Has anyone skimmed a R50 head to raise the CR? - MINI Cooper Forum

Rally370 · #1 (**permalink**) Nov 24th, 2012, 03:10 AM

Just wondering if old school head skimming to raise the comprssion ratio works on a R50? I've the R53 chaps do it.

Rally370 · #2 (**permalink**) Dec 9th, 2012, 06:05 PM

I take that as a no then!

The Nun · #3 (**permalink**) Dec 9th, 2012, 07:00 PM

Obviously it doesnt, probably blows the head gasket.

Rally370 · #4 (**permalink**) Dec 11th, 2012, 12:56 PM

I know the S guys skim the heads to get a little bit more CR and they run a forced induction engine. I would figure 11:1 would not be enought to blow a head gasket. I was looking to go from 10.5:1 to 11:1 as any higher would give me problems with the fuel thay have here.

mab01uk · #5 (**permalink**) Dec 11th, 2012, 05:29 PM

The MiniTorque forum may have some knowledge of skimming heads, they have tried most performance mods on the R50 and R53:
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