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Re: Compressor bypass valve questions...
On Sun, 19 Oct 1997 QSHIPQ@aol.com wrote:
> Running 2 or more would solve the problem me thinks. Regardless on how fast
> you shift, you will eventually wish you had done the job, it only takes
Yeah, I agree - its right in concept for sure. I just haven't been
convinced that I need to spend the time to install it yet.
> full bore for instance. Running high boost and closing throttles doesn't mix
> well. I measured over 50psi pressure spike (Ned claims 70+ is realistic)
I believe that completely. However, I also make a special point of not
closing the throttle all the way when I shift, so I think that is partly
why I get minimal lag between shifts. I've even tried it a couple times
where I kept the throttle WOT during shifting for maximum boost in the
next gear. I think I'd try it at the drag strip, but it really is too
much of a risk on the street.
> than a non freewheeling turbo. I personally don't see a bypass valve as a
> performance gain, only a preventive maintenance item. Saving turbos and IC
> end caps is a good idea, especially as you approach and exceed 1 bar boost
> pressures (14psi +).
That's a more realistic approach to bypass valves I think. Alot of people
think that the addition of a bypass valve will let them spin tires in the
first three gears of as 5KCSTQ - it ain't gonna happen!
> Late 87 44 chassis turbos use a delay shut diaphram on the t-body (on the WOT
> side), which is a big help, especially combined with the valve. The bigger
Yep, I think that's a great idea.
Graydon D. Stuckey
Nothing I have said should be construed to mean anything you think I
might have said in any way whatsoever.