I have a TNT wet 150 shot, SLP LT's w/ORP, VIG 3200, and an NOS inline fuel pump, and it is running pig rich with the 150 jet (car backfiring burning remaining fuel after hit, A/F guage pegged on the the rich, i have a MAFT what to lean it out to, it is now on 4% rich?

 

Are you SURE you're running rich and not lean?

I had the NOS inline... and when the 150 would hit it would go super lean on me... then it would recover... followed by a rich puff out the tailpipe.

Don't quote me... but I think you're actually getting super lean followed by getting a rich hit when your fuel system recovers.

Do you use a dyno with an O2 on it? Any nasty spikes?

 

Wait a minute! Is it running rich and backfiring only during nitrous runs? If so youre nitrous solinoid may not be opening or you have a restriction in the nitrous flow. Do not try to adjust your af for a wet kit with the MAf translator. Af on the wet kit is adjusted with the jets.

Double check your jets, maybe they are reversed. Then check to ensure good nitrous and fuel flow when noids are activated.

 

Sounds like your NOS fuel pump is making you run rich. But, it is much better to run rich than lean with a 150 shot, or any shot for that matter.

<small>[ October 10, 2002, 12:32 PM: Message edited by: WMSuperSport ]</small>