Air fuel ratio nitrous

[71_dart_swinger]

so what kind of air fuel ratio do your guys big blocks like with nitrous. I’ve been reading some say low 11s. Last time on dyno it was tuned 12.5 with 150 nx plate. Got just over 100 whp on 150 jets.. I’m going to go try to tune it best I can before I go back to dyno. I just put on a brawler 950. Different intake and some other things. It had Holley 750 street hp last time on dyno. What do you guys consider too rich? Thanks

 

[Dana67Dart]

I would assume that if the HP goes down you're too rich.

 

[crackedback]

Get the carb tuning spot on, figure out the A/F that the engine likes. The nitrous tune should be very close to what it likes on carb only.

Unless the car was forced induction, I doubt it would like an AF in the 11's.

 

[71_dart_swinger]

Get the carb tuning spot on, figure out the A/F that the engine likes. The nitrous tune should be very close to what it likes on carb only.

Unless the car was forced induction, I doubt it would like an AF in the 11's.

Just got back from messing around a bit. Timing strap on plug was a bit to advanced.. close to threads. Aem gauge was hovering around 12.7 wot 150 shot. Plugs looked a tad hot/lean. ??