Quote:
Originally Posted by NoDOHC
But I really do intend to run at 13.0:1 AFR at 14.5 psi boost and I am relying on my intercooler, my low compression ratio and my ultra-polished combustion chambers to save me from detonation.
First I must experiment with the effects of compression ratio on a NA engine before I put the 8.2:1 rotors back in and install the turbo.
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What do you have for heat shielding in your engine bay?
I have read numerous 3rd gen owners that have spent large amounts of time working on heat dissipation with heat shielding, coolant passage mods, ceramic coating, fresh air ducting, ect..all to keep the MAIN enemy low as possible. I think you could run 13.0:1 AFR IF your temps are all very low and stable. It is the continued abuse and boosting at that specific AFR that improper heat prevention could be the killer.
There is a 3rd gen owner in the rx7club who has Einstein as his avatar(forgot name) but he has focused on heat prevention more then anything else and he is making 500 whp on pump gas constantly.
I have focused on this on my new motor all except the coolant passage way milling(most important..wish i would have). I will say my temps under the hood with my heat shielding, ceramic coating, exhst wrap and fresh air ducting and UIM and LIM coating have been impressive BUT until full boost my observations are just that...observations, nothing concrete or substantial til then.