Does anybody know the power (%) loss due ambient heat. I noticed the RX has about 10% more power during the night. I feels "slugish" during the day. Can't wait for winter in Florida. The same power loss occurs with my motorcycle.

Don't know % but a cold air intake would correct the problem if they are available for the 8's.

It wouldn't just magically correct it. It'd help it but if it's 100 and muggy outside, there's not a lot of "cold" air to suck in anywhere, just slightly cooler than what's around the engine bay.

I doubt there's an objective percentage. "Noticable" is annoying enough for me though :)

Yéééé!!!! If we can get the same winter as the last one, we had many days at -25... I might end up with a 275hp Rx-8... :D

I was told by my service rep that you will gain 1% power increase for every 7-10 degree drop in ambient temperature.

I don't know if this is correct but it sounds plausible.

Originally posted by TomsterRX8
I was told by my service rep

...nearly all technical claims by these people are 100% made up, with sometimes a few claims with some truth, and the rare actually true one. don't trust these guys with anything.