New to WIDEBAND A/F Meters, what ratio should I start tuning for?Got the PLX DM-5 AFR

[MarkAngelo05]

Hi there,

My PLX DM-5 AFR Combo is on its way. Just wanted to ask you all what air fuel ratio I should start tuning for? I Know my car runs pig rich, boosting 15psi with stage 3 keydiver chip and an AFC NEO. My keydiver chip is set for "11:1 WOT A/F Ratio" but I am not sure how accurate that is, so hopefuly I can FINE Tune my car a lot better and stop smelling unburnt fuel.. responses to this will be greatly appreciated. Thanks...


Thanks,

Mark

ps I searched and searched for a similar topic w/ info, but could not find it.

 

[GVR4592]

Not every car will respond the same way to A/F changes. I've found somewhere between 10.8 and 11.5 at peak torque usually works without causing too much knock. What are you using for fuel tuning and datalogging?

 

[Tony90TSI]

This is just my personal opinion but i think there is some REALLY good information for you here.

http://www.ls1tech.com/forums/showthread.php?t=263724&page=1&pp=20

I know its mainly V8 guys but they really do have some good info and explain everything out so that you gain some knowledge instead of just finding a number to shoot for.

 

[MarkAngelo05]

Not every car will respond the same way to A/F changes. I've found somewhere between 10.8 and 11.5 at peak torque usually works without causing too much knock. What are you using for fuel tuning and datalogging?

I'm using my AFC NEO to TUNE and keydiver's stage 3 chip for my 650cc injectors.. I was just curious to see what a/f ratio people are usually running with their widebands... I know that with the narrow band voltage, it can vary, some people can tune their cars to .86 narrowband o2 and have no knock at all because it varies with the car/o2 sensor they are using.... that is why I wanted to get a wideband because it is supposed to be more accurate and will read the actual A/F of the car and makes for NO guess work because it's the same for all cars...

thanks,

Mark