IntegraGSR(-1)

ok heres my setup finishing in a month or 2 not sure what pump ill need..one freind sais the walboro 255 will be ok but ill be hittin 400hp+ prolly so im not sure...

B18c1 gsr

head p72.......skunk 2 springs@ retainers....crower oversized stainless valves..ported and polished....web cams

b18c block.....eagle rods, 84mm wiseco 8:5:1 pistons...darton sleeved

t3/t4 turbonetics...and bunch of other crapollla....

one of my friends has a aeromotive pump thats good to a lot of hp but seems like overkill....

jfoster

iTrader: (1)

I run the 255 .... seems like they're good well past 400....

IntegraGSR(-1)

will the injector size make a difference on what pump i need...

jfoster

iTrader: (1)

Its lookin like the 600whp mark is where people start lookin for another pump /set up.

I run 550s but I know people run the 255 with 880s+

I'd say you're more than set with the regular walbro 255 intank until you start aiming above 600hp

Turbo-charged

fuel PRESSURE makes the biggest differnece on fuel pump selection.

40 psi base pressure + 40 psi Boost (1:1 regulator) = 80psi fuel pressure. MOST fuel pumps do not flow very well at these levels.

from what ive seen 70-80psi is where most pumps effeciency drops like a rock. Weldon makes a pump for 80psi and the next step up is 200psi 1000hp pump, which is what i will be using.

you need to list your horsepower goals for a fuel pump recamendation.


my walbro 255 (not the hp model) started to show signs of running lean around 550whp, just for a heads up.

IntegraGSR(-1)

just looking to hit the 400hp mark, so much stuff takes into effect if you try to go higher. second it will be a street car, prolly not daily but pretty often. thanks for the replies...

IntegraGSR(-1)

ill probably be running 14-18psi...i shouldnt reach 80psi of fuel pressure should i...

D@nnY

ive made 660 hp on a 255 hp and 1600cc injectors adn then it leaned out bad...

youll be fine