Originally posted by TommyBoy:
However lets not stray from the statment: That a turbo is not Rpm dependent!!!
You're right. A turbo is NOT directly RPM dependant. Did you just contradict yourself?
Originally posted by TommyBoy:
Because if your car is just sitting there not running I am sure the turbo is not spooling up!!! 
Absolutely not.
Actually, if you push my turbo car down a steep incline in 2nd gear with the key out of the ignition, when the engine spins up to 7000 RPM, there still won't be any air coming from the turbo's compressor side, because it won't be spinning.
However, if you pushed a S/C'c car down the same incline, with the engine spinning at 7000 RPM, you would have air coming out of the compressor.. because the S/C would be turning at the exact same speed as if you had actually been driving the car at 7000 RPM.
Don't treat me like stupid. I know the turbo will not make boost without the engine running. What I'm maintaining is that the amount of air pushed by the turbo is not
directly proportional to the engine RPM... very unlike the s/c car, where you have a
mechanical connection!
Doesn't that make any sense?
