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Tippy Tippy is offline
Chain fence eating turbo
Join Date: Dec 2008
Location: Austin, TX
Posts: 8,713
Was that post needed? Geez. Chris is a huge asset to this site, let's not bite the hand that feeds us.

Anyways, to alter factory EFI to handle low boost, you can go old school by:

1. MSD Boost Timing Master to retard timing as many degrees per PSI of boost (ignition retard is covered)

2. BEGI FPR that raises fuel pressure per PSI of boost by a ratio like 3 to 4:1 IIRC. So for every pound of boost, your fuel pressure rises 3 to 4 extra PSI over base static pressure (covers fuel side)

This should work for the 964's, the 993's using MAF may not be as straight forward?

Last edited by Tippy; 10-30-2013 at 05:41 AM..
Old 10-30-2013, 05:37 AM
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