I know about the whole colder air is more dense thing and I know that users of both RSM and GM blowers notice higher boost levels during winter. In the situation that say I have a blower running at 10000rpm making 4psi at 100 degrees intake air temp and then I drop the intake temp down to 50 degrees, still running 10000rpm on the blower is my boost level going to go any higher than that initial 4psi?

I'm trying to get some ideas together for some future projects and this question im not quite understanding



1989 Turbo Trans Am #82, 2007 Cobalt SS G85

No it won't.

The reason there is more power there is because at 50 degrees the air is more densely packed with oxygen than at 100 degrees. Inevitably when you compress air, it heats up. The biggest thing with the air being so hot is that the car retards the timing based on air intake temp and feedback from the knock sensor. The higher the intake temp, the more retarded the timing gets.

This is why the GM charger stops making power after like 8 PSI, the air is so hot that the engine retards the timing an insane amount to keep from getting knock and predetonation/preignition.





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