I'll disagree with a couple points from above:
Now, if you don't mind, what is the temperature of the air coming out of the turbo at say, 15lbs boost?
-- Compressing air always generates heat. Going to 15psi with an 80% efficient compressor will increase the turbo output temp by about 210 degrees.
What is the temperature of that air coming out of a stock intercooler on an 80 degree day, with no heat soak on the intercooler?
-- Air-to-Air intercoolers also have an efficiency rating. I would estimate the stock Buick, with no heat soak (a real problem based on where it is located) to be 70% efficient in terms of heat shedding. So at 80 degrees, 15psi boost, your IC inlet temp will be about 290 degrees. At 70% efficiency, your IC will shed 147 degrees for a IC outlet temp of 143 degrees (80 ambient plus 63 (210-147)). You probably lose about 2-3psi through that IC as well.
Thoroughly chilling your IC, with CO2 or NOS, right before your run would yield a measurable increase in power, but only if you did it right before your launch, because it would heat up again quickly. Spraying supercooling gas on it during a run is an effective technique that has been used for some land speed records. If you only drag race you could go to a air-to-water IC with a big ice water reservoir that would be so effective that your IC-outlet temps would be lower than ambient, but it's not as good for a street car cuz the water heats up and is harder to cool back to ambient.
Jim
Now, if you don't mind, what is the temperature of the air coming out of the turbo at say, 15lbs boost?
-- Compressing air always generates heat. Going to 15psi with an 80% efficient compressor will increase the turbo output temp by about 210 degrees.
What is the temperature of that air coming out of a stock intercooler on an 80 degree day, with no heat soak on the intercooler?
-- Air-to-Air intercoolers also have an efficiency rating. I would estimate the stock Buick, with no heat soak (a real problem based on where it is located) to be 70% efficient in terms of heat shedding. So at 80 degrees, 15psi boost, your IC inlet temp will be about 290 degrees. At 70% efficiency, your IC will shed 147 degrees for a IC outlet temp of 143 degrees (80 ambient plus 63 (210-147)). You probably lose about 2-3psi through that IC as well.
Thoroughly chilling your IC, with CO2 or NOS, right before your run would yield a measurable increase in power, but only if you did it right before your launch, because it would heat up again quickly. Spraying supercooling gas on it during a run is an effective technique that has been used for some land speed records. If you only drag race you could go to a air-to-water IC with a big ice water reservoir that would be so effective that your IC-outlet temps would be lower than ambient, but it's not as good for a street car cuz the water heats up and is harder to cool back to ambient.
Jim