also is there a way to run I higher fuel pressure to the injection pump... iv been reading other threads about running air dog or fass pump at a high volume to keep things cool but also adjusting overflow valve to around 65psi? higher head pressure = better furling across the board and more hps.. is this true what are your thoughts?

 

Just run a tork-Tek OFV... set your fuel pressure up to about 40 ish .. it will help .. I would not recommend 60psi to a P7100 .. you may be reading about the VP44 pump in the 24V trucks ... yes they love fuel pressure.. so unless you have a 98 W/24 valve .. go with a trok tek overflow valve .... It keeps more pressure in the IP ...

Also if you LP has pressure and you need more Volume's of fuel .. then go with an Electric pump ... Dual feed style ..

Dual feed uses both the electric pump, and the LP, On the delivery side of both pumps there needs to be a opne way check valve- so they dont back feed if one dies out... also having a in- cab fuel pressure gauge will tell you when its about to suck to be you ..LOL

 

How do I know I'm running 40ish psi does it come set at that

 

um... if you put more than 20ish psi to a vp pump its going to leak. they like 15-17psi. a p-7100 can handle bunches of houing pressure. I run mine @38 on the street and turn it up to 50 when I dyno. stock they are like 25-35psi. and to measure said pressure you need a gauge. LOL

also there is no head and rotor in these pumps. there are barrels and plungers.

 

Why not 50psi on the street? Dyno numbers are nice to see but the real reason we juice these things up is to feel the power. Lol but if you r doing it on the dyno why not on the street..? Also where is your fuel pressure reference? Like where is it tapped in at?

 

um because the truck goes crooked @ 50mph with 38psi of fuel why do i need more? and i dont want a leaky injection pump. they are expensive to have worked on and time consuming to rip out of the truck. for the very few ponies you would see from jacking the fuel pressure up so high whats the point? i like my stuff to stay running. and you put the fuel pressure gauge anywhere in the feed line after the lift pump.

 

OOPS .. did i post it back wards ...LOL

 

Touche! Didn't realize it leaked at 50..
thanks

 

Cant be perfect all the time ..

 

it doesnt leak at 50 but why push it? its your truck run 90 i dont care you asked the question.