Turbo Bypass

[Chris Conlon]

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Mike V. wrote:

> > If you make the turbo run at vacuum, won't you risk over-speeding it
> > and consequently damading it?
>
> yep.  Flashback: early 70's Accel marketed a kit that did it. 
> Overspeed at part throttle/high load conditions.  

Sounds like this setup needs a way to read the turbine's RPM, and make
that an input into the wastegate/boost control. Something as simple
as an audio pickup with some filtering might even do, if the turbo
has a clear enough note to it. Though something that reads shaft
speed a bit more directly would be nice, of course. Any comments?

> But wow! the thing would hit (fast) with big boost, when you stomped
> the pedal from a part throttle load.  The turbo would be spinning at
> a bazillion rpm, in high vauumm,  and then the butterlfy opens to
> feed it air..yeow!

And the results sound like they'd be well worth the effort! :)

   Chris C.

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