93hatchdx

well since ive had my setup ive been just running off the wastegate spring which is 7psi. i finally got around to getting another mbc since my other one broke when my friend crossthreaded it. anyways, just checkin when does the stock fuel pump stop putting out enough? cuz in prolly a month im turning up to 20+psi so im gonna pick one up soon anyways just curious as to the limits of the stock one

HMT-Admin

If its a civic pump your looking at maxing 450s around 265ish whp.. integra pump 285ish whp.


Get a walbro, they are cheap as hell.

93hatchdx

yea i plan on getting one. im moving out soon so my money has to be put in good places at this moment in life. fyi i have rc 750's. so as soon as i get a fuel pump and and 2.5 map or 3.0 bar the boost is going up.

HMT-Admin

I dont think the larger injectors are going to help much with the stock pump either.. You can pretty much hardwire the 450's open at WOT and it will still creep lean on the top end when making that kinda power. Good luck, =)

Joshb_

I went with a gsr pump cause i got it for free and the walbros with a stripped rear arent the most fun thing to listen too

sohcpwr

i think if your walbro pump is whining that loud, its time for a new one.