FPR that is boost sensitive?

**1fast88gt** · 2-18-06, 10:36

Ive tried to search this topic and cant really find what Im asking for. Is there a FPR that is boost sensitive? Or are they all? IDK. Also, say if i was going to run 440cc injectors with my setup, check my sig., would i be able to set the innjectors so they dont run to rich or lean with the adjuctable fuel pressure regulator? I know this is a pretty dumb ? but I need to know these things. Thanks and please dont flame me.

**Saddest** · 2-18-06, 11:07

i dont see u having a problem witht he fuel press regulator but its not the best way to go.

**Saddest** · 2-18-06, 11:09

but u can try the aeromotive boost reference fuel press. reg. there is also the MSD which works well also.. but i preferr the aeromotive.

**Zach** · 2-18-06, 11:17

AFPR's are based on boost/vacuum signals. stick with Aeromotive AFPR's and you'll be happy.

**1fast88gt** · 2-18-06, 11:27

Quote:

Originally Posted by HotAss6GT

AFPR's are based on boost/vacuum signals. stick with Aeromotive AFPR's and you'll be happy.

Would i be safe with running the 440cc's or what. Or should I go with 370cc?

**Zach** · 2-18-06, 11:31

are you starving for fuel? have you gotten on a dyno to see what your A/F is?

**1fast88gt** · 2-18-06, 12:06

Not yet just thought I would be in need of more fuel. just wanted to be sure if that is what I needed.

**Zach** · 2-18-06, 12:08

get that done above...then you'll know how your fuel is. stock boost level, your fine. get a walbro 190lph fuel pump if you're going to up the boost past 12psi. find out where your car is at fuel wise, then come back.

**cenatix** · 2-18-06, 12:26

Quote:

Originally Posted by 1fast88gt

Ive tried to search this topic and cant really find what Im asking for. Is there a FPR that is boost sensitive? Or are they all? IDK. Also, say if i was going to run 440cc injectors with my setup, check my sig., would i be able to set the innjectors so they dont run to rich or lean with the adjuctable fuel pressure regulator? I know this is a pretty dumb ? but I need to know these things. Thanks and please dont flame me.

To run 440's you'll need to bring the base fuel pressure lower than stock (~36 psi). Then you'll need a way to bring the fuel pressure back up during the onset of boost (FMU or Standalone).

**Zach** · 2-18-06, 12:32

or wait until Jeremy is done with his prototype that controls fuel.

**cenatix** · 2-18-06, 12:58

Yeah, sounds like a good unit...but for $350, you can have a full standalone setup.

**1fast88gt** · 2-18-06, 13:19

Quote:

Originally Posted by cenatix

Yeah, sounds like a good unit...but for $350, you can have a full standalone setup.

From Who?????????

**Dyoel182** · 2-18-06, 13:39

Yeah nobody makes a standalone for that cheap unless you put one together like a MegaSquirt.

**rebel2k4** · 2-18-06, 13:56

stock fuel pressure regulator is 1:1. For every one pis boost, your fuel pressure is raised 1 psi.

For more fuel that wont sacrifice driveability and only add when you need it (in boost) check into a begi/cartech FMU. You can adjust the ratio of gain and even onset. Its a bit pricy ($250 ish) but more reliable than any other FMU.

MX6 firsttimer · 2-18-06, 23:10

Yes I would half to agree the cartech is a very good unit, Ive got a buddy with a boosted neon (gs eclipse) that uses that unit and it works very well. As for a standalone for 350 or under your nuts. Even the megasqirts cost alittle more than that unless you put all the components together your self!