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GJF GJF is offline
Slantnose from HELL
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Join Date: Dec 2004
Posts: 809
You are correct. It is the MBC (regulator) that has limits. There are MBC that are only good for 10,25 and 50psi differential above the spring value. Meaning you can only go above the installed spring setting depending on the rating of a given MBC. This also applies to integrated EBC in ECU's or stand alone EBC's. The valves used with either or have ratings for amount of boost that each specific valve can control. It's the actual spring inside the MBC or EBC control valve that dictates the ability of each valve.
87 911 Carrera platform
Twin Garrett's, Big Valve, Xtreme Cylinder Heads, JB Racing cylinders and machine work, custom JE pistons, GT2 EVO cams, GT3 oil pump, modified 3.2L intake, 80mm TB, custom Intercooler, equal length headers, DFI, KEP Stage 2 custom twin disc, G50 custom gear set, LSD, Tilton trans pump, Fluidyne cooler
Old 09-21-2017, 03:25 PM
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