Talking with one of my co-workers today and he had what sounded like a splendid idea:
Tap in to the air intake pre turbo and connect that to the intake manifold. It would be as close to an unrestricted straight pipe as possible, but would have a flapper valve in it, such that when the turbo spooled up the valve would close via backpressure.

I figure it would introduce a bit of lag in the turbo spooling up and kicking in, in exchange for much better pre-turbo performance as the intake air doesn't have to make all those turns through the turbo and over the vanes.

Thoughts? Been there done that's?

-nB

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'83 300D Turbo
Current: ???K mi - 19.2mpg -> 17.4mpg -> 22.9mpg ---> ODO Died
bought at: 233.8K mi - 10MPG For $1.00
3.5 cylinders work: 320 320 100 340 280
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