AFR Setup Opinions?

[70SwingerGuy]

So Ive been looking around at AFR units lately, particularly This One Here and was wondering what you guys who run AFR's think of them. Are they worth the money, are you happy with what youve got, has it helped you out in tuning?
Any opinions welcome!

 

[GTX JOHN]

Does it require Unleaded Gas?

 

[70SwingerGuy]

Does it require Unleaded Gas?

It actually doesnt say in the description on the Autometer site, it just states that its designed and suitable for gasoline powered engines. But I have read that its not good to use leaded gas with an AFR system.
This particular unit is designed for street machines

 

[RustyRatRod]

It actually doesnt say in the description on the Autometer site, it just states that its designed and suitable for gasoline powered engines. But I have read that its not good to use leaded gas with an AFR system.
This particular unit is designed for street machines

Right in the PDF instructions:

"The Air / Fuel Ratio Monitor is intended for use with unleaded gasoline."

 

[jas0162]

I bought one years ago and love it. You can really dial in your jetting, and it’s just fun to watch when you are driving around.

 

[70SwingerGuy]

Right in the PDF instructions:

"The Air / Fuel Ratio Monitor is intended for use with unleaded gasoline."

Thanks Rusty, I hadnt read that far into the instructions yet, just the basic description, but I had assumed that it was for unleaded fuel since I read that leaded gas can cause problems with them

 

[72bluNblu]

I first started running an AFR gauge on my Duster almost 12 years ago. First one was a Summit branded version of Innovate's LC1, seen here

That one lasted until July of last year! I replaced it with an LC2, keeping the original gauge
Innovate Motorsports 3796 Innovate DB Digital Wideband Air/Fuel Ratio Gauge with LC-2 Kits | Summit Racing

They're VERY helpful in dialing in the carb tuning. More than that though, even after you have your carb tuned in they can be very helpful for diagnosing issues that come up if you're familiar with what your normal range of readings are. So if something changes suddenly with your fuel delivery, ignition or engine health you know immediately. It's alerted me twice now to internally leaking gaskets in my carb.

 

[goldduster318]

I had an Innovate LC1 and it seemed like there was some strange driveability issue (EFI with closed loop), at the suggestion of "Sloppy Mechanics" who builds a lot of turbo LS EFI vehicles, I went to the AEM wideband and that has worked perfectly.

I believe I have this one: https://www.aemelectronics.com/prod...xvqGUuSq2cZ4_uLysmNjpDe946QiL10RoC9FIQAvD_BwE

 

[MadScientistMat]

Wideband sensors typically need to be changed every 50 hours of use if you're running leaded race gas.

 

[70SwingerGuy]

Wideband sensors typically need to be changed every 50 hours of use if you're running leaded race gas.

Only unleaded pump gas here with a lead-free octane boost added

 

[70SwingerGuy]

I first started running an AFR gauge on my Duster almost 12 years ago. First one was a Summit branded version of Innovate's LC1, seen here

That one lasted until July of last year! I replaced it with an LC2, keeping the original gauge
Innovate Motorsports 3796 Innovate DB Digital Wideband Air/Fuel Ratio Gauge with LC-2 Kits | Summit Racing

They're VERY helpful in dialing in the carb tuning. More than that though, even after you have your carb tuned in they can be very helpful for diagnosing issues that come up if you're familiar with what your normal range of readings are. So if something changes suddenly with your fuel delivery, ignition or engine health you know immediately. It's alerted me twice now to internally leaking gaskets in my carb.

Thank you for this! It was very helpful indeed.

 

[72bluNblu]

I had an Innovate LC1 and it seemed like there was some strange driveability issue (EFI with closed loop), at the suggestion of "Sloppy Mechanics" who builds a lot of turbo LS EFI vehicles, I went to the AEM wideband and that has worked perfectly.

I believe I have this one: https://www.aemelectronics.com/prod...xvqGUuSq2cZ4_uLysmNjpDe946QiL10RoC9FIQAvD_BwE

Interesting. So like an issue with the LC1 talking to the ECU for the EFI?

Mine just runs the gauge obviously and it's been fine for that, but I haven't tried feeding into an ECU or even a data logger for that matter, I just go off the gauge readings. Definitely not using it to its full potential, but even at that level it's quite an improvement over reading spark plugs for tuning.

 

[goldduster318]

My opinion is there's some error in either the reading or the refresh rate because the tune would always get some weird spots in it. But I have all the data in real-time where you don't have it when you tune a carb. I usually used the VE analyze so it's not even usually me making manual changes. Once I switched to the AEM it was spot on after a few loops of tuning. I did small amounts of manual tuning and some smoothing and I've basically not touched it in years...and I have it allowed to do corrections and it makes it even better.

 

[70SwingerGuy]

Thanks to everyone for all the info, greatly appreciated and helpful.
Cheers!!

 

[Icetech]

I have a ballenger AFR500 i will be installing in the spring.. will be nice to have numbers to work with. On my EFI cars it made life sooo easy