[s-cars] Turbo 101 question...

[FvAMI at aol.com]

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In a message dated 6/27/02 10:01:53 AM Pacific Daylight Time,
Thomas.Pollock at hp.com writes:


> why don't I see full boost in first gear ?  I guess the extreme would be,
> why can't I generate ANY boost when sitting idle and just revving ?
>

1) Not enough time for the turbo to spin up and generate full boost. If you
really want to see it drive about 5 miles an hour with the brakes on and the
accelerator slammed to the floor till the boost reaches an appropriate level.
2) Sitting idle and revving will generate a little boost at least a little
more than just sitting idle. However once again there is not enough exhaust
velocity to generate any real boost. If you had a turbo that would generate
boost at idle it would probably max out at 2000RPM.

Best regards,
Feico van der Laan