quick question, if a car na has an a/f of 12.6 and you put a wet kit on it. say 140 shot, 56 nos 31 fuel jets, lets just say that with those jets the a/f stay at 12.6 while spraying. how rich would it get if i upped the fuel jets to 32,33, or 34. does anyone know what would it take to get the a.r down to 11.5, yes i know a wideband would be beneficial. but just looking to see how fat or lean it gets changin 1 jet size on the fuel side.

 

That is a good question.
I would like to know this myself.

 

On my TNT F1 kit, my 100hp jetting had me running about 12.7air/fuel. By swapping one fuel jet to the 150 from the 100 I dropped to 12.0 flat on the wideband.

 

thanks for the info, i want my a/r in the 11s so i was wondering what jets to use. fat is good.

 

Thanks from me too.

 

Try going up to the 33 jet. Start richer. If you dont want to get a wideband learn how to read your plugs. People were tuning cars and running all kinds of nitrous set-ups long before widebands exsisted. I know how to do both and think the wideband is a lot easier. Still look at the plugs from time to time though.