ok i am spraying a 125 dry kit and i bought a dynotune a/f shutoff switch and i have to set it for where i want it to shut the nitrous off if my car goes too lean...so what im asking is what would i wanna set it to shut off at, i was thinking 14.0 but i dont really know???

 

I have mine set at 13.0

 

12.0 is good, i dont think it should really get above 12 actually people told me 11.0-11.7 is optimum for a shot like that.

 

set it for 12.0- to 12.7 if it has a window if its just a lean shut off put it at 12.7

 

dont go any leaner then 11.7! i would shoot for 12.4+

 

ok thanks for the help guys!!!

 

I personaly would not want to be any leaner than 12.2 or so..
Dave

 

damn its getting lower and lower...i think its looking like a retune first..

 

Keep in mind guys that super fat tunes can hurt pistons just like super lean ones......

There are a few pro mod teams that run their big nitrous kits in the 13.5:1 zone and never hurt nothing.... I'm thinking that's on alchohol however which is more forgiving...

I plan on shooting for about 12.0 with my setup on the 150 shot and the 175 shot..... I'm going to go lower than that with the 200/225/250...... Stopping at about 11.2:1 with the 300 or higher....

 

Make sure you set the delay function for the lean spike or it wont ever spray...LOL

 

With a 125 id go btwn 11.7-12.3, shut off mid 12's