What is your WOT AFR when tuning for max power?

[pyro719]

What is your WOT AFR when tuning for max power? My car is at 13.5/1 seems to get faster with more fuel. Should I tune it to around 13.0?

[BLOWNDFIZ]

Seems about right for a PCMforless tune. Bryan tuned mine it ran great and I was right at 13.1. When I added nitrous I felt better having it 12.5 NA so that I didn't have to run as big of a fuel jet on spray so I sent it off for a re-flash and he nailed 12.5. I do think it made a little more NA power @ 13.1. I never dyno'd to prove but I lost a little trap speed (ever so slight that it could have been track or driver related though).

My other car I'm at 11.5-11.8 but that's with 14psi of boost.

[Tony Shepherd]

I tune N/A cars to 13.0

[pyro719]

Id like to get the afr to 13/1 if it will be saf on spray.

[Tony Shepherd]

Id like to get the afr to 13/1 if it will be saf on spray.

Tune it to 13.0 on motor and then nitrous tune it with jetting to get your 11.8 air/fuel. Make sure you read your plugs.