Does anyone know the jets required for a 100 shot? Also would you think thats the maximum for a fogger system?

For NOS kits 5121 through 5348 it's 46N/30F. Use AF and EGT gauges to tune it properly. I wouldn't run 100 shot on stock internals though, stick with 75.

I think the 100 shot will be fine, after blowing my motor with a 50 shot, Ive installed forged pistons, forged rods, and a complete motor rebuild with all the best stuff. Id like to run more, since i had JE make the pistons especially for Large amounts of NOS, But i dont think a single fogger will work for more than 100, since it will pile up fuel in the first cylinders more than the rest (please correct me if you think i can run more.) so since i have 2 bottles in the back, im going to have a direct port kit custom made for the rear, so I can have a fogger first stage 50 shot, and a 200 shot direct port second stage.

I just saw this post. according to this, the jets go like this:

just go up 2 numbers for each 10hp. Basically:
50hp= 37N & 22F
60hp= 39N & 24F
70hp= 41N & 26F
80hp= 43N & 28F

so that would make 90hp= 45N & 30F
100hp= 47N & 32F


NOt doubting you, just trying to figure out what i need to ger

Im also wondering if i should try a 51N & 36F

Im just wondering if i should upgrade my fuel pump for that, or even for the 100??

The other thing i was wondering, was that i heard the A/F gauges have a really narrow range, so all the way Lean during a NOS run, might not be far enough out of spec to hurt the motor.

>just go up 2 numbers for each 10hp. Basically:
>50hp= 37N & 22F
>60hp= 39N & 24F
>70hp= 41N & 26F
>80hp= 43N & 28F
>
>so that would make 90hp= 45N & 30F
> 100hp= 47N & 32F

Basically, but it changes a little... this is what the NOS manual shows-

40 HP 34/18
50 HP 37/22
60 HP 39/24
70 HP 41/26
80 HP 43/28
100 HP 46/30


>NOt doubting you, just trying to figure out what i need to
>get
>
>Im also wondering if i should try a 51N & 36F

NO. Start with 50/75/100 shots as a base tuning guide. USe your A/F and EGT gauges to tune the system for a larger shot.


>Im just wondering if i should upgrade my fuel pump for that,
>or even for the 100??

Upgrade the fuel pump for anything over 75 shot. Get a fuel pressure gauge, too, so you can keep an eye on that.


>The other thing i was wondering, was that i heard the A/F
>gauges have a really narrow range, so all the way Lean
>during a NOS run, might not be far enough out of spec to
>hurt the motor.

Yeah... you need a digital numerical gauge that reads and displays the voltage of the O2 sensor. Jumpronix makes one and so does Corbin on this board.

Okay, thanks for the answers

Now you say after 75 shot, i need to get the bigger fuel pump. NOw ive heard some varying things on the way i should go about that. SOme say that i need to run a retur line and a regulator. others say i need to change the regulator, and others say just another fuel pump. any ideas??

I believe you just need the fuel pump so you can prevent the fuel pressure from dropping and creating a lean a/f ratio causing detonation.

I've been running an 80 shot wet fogger on my stock motor and stock fuel system without problems. The chart I posted previously was according to a Holley tech and only effective for the jetting I listed. I never listed jetting for a 100 shot, nor would I run a 100 shot with just a single fogger. Direct port would be the way to safely run that.

Christian
06 GG IX MR SE
http://www.ichibanracing.com/ is DOWN!! In between hosts.