MeanWS6

Don't have a NA dyno A/F reading, but at WOT on a 180shot I am getting 10:1 A/F. Is this too rich or should i lean it out. How much HP gain would I see from putting smaller NXL fuel jets in?

Black LS1 T/A

You are way low on power. I gained nearly 100 rwhp running At 11:3, rising to 11:7 at 6600 RPMs versus being at less than 10:1 thru most of the run.

Big difference.

MeanWS6

thanks for the reply. NA I dynoed 415rwhp, but on the 180 shot I only gained 80hp. NX said they sent me the wrong jets, and I just received the correct jets today. At 10:1 that is rich, but I do not want to go too lean and pop my motor. But they "think" this is where the 100rwhp went.
what do you think?

Ryan K

iTrader: (11)

Keep in mind some dyno AFR sensors only go down to 10:1. This really is too rich. A good "safe" AFR for nitrous is ~11.5:1-12:1 (my preference is the lower number).

Ryan K.

Black LS1 T/A

Yes... if you are below 10:1 A/F on the dyno, you could be that far off on power, more or less.