Duramax Diesels Forum Truck of the Week
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Old 05-18-2017, 09:14 AM
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kidturbo kidturbo is offline
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Join Date: Jul 2010
Location: Somewhere On The Ohio
Posts: 667

Nice work.

So basically Melling does the same mod with these pumps that they've done to make HV SBC pumps for past 30yrs. Change the relief spring. Putting a shim in a stock pump should yield similar results.

Now what thickness shim has everyone used to achieve a safe bypass pressure? We didn't mess with the spring on our modified LML pumps. Got me wondering what they actually bypass at..
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