AFR on the dyno is 12.8 NA, and 11.6 with 27 gas and 52 nitrous jet.... Should I go 1 size smaller gas or 1 size larger nitrous jet? No chance to get back on the dyno.... Hope to get to the track for an event this weekend...

 

Not sure what you're asking....are you wanting to bump up the shot a little or what exactly?

 

The AFR is a little fat, want to lean it out a bit closer to 12.8..... Picked up 81 hp on this shot pulling 4* btw...

 

Since you didn't mention otherwise I assume you're running pump gas, proper plugs, timing, etc....With that said I wouldn't want a/f much leaner personally, but if I did I'd start with a 25 or 26 on the fuel and go from there

 

Yep pump gas, proper plugs, pulling 4*, etc.... Thinking to go a bit smaller on the fuel but still staying safe....

 

Sounds like a plan. That's what we did with mine to get it where we wanted

 

Same thing happened when I dyno'd my car. The a/f was super rich so my tuner said to get a smaller size fuel jet and monitor it on my a/f gauge the next time I spray. So what did I do...I just upped the nitrous jet lol!

 

I'm gonna do all of the above! Smaller fuel then bigger nitrous then smaller duel and bigger nitrous again then.....

 

What is total timing and what plug are you using? If you want to clean the .052 jet up then you need to pull fuel out. What is the combo? What fuel? I can tell you that is a fat spread though.

 

BR7EF plugs, 27 fuel.... Going to try a 25 fuel... If that gets me to around 12.1 ish I'll be happy, if not then maybe a 24.... As recommended by the NX guys...thx for the replies..... T&T tomorrow, and event on Saturday we'll see how it goes....

 

I wouldn't go any leaner than 12:1 on spray.

 

How do the plugs look? AFRs are helpful for monitoring what's going on in the engine, but it's not a good substitute for pulling the plugs and seeing how the fueling looks.