hi , i'll tune my car in a few weeks , my mods MS4 , walbro 255 fuel pump , fast 90 with 90 T/B , full exhaust with SLP LM cat-back , diamond flat top -2cc , stock rods with ARP high performance bolts , all ARP bolts/studs , stock 241 heads , my question is : how much the maximum shoot can i spray ? my nitrous kit is wet , so i'm planning for 200HP , i want the maximum shoot without leaning

 

Without leaning? huh?

 

the guy is from the middle east, im sure your not to good at speaking arabic, what he meant is how big of a shot can he do without running to lean.

my advice is to get a wideband and try it out, better be safe than sorry, especially with a built motor.

 

You will tune the fuel by jetting (adjusting jet size). If your puling fuel from the tank then a smaller jet (higher fuel pres) or standalone (low Pres.) I would suggest not only getting a wideband but a standalone fuel cell. You are gonna want to run race or high octane fuel w/spray and a larger jet is less likely to clog. Money well spent. Your N20 afr should be 11.3-11.5. imo

 

I am assuming that you are meaning how much can you spray before running lean due to not having enough fuel supply to support the horsepower..

If you only have a walboro fuel pump you are good to about 450-500 hp.
If you have a hotwire with it you should be good up to around 650hp.

Dave

 

lol sorry guys i was sleepy when i wrote this thread haha , i meant without running to lean , dave and camarojunky understand me , i have single nozzle wet system is those jets good for 175HP ? N.070 F.038 , thanks again

 

guys i think the stock fuel pressure is 43.5PSI right ?, with walbro 255 fuel pump how much will be the pressure ?

 

Stock is 58 and the walbro will not change that. a hot wire will bump it to 64 or so but around 5500 it will fall back to 58 if you make around 650 rwhp.

 

how much the hot wire ? and from where can i purchase it ?

 

you better make a new vid when your done!! thats all I can say

 

hahaha i'll , also i'll take a video for the dyno