Fuel Pressure??

[brodee]

Anyone know what fuel pressure they are running? I'm getting ready to throw a gauge on and want to bump up the regulator a few psi since I'm running so lean. Just curious if anyone is running a gauge or knows their fp?

[rs4pro3]

I'm running 38psi right now with my mustang 19lb injectors on an 88 325is engine.

[brodee]

I'm running 38psi right now with my mustang 19lb injectors on an 88 325is engine.

Thanks, that helps a lot since I'm putting in some 19# mustang injectors I just got. Curious to get the gauge on there and see what it's at now.

[SpeedDemon_e30]

hey lets try 200lbs man lol

[brodee]

hey lets try 200lbs man lol

Sure Chris, we'll test it on your car first ;)

[brodee]

I put the gauge on it and it was running 46 lbs. I bumped it up to 51 lbs and took it out and drove it for a while. It used to drop off around 6k rpm and now it pulls hard through 6600.

I'll get the bigger injectors in and give them time to adjust and then get it back on the dyno and see if the problem is solved.

[e30evolution]

thats more pressure than you need.... what other mods do you have?

[brodee]

Dinan chip, 272 cam, headers, full custom 2.5" exhaust, K&N intake.

I'm guessing my injectors are so plugged up there isn't much getting through. When I change out to the 19#'ers I'll kick the pressure way down and start adjusting it from there. At least with the gauge on it now I can adjust it between dyno runs and watch the AF ratio.

[kylebes1]

I like the car in your sig, give it to me.

51 psi is alot. i would be sure to turn it back down around 38 when you install the new injectors

[brodee]

I like the car in your sig, give it to me.

I'll give you the black one, it's for sale :)

[kylebes1]

two doors more than I really want

I was looking for a shell to put my engine in, but I think mine will work out and eventually be unique.

[skat 325is]

Mines about 35psi idle...and 100+ when i hit 9psi 8)

yeah i know i gotta turn it down a little bit.