[Diy_efi] RE: Throttling intake air -- references

[MarkoNTL]

Mike:

Going back to controlling boost via throttle position. I know its possible,
no doubt there, but can I ask:

Trying to control boost at 2500 revs using throttle only is more difficult
than at 5000 on the same engine, as the boost rises and falls over a much
smaller throttle movement? What sort of (boost controlling) linkage would
you use that could control boost via the (blow through) throttle plate, but
alter the 'sensitivity' of the throttle so as the boost came and went over
the same amount of pedal travel?

For the same engine, is the exhaust backpressure in the manifold the same
when running wide open throttle and wastegate part open as it is when
running wastegate shut and throttle part open?


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