Fuel Pressure question??

[TurboTalonAwd95]

I have a 255 walboro Fuel pump, 550 cc injectors, SACF II, and an aeromotive FPR ... does anyone know what the pressure should be at?? Its currently around 60psi.

 

[Strm Trpr]

A simple search would've have yielded you many results.
2g's 43.5psi with vacuum line at AFPR disconnected and car warmed up idling.
1g manuals are 37.5psi under same conditions.
1g autos are 43.5psi under same conditions.

 

[TurboTalonAwd95]

Ya, but i wanted to know if the pressure would be increased being an upgraded fuel system.. i know what the stock specs are.

 

[Strm Trpr]

does anyone know what the pressure should be at?? Its currently around 60psi.

Well then maybe you should've worded your question a little differently Larry.

 

[TurboTalonAwd95]

ok I have a 255 walboro Fuel pump, 550 cc injectors, SACF II, and an aeromotive Fuel pressure regulator. What should the pressure be at. I know the STOCK specs. but does anyone know what it should be at being and AFTERMARKET fuel system, running a 14b turbo. does it need to be at stock specs or changed?? and who the hell is larry???

 

[Strm Trpr]

ok I have a 255 walboro Fuel pump, 550 cc injectors, SACF II, and an aeromotive Fuel pressure regulator. What should the pressure be at. I know the STOCK specs. but does anyone know what it should be at being and AFTERMARKET fuel system, running a 14b turbo. does it need to be at stock specs or changed?? and who the hell is larry???

You want to set your base fuel pressure to 43.5psi.

Let your injectors and your SAFC do the rest.

 

[9TalonNT6]

How about you factor in how much boost your running, it makes a big difference if your running 10psi or running 15psi, if your running stock boost run around OEM specs, 60 is way to much for a 14b,

 

[TurboTalonAwd95]

Well the car isnt actually running. i just replaced the head an i was checking fuel, spark, timing and it was SET at 60. not actually running. I was running 18-20psi on the turbo. but thanks and thanks Strm Trpr ill do the 43.5

 

[jking29]

How about you factor in how much boost your running, it makes a big difference if your running 10psi or running 15psi, if your running stock boost run around OEM specs, 60 is way to much for a 14b,

This is wrong. It makes no difference what boost he is running. You set your base fuel pressure, which in his case is 43.5lbs and the regulator raises fuel pressure 1lb for each lb of boost.

 

[Spoolin98]

How about you factor in how much boost your running, it makes a big difference if your running 10psi or running 15psi, if your running stock boost run around OEM specs, 60 is way to much for a 14b,

Dont post if you dont know what your talking about. You are wrong, jking29 is correct.

 

[TurboTalonAwd95]

alright. thanks for the correct info. so 43.5 at idle. when i go to crank it over, it does'nt actually start but the gauge on the FPR hit's 60lbs. so turn it down till its hitting 43.5 and i should be good.. ok thanks guys

 

[generalu]

alright. thanks for the correct info. so 43.5 at idle. when i go to crank it over, it does'nt actually start but the gauge on the FPR hit's 60lbs. so turn it down till its hitting 43.5 and i should be good.. ok thanks guys

Just remember it's 43.5psi with the vacuum line disconnected.

 

[grnchevyz]

Hate to point out the obvious but while the hose is disconnected, make sure it is capped as well

 

[snox135]

But no need to cap the line if it does start.