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Power Strokes
7.3 Aftermarket
How to tune a wastegate
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[QUOTE="a_moore, post: 94281, member: 807"] Why can a simple pneumatic cylinder not be used to make the tuning a little easier. If you want slightly more backpressure hook the boost up to the rod side (as it has a smaller surface area on the piston based on rod diameter) and the backpressure to the piston side (assuming that you set it up with the cylinder and gate normally closed). Wala, a self regulated gate control. It may be necessary to add regulator to the air, or say a 20 psi check valve to get things lit. This (in my head anyway) would regulate itself to near optimal p/r and keep the controls and extra tuning and adjustments out of the equation. As anyone knows who has played with turbos....they run good and pull hard to a certian point, then they start to fall off in power as they are pushed out of theit map and start to create hot boost and high parasitic loss via backpressure. I will try it someday. [/QUOTE]
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