RB26, I want a 9:1 comp, How much needs to be skimmed?

[Skylineusa]

I will be using a 1.2 metal head gasket. I am not sure what the CC is of the head, that is why I ask.

Cheers,

Tony

[Sydneykid]

The combustion chambers are between 62 and 65 cc's. Most are 64 cc's, but they do vary. So you really need to do the calcs on your own engine. A skim of 1 mm is around 6 cc's so you can see why you need to be precise.

Hope that helps

[Skylineusa]

Thanks,

That was the info I needed.