question about exhaust and turbo

Most turbo car's ECU mapping will run slightly rich at WOT to keep the engine cool under the stress. This will create additional tail pipe output. I've had several twin turbo cars and had all of them aftermarket tuned and requested WOT be richer than what the factory programmed to keep everything at a safe temp.
 
thanks! i never knew that! does the extra gasoline cool the engine? I love this car, and the power they get out of a tiny engine!!!! my Dad had a 1973 Cadillac Fleetwood (large) with about a 500 cubic inch engine. 225 horsepower, 8 miles/gallon. my 120 cubic inch engine has about 270 hp and 23 mpg. wow.
 
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