Standard non turbo pistons with standard head gasket. So what's that, 9.8:1 aren't they? I was hoping that compression ratio might be ok. I'm not looking to run huge boost. 20psi is fine for me. I think it might be the heat and the fact that the turbo can't expel the exhaust gas quick enough….possibly.
I have run e85 a few times as I have a flex fuel sensor and replaced fuel lines etc. Noticeable difference that's for sure. But it's not tubed to it.