dudeman

iTrader: (43)

would 83lb injectors be big enough for 700whp using a boost referenced fpr? if base pressure was around 43 and had a 1:1 ratio putting the pressure at 60ish under full boost. thanks for any help!

dudeman

iTrader: (43)

i have 2 255's in the tank and i am putting a 1/2" fuel in now, if it matters

Zombie

iTrader: (2)

You'll want more injector for safety. I'm on 95lb/hr's and 100% DC at 750 rwhp with and effective fuel pressure of 50psi (65psi base pressure -15psi of boost with no FPR reference). Going by the math my pumps are maxed out as well. Assuming a 400L/hour delivery for dual walbros, my injectors are capable of pumping 8 Liters a minute or 480L/hour or enough fuel to empty my stock 15 gallon tank in about 7 mins at WOT.

If I stick with e85 i'm going to go to 120lb/min injectors and an external pump or figure out the walbro hat trick (three pumps).

dudeman

iTrader: (43)

good info. i was thinking 96lbers but was wodering if the 83's would do it.

kkslds

iTrader: (59)

Yea probably outa go bigger. I just got flowmatched 81#s and twin 340 pumps. I wont be anywhere near that horsepower as im just a stock motor with 8#'s from a d1sc and e85. Thats the injector that was recomended for me from ficinjectors. Give them a call. They really know their stuff.

vaticano

iTrader: (8)

I use I an APS twin intake pump with 79# injectors. The altitude you live at will impact what size injector you need. In Colorado we use 20% less fuel, so what I have works well.