[Diy_efi] RE: Throttling intake air -- references

[Tom Sharpe]

Accel used to sell a t04b for a sbc (suck thru) with a 3" throttle plate in
front of the compressor hooked to a cylinder with a spring connected to intake
pressure.  as the pressure rose, the cyl closed the throttle - the spring was
adjustable - worked well at 8-10 psi.  TomS

Grant Beaty wrote:

> My BC is referenced to the compressor housing. Actually its bolted directly
> on the compressor housing. If it were referenced to manifold pressure, it
> wouldn't open at all when I modulate the throttle for 8ish psi, and it would
> probably surge like a mofo, since pressure ratios should be higher. I think
> this is what Andi B. was seeing with his T64 surge problem, his BC was
> plummed off the intake mani.
>
> Grant Beaty
>
> --


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