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      09-16-2009, 02:00 PM   #64
Mike@N54Tuning.com
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Quote:
Originally Posted by shiv@vishnu View Post
Not really. The idea is to select a spring rate soft enough to prevent partial throttle surge. But stiff enough to keep it from lifting during cruise conditions (when vacuum is applied to the top of the diaphragm and atmos pressure or light boost is on the bottom.) Or does Terry still think the bottom of valve sees vacuum?

shiv
So now you think its easier to keep the pressure differential under 4psi than it is to keep it under 6-10psi? LOL. For consistency in testing and to avoid funny business lets just agree to only use the stock diverter valves.

Mike
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