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fredmeister fredmeister is offline
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Join Date: Oct 2002
Location: Baltimore, MD, USA
Posts: 2,208
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Lets see, the wastegate can or diaphragm diameter is roughly 3 inches in diameter. Cross sectional area is then Pi *d^2/4 or 7 square inches.
Multiply that by 14.7 psi and you get about 104 lbs of force needed to crack open the wastegate valve. Seems reasonable you aint gonna do that with your thumb.
Alan L measurements seem in the ballpark then. My dimensions are just a guess from memory.
Pretty cool stuff.
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1979 930 Turbo....3.4L, 7.5to1 comp, SC cams, B&B intercooler, Snow Perf water/meth injection, Rarlyl8 headers, Garret GTX turbo, 36mm ported intakes, Innovate Auxbox/LM-1, custom Manually Adjustable wastegate housing (0.8-1.1bar),--running 0.7bar max
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Old 02-11-2008, 03:33 PM
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