[Official] "Do I need a tune with bolt-ons?" thread

[Chuck33079]

Originally Posted by Live4Driving

Isn't 11.7 very rich? My understanding is that, the higher the number, the leaner it was. From what I have seen, ideal power is 12.5 (rich) to 13.5 (lean) but under normal cruising and idle, you want to be around 14.7. I will start a new thread, to see if a proper title will garner more interest.

The number for ideal power is in ideal conditions. You need to leave enough headroom for gas, IAT and so on.

[jwick]

Originally Posted by Chuck33079

The number for ideal power is in ideal conditions. You need to leave enough headroom for gas, IAT and so on.

Mine might be in the low 12's but its not much leaner than that. I don't have an AFR gauge (well at least not NA I didn't) so I don't recall exactly since it's been over 3 years since I got her tuned.