Project FNQUIK - Lateral-g Forums

**waynieZ** · #1 09-30-2012, 08:15 PM

Hi guys thanks for checking in. I'm doing ok, this doctor seems to be very cautious because of the damage the recalled hip did. I don't go to see him for 6 weeks from the date of the operation. Only having trouble with strength in the leg. Just started walking around the block so its going pretty good now. I went in the garage to keep my sanity. Couldn't do anything but it felt good.

Thanks

**GregWeld** · #2 09-30-2012, 08:24 PM

Good to hear!!!

Around the block is pretty good huh?!

**waynieZ** · #3 09-30-2012, 08:29 PM

Nothing ever felt so good! Well almost.

**waynieZ** · #4 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** · #5 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** · #6 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** · #7 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.