[JBL930]

Originally Posted by 911st

Johnathan.

A stock C2 makes .8 bar by 3100rpm with stock exhaust and a K27-7200.

Stock cams are going to help boost response. C2 cams have about 1 point lower effective compression ratio because of there later closing of the intake valve.

Were you running a boost enrichment delay. If so that keeps the control pressure higher longer and slows boost response to.

Then the is what gear the car was started in and how early in the rpm range the test started.

Then there is timing, AFR's and other small things.

Not saying something can or can not be done or is probable or not, but with the right set up it should be possible to hit boost at a very early point. That dose not mean it will carry in the upper range.

I talked to one builder that with a very small hot side on a custom KKK made boost at idle on a C2 turbo with EFI.

The best.

I don't doubt you could make 1.0bar by 2000rpm even.... But show me a turbo on a CIS car that boosts that early, AND produces 400hp at the wheels, or around 460hp at the flywheel...