Predator A/F?

[King]

Car has a steeda cai and Prochamber only mods. Went to dyno today and it made 401hp/398trq. I was running the canned non-pulley performance tune with rev limiter raised to 6800. Is this about right on power for these mods and is this canned tune right for these few mods? What should my A/f been throughout the rpm range?

 

[U1arunit]

Shoot for 11.5-11-8 for A/F.

 

[Chucko]

Car has a steeda cai and Prochamber only mods. Went to dyno today and it made 401hp/398trq. I was running the canned non-pulley performance tune with rev limiter raised to 6800. Is this about right on power for these mods and is this canned tune right for these few mods? What should my A/f been throughout the rpm range?

If you were running the non-pulley 93 octane performance tune with a CAI and catback you're probably showing a somewhat lean AF on the dyno, especially at lower RPMs. I had to add 15% (rich) from 2-4k RPM and 5% from 4-7k RPM to get my AF relatively flat at about 11.8 or so.

I second the notion that somewhere around 11.7 is where you want your AF to be.