lsturboej1

i was just wondering how much fuel i need to add for every pound of boost i add to my car

tony1

If you double the amount of air going into the motor, you need to double the amount of fuel going in to maintain the same a/f ratio.

blaze the chemi

if only the air temp is constant....
<<< chemitry and physics geek

tony1

And if backpressure is at a constant ratio to manifold pressure.

That's why we have MAP comps, Air temp comps, EMAP comps, etc.

shifty35

Consult the magic 8-ball... I mean, magic wideband O2 sensor...

boost4life

every psi jus double the fuel

PrecisionH23a

Tony told me to add like four for every pound.

soccerlover7

I recently purchased a 1994 Honda Civic LX. When I originally bought the vehilce, the previous owner was running a stock exhaust system with no catalytic converter. I wasnt concerned because I had intentions on replacing the whole exhaust system anyways. I bought headers, a resignator, hi flow cat and a muffler. I took these parts to the muffler shop and im pretty sure they put 3" piping in between. At the time I didnt even know that they had different pipe sizes and that it made a difference. Now i'm not exactly sure if my exhaust system is the problem but my car is extremely low on power. I can barely get up hills. In fact I cant gain any speed up hills all my spedometer does is drop along with my rpms..even when I switch into a lower gear I still cant get up them. And its not only big hills its any slope thats not level and i mean ANY. Its ridiculous because if im at a stoplight and i try to accelerate normally my car will just run backwards until i get up into the 4000 rpm range and then it will slowly make its way up but only when I ride the clutch! Please someone help me. Could this be because of my exhaust system or is there another underlying problem. And what are my options in fixing the issue.

Thanks in advance.

DOHC_16v

Add a pound of cheese for every pound of boost

hawkturbo

the stock fuel presure is 45 ? then if a got 10 psi of boost need to raise to 55 etc sorry my english is bad jejeje

96 GSR-T

your fuel pressure regulator will add a lb of fuel pressure for every lb of boost for you as long as it is a 1:1 regulator.

hawkturbo

ok A-1000 for the goods lol

lsturboej1

thanks for all ur help guys i think i get the genreal idea of the whole concept