AFR or Lambda - Which is Better?

What should you tune your ride with? AFR or Lambda? Lets take a look at both and make a educated decision on which might be right for you. This follows the How to Use HP Tuners playlist thats packed with all sorts of information on the basics of tuning.

#afr #lambda #tuning

[robertjackson]

Finally some coherent information on Lambda and the whole EFI tuning in detail. Thanks so

[spelunkerd]

If optimal balance varies depending on the fuel, how does the oxygen sensor 'know' what fuel is present in the gas tank? Does the vehicle use alcohol sensors that feed back to the PCM, and then the PCM determines the optimum A/F that would be ideal with that mix, then it defines stoichiometric lambda of 1.0 to be the corrected ratio based on the fuel in the tank?

[khalidalhammadi]

nice man. keep up with the videos. thanks

[spreadhysteria]

Thank you very much, as a beginner might at as well start from lambda and get comfortable with it.

[frankmiller]

Did you make any videos regarding tuning a carb with a wideband? I can't seem to find any in your list.

[garypaschen]

If I have a guage that reads Lambda can I tune with Methanol, E85 or Q16 ?

[hassanabas]

If I was runing my forced induction setup on pump gas with an afr around 11.5 to 11.8 if I add let's say c16 and a water meth Inj nozzle system question is now since I am spraying water/ meth and at the same time using c16 in this situation I will have to see how much of the two fuels 50% to 50% or 70% to 30% whatever ratios i am blending to get an average afr ratio that suits me.
if I tune the same setup on lambda does this mean that I can I have 0.75 to 0.78 lambda no matter what I change c16, q16, ethanol, or any kind of blend c16 and water /meth, pump gas and water / meth, ....etc according to what I read I don't need to change anything in my tune same lambda same everything except ofcourse timing c16 will allow me to get past mbt am I correct or am I missing something here specifically with the water /meth injection I will be spraying through the intake manifold with a nozzle

[noampitlik]

So then the lambda method does the conversion for you, due to its technology?

[glensheridan]

I seen you said on boosted afr is 11 to 12, i have 6-71 blower with two new carburetors "650 avs2 elderbrock" under drivin crank pulley is 36 blower pulley 37 is my afr the same for what you said on boosted, I'm trying to tune my car no good dynos in area, thanks for your time

[christopherwright]

I have a 67 Mustang with a 289, Edelbrock Upper End kit and Edelbrock 1406 carb and an AEM AFR gauge. I have the tuning kit and have watched your videos. Great info! Car is finally running right (had a stumble) after doing some basic tuning and replacing the cheap Carter mechanical pump to an Edelbrock high performance mechanical pump (6 psi). Problem is car smells like its running rich ALL the time, even idling. My clothes wreak of rich exhaust. So my question is how to I properly tune the carb with the AFR gauge? I've been adjusting the air/fuel screws so the gauge reads 14.5-14.7 at idle. Obviously I can only adjust/tune at idle. But at cruise it's reading more like 12.5 - 3.0. Power/full throttle, 10-11. Can you give me range of what the AFR should be reading at Idle, Cruise and Power? Also, I plan to crack the carb open to change jets to match a lower cruise setting. I'm going to rebuild the carb while I'm at it. So far I've only changed metering rods and set up springs. Any input would be greatly appreciated.

[KarsNGuitars]

Do you need a chassis dyno to tune your car (for street use) using Lambda?

[billhood]

Awesome video. Do I need a wideband o2 sensor to accurately read in Lambda on my challenger. I have a i3 tuner which I'm currently working on my WOT fuel settings. Thanks