a comp ratio of 8.9033 :1

I would like to know from those with experience if this comp ratio is acceptable as I will be running gt2860rs turbos, 700cc injectors, large side mounts and Nistune. I am of the opinion it would be fine just would like your comment.

Thanks

you should put a thicker head gasket on to compensate. In terms of compression ratio, depends how much boost you intend on running on which fuel