Has anyone skimmed a R50 head to raise the CR? - MINI Cooper Forum
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Old Nov 24th, 2012, 03:10 AM
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Has anyone skimmed a R50 head to raise the CR?

Just wondering if old school head skimming to raise the comprssion ratio works on a R50? I've the R53 chaps do it.
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Old Dec 9th, 2012, 06:05 PM
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I take that as a no then!
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Old Dec 9th, 2012, 07:00 PM
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Obviously it doesnt, probably blows the head gasket.
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Old Dec 11th, 2012, 12:56 PM
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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.
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Old Dec 11th, 2012, 05:29 PM
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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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