Quote:
Originally Posted by Crunk81us
The other question was really just to satisfy curiosity about the di,
If the engine driven di pump is supplied say 40psi as standard, and we upped the supply pressure to say 45psi, would we see a linear increase in the pressure to the di injectors on the other side of the di pump?
I know these things can be controlled via ecu, just wondering about the mechanics of it all.  |
In theory yes, the HPFP is a mechanical booster pump and acts like a hydraulic fulcrum. This is how the BMW N54/N55 crowd band-aids the fueling system. But we have DI+PI so I our fuel system has a much higher ceiling above stock power than theirs. As far as I understand, our fuel system can handle more power than our rods?
-Josh