Rewiring the fuel pump got me thinking. If I were to rewire my pump and place a variable resistor (pot) inline, in theory I'd be able to adjust the output voltage. Granted I wouldn't run it under stock voltage..but I would gain the ability to vary it from about 10v-14.5v (or whatever my alternator can pump out). Anyone try this.

 

Fuel pressure is a pretty crude way of controlling AFRs. It's a neat idea, but not really one worth pursuing.

FYI, BDFPRs (boost-dependant fuel pressure regulators) and RRFPRs (rising-rate FPRs) are essentially that, but a good fuel computer can't be beat.

Brandon