OneBadSSS

iTrader: (9)

I just finished installing Autometer electric Boost/Vac and Fuel Pressure gauges and I took the SS out for a test drive to see what kind of readings I'm getting. I don't have any prior experience with an F/I setup so I want to be sure that my readings are "normal." Here's what I'm seeing:

At Idle:

16 Vac on the boost gauge, 61 PSI on the fuel pressure gauge

At 65mph cruising:

10 Vac, 60 PSI fuel pressure

At part throttle (accelerating from 65mph to 75mph)

0 Boost/Vac, 60 PSI fuel pressure

At WOT (60mph to 80mph blast)

6 lbs. of Boost, 55-56 PSI fuel pressure

Decceleration (65mph down to 35mph @ the off ramp)

19 Vac, 60 PSI fuel pressure

Do those readings sound ok? Current mods are in my sig BTW...

BigTex

iTrader: (16)

What year is your truck? I'd say those readings are correct for a 2004+ year truck. The fuel pressure shows the characteristics of a tank mounted fuel pressure regulator. On a 03 and older vehicle, you'd see the opposite - mid 50s psi at idle, ~58psi at part throttle and low 60s psi at WOT.

OneBadSSS

iTrader: (9)

My truck is an '05 SS (AWD) and it has the Magnuson in-tank fuel pump kit installed...

xsports33

iTrader: (1)

Those are very similar readings to mine, only exception is at WOT my fuel pressure only drops to about 58.

BlownChevy

iTrader: (20)

You are JUST fine......All readings are within spec.

OneBadSSS

iTrader: (9)

Thanks a lot guys, I appreciate the feedback!

Hey Brian, when are the crank pinning kits going to be available for purchase? I'm very interested in picking a kit up from you! Let me know, thanks!!