Can anyone clue me into what jets to run for a 125 shot on a TNT F2 plate setup? I only have the chart that shows 100 and 150. Thanks!

 

On my '96 Vette with LT4 heads, Hotcam, stock exhaust, 50psi fuel, 950psi N2O I found that with the TNT F1 setup that the supplied 75hp fuel jets (dual .018) and the supplied 100hp jets (dual .039) netted me a tick over 120RWHP (Dynojet). I was using the LT4 28lb. injectors at the time.

AFR was smooth around 12:1. N/A the AFR was about 12.8-12.9:1.

For comparison with the same setup as above (minus fuel/N2O jetting).. My initial "testing phase" of the TNT system used the 75hp fuel (.018) and 75hp N2O(.031). This combo netted 65RWHP at something below an AFR of 9.5:1

My point being... Make sure you are using a wideband O2 sensor and start conservatively. Too rich a mixture is unlikely to destroy your engine, too lean has a high probability.
Plus there's a lot you can play with to tune it "just right". Bottle pressure (provided you use a pressure switch) and fuel pressure are easy to adjust. Both can have a high impact on the end result.

Sorry I can't give you exact numbers for jetting.

 

Fuel

 

Fuel Nitrous
100hp 22 39
150hp 25 46


As far asI know TNT doesn't have 125hp jets, but I do not know that for sure. Those #'s are straight from the card from TNT.