Is it possible to increase the fuel pressure coming out of the tank pump using HP Tuners? I recently changed out to a zl1 pump to get better flow using e85. I was just wondering if the voltage could be changed now in hp tuners to increase it more. Thanks
I take it with all the views no one has been able to do this?
there are voltage output fields and there are fields and tables for fuel pressure as well.
What Higgs said...... you can demand more fuel from the HPFP
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Does anyone know if this area usually gets tuned when flex fuel is turned on? I'm just curious if adding a zl1 lpfp and increasing hpfp pressure if you can squeeze more power out of e85.Originally Posted by Higgs Boson
just commanding more pressure doesn't mean you will get it. once a pump is at or past capacity, yelling at it won't make it work harder.
Not going to make more power with more fuel pressure in a naturally aspirated application if the fueling is already in check.
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Thanks everyone for the informative replies.
So what are setting that actually help fuel delivery? Bump up fuel system min voltage under load, how far can that go to help the supply pump? 15.5v like the gen4 stuff was I think?
How high should you turn up Hi Flow desired fuel pressure? On a LT1 car? if you turn them up too high it damages the pump o rin or something correct
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Dragging up an old thread but just wanted to confirm you successfully fit a ZL1 lpfp in your LT1? Plumbing, wiring or fitment a problem?
There were no fitment issues at all. Everything connected up correctly.
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