Good AFR for NA motor?

[sesso]

What are you people keeping a NA motor at for AFR? I am used to having a turbo and going with 12.0 to 11.5 but i am wondering if i should be running a leaner AFR with NA. I know 14.1 is like perfect but i want someones input.

[wickedcobra]

Dont know dude..........

[93mustank]

I would say starting from a 13.2 to a 12.5 for n/a.... And forced induction 12.3 to 11.5

I am talking about the rpm range.....

[ITLRUN]

Depending on your mods, you don't want to starve your motor. Are you running stock injectors? What year is your car? OBD1 uses a chip, unless your running a stand alone engine management system, then you can use a flash tuner. Setting your M.A.F. function, is the most critical part of your tune, if that is off your whole tune is off. Do you have use of a dyno, or lap top. One thing to remember, if tuning on a dyno, that's exactly what your doing your tuning your car to that particular dyno. The best way to do it is with a lap top, and have a friend with you it's kind of hard to see what's going on and drive at the same time. But you could start off somewhere around 13.4 - 13.6 at 5,500 RPM. If your running Denso's, or any other plug after you get it to this point, pull a couple of plugs towards the back of the motor, if they have a light tan color your there. The whole thing depends on your mods. And if your not running Denso plugs, yank them all your motor will thank you for it. Good luck, ITLRUN.

[sesso]

Yes I have a laptop and stuff ready but I don't have a wideband.

[Ruckus46gt]

12.7-12.9, normally the aim is a straightline 12.9 afr

[sesso]

I dont know how i would street tune with out a wideband unless i just watch for pulled timing. but I was used to having a wideband in my car.

[WildBill]

Depending on your mods, you don't want to starve your motor. Are you running stock injectors? What year is your car? OBD1 uses a chip, unless your running a stand alone engine management system, then you can use a flash tuner. Setting your M.A.F. function, is the most critical part of your tune, if that is off your whole tune is off. Do you have use of a dyno, or lap top. One thing to remember, if tuning on a dyno, that's exactly what your doing your tuning your car to that particular dyno. The best way to do it is with a lap top, and have a friend with you it's kind of hard to see what's going on and drive at the same time. But you could start off somewhere around 13.4 - 13.6 at 5,500 RPM. If your running Denso's, or any other plug after you get it to this point, pull a couple of plugs towards the back of the motor, if they have a light tan color your there. The whole thing depends on your mods. And if your not running Denso plugs, yank them all your motor will thank you for it. Good luck, ITLRUN.

DUDE!!!
You are SOOOOOOOO D A M N funny!

[The Nunn's]

DUDE!!!
You are SOOOOOOOO D A M N funny!

..+1

[fazm]

can we do custom user titles? lol

someone is in need of one... :)