Quote:
Originally Posted by Cobb
Alright, lets see how long the motor lasts. I had a supercharged tacoma with the v6 and trd charger. This was before they added the 7th injector. I was doing between 15-17 to 1 ratios and once at a dyno pull they stopped it claiming I had seriously fuel issues and needed to get it checked or a piggy back system.
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15-17 is pretty dangerous at high load because the peak temperature is slightly higher than stoich, which is usually already dangerously high (though EGTs won't increase much past stoich because less heat of combustion = less heat leftover), but by the time you get to 18:1, peak flame temperature is already down, and at low load it's not an issue at all. Aside from the fact that there's some excess oxygen that can possibly burn away the lubricating film and such, but oil that gets into the combustion chamber is pretty much done for anyways.