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I recently bought an 02 is300 with a blown head gasket. I brought the head to a machine shop and turns out it was massively warped and they had to take 20thou (0.5mm) off.

I was planning to turbo convert the motor and this will obviously increase my compression ratio. Anyone got an idea of how much boost I could run with this setup?
 

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I recently bought an 02 is300 with a blown head gasket. I brought the head to a machine shop and turns out it was massively warped and they had to take 20thou (0.5mm) off.

I was planning to turbo convert the motor and this will obviously increase my compression ratio. Anyone got an idea of how much boost I could run with this setup?
You could lower it with a thicker gasket.
 
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