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Tippy Tippy is offline
Chain fence eating turbo
Join Date: Dec 2008
Location: Austin, TX
Posts: 8,844
BEGI and MSD BTM is all you need.

That is better than a custom chip for the Motronic due to the way Motronic works.

If you run a custom chip, when you go WOT, the WOT switch is activated telling the ECU you are under boost (if you actually are under boost or not, it doesn't know any better), and the timing is retarded slowing boost onset and less hp before the boost comes on.

Another byproduct is if you were to lift slightly while under full boost. The WOT switch deactivates and your timing goes up to NA levels along with leaner AFR's. Double-whammy.
Old 01-04-2015, 01:02 PM
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