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Old 04-22-2007, 09:06 PM   #1 (permalink)
Goldsburg
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Join Date: Jun 2004
Location: Indiana / Wisconsin
Posts: 1,254

Mechanical Wastegate Spring Rate...

I wanted to share with everybody who is looking to build a mechanical wastegate controller (aka homemade TurboMaster) that a spring with a spring rate of 50lbs/in seems to work well. I just got my gauges hooked up this weekend and noticed that my homemade controller does not seem to "peak" then drop to a sustained boost as my previous Heath unit did. Rather the boost comes up and holds steady at 11PSI, without dropping back.

I got the spring from McMaster Carr. If I can find the part number, I will post it in Part Point...

Hopefully this helps!

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