AFR gauge

[Bitch'nBronco]

Thinking about installing an AFR gauge and want to know what you'd recommend. I'm in the military and we're looking at moving within the next 8 months ranging from Colorado to New Jersey. I think a wide band would save me time getting the afr/carb dialed in, and am unsure of the difference between wideband and narrow band AFR gauges. Thanks in advance.

 

[Broncobowsher]

Wideband is the only correct answer.
Engine masters just did a show on it. Short answer, any wideband is going to work just fine.

 

[rocknhorse76]

Innovate MTX-L wideband.

 

[pcf_mark]

X2 for Innovate

 

[Madgyver]

I've been wanting to do this AFR guage...
Do you need 2?
one for each bank?

 

[ba123]

If you have Dakota digital gauges, it will show right on there…assuming whatever you have can send it there. I have a Megasquirt with the Dakota MS Bim module to send that info.

Looks like they also have a module
https://www.dakotadigital.com/index.cfm/page/ptype=product/product_id=785/mode=prod/prd785.htm

 

[DirtDonk]

I've been wanting to do this AFR guage...
Do you need 2?
one for each bank?

With true dual exhaust, it's the best way to get full accuracy. But do you have to? Not really. It's just "better" to do one in each bank.
If you have a 2-into-1 exhaust, or even a dual with a connection (H-pipe, X-pipe, Crossover tube, etc) then you can more easily get away with a single I would think.

Paul

 

[Oldtimer]

One guage, two sensors.

DLG-1: Dual Lambda Wideband Air/Fuel Ratio Gauge Kit

DLG1 Dual Lambda Kit

www.innovatemotorsports.com

 

[Broncobowsher]

Unless you have something mechanically wrong, what the left bank puts out will be the same as the right bank.
If you are tuning cylinder to cylinder, multiple sensors. But the general overall picture, single sensor in either bank is fine.

If you can get someone with the motortrend app, the latest enginemasters ran a whole bunch of AFR stuff. Different brands, different locations, etc.

 

[Madgyver]

I have a Y connection 2-2.5" that goes to a single 3" inlet exhaust. Could I mount the single AFR port there?

 

[nvrstuk]

Been using my Autometer WB for 8 yrs. It has digital output of course but also a small ring of LED light around the outside so at a glance you can quickly see that you are rich or lean or right on .

I've heard of issues with other brands but my buddy who posted earlier about his (rocknhorse) hasn't had any issues.

 

[Bitch'nBronco]

Thanks everyone!

 

[rocknhorse76]

Been using my Autometer WB for 8 yrs. It has digital output of course but also a small ring of LED light around the outside so at a glance you can quickly see that you are rich or lean or right on .

I've heard of issues with other brands but my buddy who posted earlier about his (rocknhorse) hasn't had any issues.

Yeah my Innovate has been great as well. I run one sensor in the driver side down pipe ( only because it was the easiest side to mount in). It also has a digital display and a ring of LED’s like your Autometer. A cool feature is the ability to run it with either a white or black face.

 

[rocknhorse76]

I have a Y connection 2-2.5" that goes to a single 3" inlet exhaust. Could I mount the single AFR port there?

Not sure about other brands, but Innovate recommends mounting the sensor about 12” from the exhaust collector so that it still sees hot exhaust gases.

 

[Joe473]

Not sure about other brands, but Innovate recommends mounting the sensor about 12” from the exhaust collector so that it still sees hot exhaust gases.

I have had an innovate single for about 4 years. It's single but I put a bung in each down pipe and swapped it when I tuned carb initially. I thought I would take it out when done tuning but it saved my engine showing dead lean condition climbing an incline one day. Turned out my fuel pump was going bad.
Yes to about 8-12 inches from collector at an angle. Make sure no exhaust leaks even downstream. (Will read lean) Make sure the engine doesn't burn oil.

 

[Soylent]

I have had an innovate single for about 4 years. It's single but I put a bung in each down pipe and swapped it when I tuned carb initially. I thought I would take it out when done tuning but it saved my engine showing dead lean condition climbing an incline one day. Turned out my fuel pump was going bad.
Yes to about 8-12 inches from collector at an angle. Make sure no exhaust leaks even downstream. (Will read lean) Make sure the engine doesn't burn oil.

Angled towards the tailpipe 45 degrees?

 

[rocknhorse76]

I have had an innovate single for about 4 years. It's single but I put a bung in each down pipe and swapped it when I tuned carb initially. I thought I would take it out when done tuning but it saved my engine showing dead lean condition climbing an incline one day. Turned out my fuel pump was going bad.
Yes to about 8-12 inches from collector at an angle. Make sure no exhaust leaks even downstream. (Will read lean) Make sure the engine doesn't burn oil.

Yep oil will kill sensors quickly. Ask me how I know.

 

[m_m70]

I run two with true duals. Really helps with carb tuning. I run two only to help diagnose if there's a miss-fire or any other issues on each side.