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mark houghton mark houghton is offline
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Join Date: Jul 2008
Location: Central Washington State
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Originally Posted by Helmsy View Post
Mark does that mean you aren't using the boost cutoff switch as well?

I am looking to bypass my delay relay and run switched power from the front fuse box to the MSD but this would eliminate the boost cutoff switch too. Just haven't been game to do it yet but if I purchased a separate boost controller wouldn't need the stock cutoff anyway.
Yes, I still use the overboost cutoff switch as well. Even with a separate boost controller that you have planned, it (or any number of things) can fail to where the wastegate isn't opening or doesn't open in time, thus the protection of the cutoff switch to shut down the fuel pumps and stop (save) the engine.

Running a dedicated power source to your MSD should have nothing to do with the cutoff switch, as that switch has nothing to do with ignition and only functions as a fuel cutoff in sinc with the yellow relay. Don't confuse this protection circuit with the ignition cutoff delay...they're two separate unrelated systems.
Mark H. 1987 930, GP White, Wevo shifter, Borla exhaust, stock everything else. The result of a massive Pelicanite good will fire recovery effort. Truely an open book, ready for the slippery slopes to modification.
Old 01-25-2010, 05:47 AM
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