Raising allowable fuel pressure on HP Tuners

[Batmanntexas]

Just a reminder here, but as pressure increases volumetric flow decreases, so raising the pressure too much would actually be detrimental. My apologies if you were already aware of this.

I have the AGP dual pumps also, 95lb injectors (@43.5psi) and run my system at 58-60 psi baseline fuel pressure as well. At 58psi, they flow 115lb/hr. On E85, injector duty cycle is about 60% iirc.

-Scott

[joshnmn]

And just so we’re all clear, having 95lb injectors doesn’t mean they run at 95#. Still should run around 60 (injectors will have their flowrate at specific pressures listed in the specs).

It’s actually slang that we kind of got used to. Injector flow rates are measured in pound-mass per hour. For slang people write “42# injectors”. In reality, they mean 42lbm/hr.

[JMI]

With the AGP dual pump setup, the FPCM is not controlling the pumps (pressure) anymore.
The mechanical 1-1 boost reference fuel pressure regulator is controlling it. Most set the base pressure to 58psi. Then under WOT, the fuel pressure should go up,depends on how much boost your seeing. I've seen 80+psi of fuel pressure with no issues from my end.