I have the car in the sig. Major mods are.

350 TPI
Ported Plenum
1 5/8" shorties
Exhaust
K&N's and gutted airbox.
3.42 gears
Corvette Torque Converter
Pro-Built Automatics Street/Strip transmission

I gteched today with roughly 3550-3600 race weight.

AC on, and very easy launch, 5200 shifts, I managed a 15.15@91mph.

My car is running insanely rich. I gotta check my FP regulator, cause I set it at 45psi with the vacumn line connected. (I know, I am dumb.) Just going 15 miles or so, I went from half a tank, to 1/4.

I think I am going to drop my fuel pressure first. I read on here the stock PSI was 45, but in another post, I read 38. What is it? In any event, I am going to drop it and see if it helps. If not, I guess I will need tuning.

Thoughts?

 

I have an accel AFPR and I set mine to 40 PSI With the VACUUM UNHOOKED on my 91 Z28 with a 305. Most people set it between 35-40 PSI because it seems to work the best. 40 PSI with vacuum hooked up is WAY too much fuel.

Sean

 

I found that out afterwards. I am just too lazy to go and put the gauge back to it.

You guys think dropping the FP that much will dramatically help my times?

 

I wouldn't say you're cursed, but I do agree you're dumb and lazy.

Set the fuel pressure as specified, 43psi vacuum unhooked has always done me right...assuming you're running 22# injectors and a stock 350 chip/MEMCAL.

Re-test and report back.

 

I am going to do it monday.

No one ever mentioned to do it while unplugged, I figured that out later on.

 

Actually several people mentioned to do it while unplugged...including this from the Tech Articles section here on thirdgen.org:

Q: How do I correctly set the fuel pressure on my new adjustable fuel pressure regulator?

A: The correct way to adjust your fuel pressure is <b>with the vaccum line of the fuel regulator disconnected.</b> (snip)

 

When I read it, I could have sworn it said 45psi. Thats it. I found out later on that it had to be done that way.

-edited cause you said it less like a ******* this time.

 

Can you edit yours to sound like less of a moron this time?

Yeah, my first version was kinda rough so I cleaned it up...but since you used profanity here ya go...

 

I thought the filter would have caught it. *Shrug*

I might have gotten the specs out of alldata. Its known for always being wrong.

Why dont you also drop the condesending attitude? I'm sure you messed up before in your life.