Quote:
Originally Posted by Enki
I ran mine lean with no issues, but I had multiple saftey nets. If you turbocharge an engine that isn't factory turbo, with no intercooling of any kind (including chemical) and run it lean with boost on pump gas, I can all but guarantee you will be buying a new engine.
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If you are just motivating a light weight, aerodynamic vehicle that needs only a few horsepower to cruise along, boost and ultra lean mixes produce effective torque with little damaging heat ( almost none is left to operate the turbo beyond a few psi ). This is a far cry than what you are talking about. I have burned my share of engines as a young gearhead, but I don't fear lean mixtures like you do. It is a sure fire way to gain 15% fuel economy by limiting your throttling losses. Add in the reduction of heat loss to the cooling and you can gain even more.