Afr

[GARY F]

Just wondering what's the ideal AFR on a Cossie, and what's considered to low?

[TREVCOS]

Okay, I'll be the thick one, what's an AFR?

[FletchCossie]

Air Fuel Ratio, Trev

Ive got a Stack gauge, but not used it yet. When its in the green it is safe

[TREVCOS]

Aha, all becomes clear.

[GARY F]

Air Fuel Ratio, Trev

Ive got a Stack gauge, but not used it yet. When its in the green it is safe

[SCS j1mbo]

What sensor or kit are you using?

[Tore_TJ]

I'd say high 11's are ok on full boost. Low 11's and below are too rich.
No doubt someone will come with cossie spec afr as every engine like it a bit different regarding spool up and additional cooling (fuel)

[Scouse]

I always thought it was 12/13:1



Scouse.

[Tore_TJ]

I always thought it was 12/13:1



Scouse.

Bit lean on full boost. low 12's give the most power iirc but I like to be safe

[neverenough]

I'm with Fletch, when mine is green I'm happy keeping my foot down. The specifics I'm not sure??

[1374lee]

I have a stack AFR guage with red and green warning lights aswell,low 12's/very high 11's I think is ok.Ask the experts/your tuner is best I would suggest.

Thanks.Lee.

[GARY F]

Just wondering tbh, does anyone know if Mike's monitors read the AFR?

[Swede]

On full boost u should be around 11.9afr and 14.7 are lambda 1 so that is optimal cruising target.

[hitchwest]

I'm after a afr gauge atm but they are bloody expensive aren't they and I know they are cheaper than a new engine but still very high priced

[SCS j1mbo]

swede, if you want a car that drives like shit then yeah lambda 1, but a cossie does not like it

13.5 - 13.7 afr they like!

on boost high 11s in the car is nice enough