Project FNQUIK - Lateral-g Forums

**GregWeld** · #1 09-30-2012, 08:24 PM

Good to hear!!!

Around the block is pretty good huh?!

**waynieZ** · #2 09-30-2012, 08:29 PM

Nothing ever felt so good! Well almost.

**waynieZ** · #3 09-30-2012, 08:39 PM

I did pick up a new set of 42 lb Holley injectors . I had 50's and was told they were a little big.

**GregWeld** · #4 09-30-2012, 08:59 PM

40#'s will support 520 HP

42#'s will support 550 HP

50#'s will support 620 HP

Above is at the flywheel not rear wheel hp. and using 43 #'s of fuel pressure using .5 BSFC (Brake specific fuel consumption) and 80% max duty cycle.

As with all fuel injectors you can raise their fuel rate by raising the fuel pressure. 42's @ 43PSI will become 45.3's @ 50PSI and so on.

**waynieZ** · #5 09-30-2012, 09:13 PM

I have a Weldon fuel pump its good to 90 psi. I plan on boosting the pressure to get what I need.

**GregWeld** · #6 09-30-2012, 09:19 PM

I'd also run a vacuum referenced fuel regulator... big injectors are hard to control at idle if you don't use a referenced regulator.

With a referenced regulator - the fuel pressure will DROP accordingly at idle (high vacuum conditions) and that will help with the pulse width management.

**waynieZ** · #7 09-30-2012, 09:23 PM

I have an Aeromotive referance regulator and a Weldon pump controller .
I have a question. I have an MSD 6A , will the new Digital 6A give me any advantage?