spooledhonda

how much psi dose the fuel & oil run on a honda?

boostincoupe

BlueShadow

IIRC stock fuel pressure is around 45psi under vacuum. On a stock/aftermarket 1:1 ratio FPR when you are in boost your fuel pressure is increased 1 psi for every pound of boost. So if you are running 18 psi of boost your fuel pressure is base fuel pressure plus boost psi equals total fuel pressure or 45+18=63 psi of fuel pressure at 18 psi of boost. An FMU is the same way...say if you have a 12:1 FMU and are running 7 psi. Your fuel pressure under vacuum is 45psi, but once you have reached 7 psi you will have 45+84=129 psi total fuel pressure. That's because each pound of boost raises the fuel pressure 12 psi with a 12:1 ratio FMU.

Adriano

Fuel pressure should be at 45psi without the vacuum line hooked up. And oil pressure varies from 20-80 depending on what rpm you area at.

Adriano

spooledhonda

oh and by the way the motor is an LS or B18b1 and i am boosting it.

White Smoke

I vote ban

Good oil pressure is around 60-80 psi mild throttle. It can be as low as 30 and as high as 90 depending on RPM and temp.

spooledhonda

ok, so i wanted to get an oil press gauge they gome in 100psi and 200 psi i should get the 100 pis one then rite?

kuja

100 should be fine, i think thats what my defi goes to.

White Smoke

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kuja &raquo;</TD></TR><TR><TD CLASS="quote">100 should be fine, i think thats what my defi goes to.</TD></TR></TABLE>
Mine goes to 10 bar so... 140psi

kuja

yea thats right

beepy

10 bar = 145 PSI.

Muckman

iTrader: (2)

uno dose tres!