Big exhaust valve in normally aspired

Road-race engines and ancillaries - general discussion
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NOSferatu
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Joined: October 22nd, 2006, 9:43 am
Location: Finland
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Big exhaust valve in normally aspired

Post by NOSferatu »

Hi,

I am low on income, so I need to consider this as option:

I have 8vTC head, made for turbo application. 44mm intake, 40mm exhaust. Combustion chambers are enlarged.

Because I have for 2.0TC, 1.6TC Supertech forged pistons with high CR, I maybe not need to machine the pistons to lower compression ratio to acceptable.

My question is merely that is there any reason not to use this head on normally aspired engine? Can 40mm exhaust valve be too big for good power?
370
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