A/F Meter Recommendations

[cwestra]

I'm  looking to buy an air fuel meter to dial-in my 6 barrel carbs.  Does anyone have any recommendations on an affordable and accurate unit?

[brads70]

I'm happy with my autometer version?

[David Weber]

I'm  looking to buy an air fuel meter to dial-in my 6 barrel carbs.  Does anyone have any recommendations on an affordable and accurate unit?

Are you looking to leave it or just tune with it?

This AEM combo gauge you can log data to your laptop. It is a Manifold pressure and AF gauge.

http://www.modernmuscleperformance.com/AEM_Wideband_Failsafe_Gauges_p/30-4900.htm

[cudabob496]

So, how beneficial is it to get an A/F meter? Am I missing out on power
by not having one?

[bandt]

They are the by far the easiest way to get your carb tuned spot on. Summit has an AEM set up for like 170$. If you are coughing on a rich idle or think you are leaving hp on the table A/F will tell you.

[cwestra]

Are you looking to leave it or just tune with it?

This AEM combo gauge you can log data to your laptop. It is a Manifold pressure and AF gauge.

http://www.modernmuscleperformance.com/AEM_Wideband_Failsafe_Gauges_p/30-4900.htm

Nice system, but probably more than what I need.  Looking for something that I can install just until I get it tuned then remove.  Nothing permanent.  Don't think I need the fail safe feature, although it's cool.  Need wide band though.

For those of you who have dialed in your car with an A/F meter, I'm assuming there is no great way of hiding the sensor hole in the exhaust pipe.  Since I plan to remove the sensor and related components after dialing in I won't have to worry about hiding them but I will have the plugged hole in the pipe that would seem to be a negative with respect to originality.  I suppose that is unavoidable.

Also, do I need to monitor each pipe separately?

[Jamiez]

Normally an exhaust shop will put in a bung so you can easily swap the sensor in or out.
Monitoring each pipe separately will make it more easy to get it dialed in as you'll know exactly which needs adjustment.
If you're looking for a temporary solution, there are some options that let you insert the sensor into the tailpipe or there are inline couplings you can insert into the system (if you can get the pipes apart).

[cwestra]

If you're looking for a temporary solution, there are some options that let you insert the sensor into the tailpipe or there are inline couplings you can insert into the system (if you can get the pipes apart).

That might be a good option for me.  Any recommendations on a source?

[Jamiez]

I bought a FAST one (my meter and sensor are all FAST).  Here is on JEGS:
http://www.jegs.com/i/FAST/244/170620/10002/-1?CAWELAID=1710555159&catargetid=1784158868&&cagpspn=pla&gclid=COiXgvioz7UCFe4-Mgod-lEAug

[cwestra]

I bought a FAST one (my meter and sensor are all FAST).  Here is on JEGS:
http://www.jegs.com/i/FAST/244/170620/10002/-1?CAWELAID=1710555159&catargetid=1784158868&&cagpspn=pla&gclid=COiXgvioz7UCFe4-Mgod-lEAug

Thanks.  Do you lose any accuracy by sensing so far back?

[Jesus H Chrysler]

If you have headers, just get another set of collectors and weld the bungs into them. When you're done simply swap your original collectors back on.  If you have a mint original exhaust you may want to consider picking up another cheaper setup so you don't ruin the original.  Otherwise have an exhaust shop weld the bungs on the inside of the pipe out of sight.  when you're done tuning you can remove the sensors and put plugs in.  The upside is your sensors will remain relatively new and you can use the system on another car, or sell it on.  Don't leave disconnected O2 sensors in the pipe because they'll get ruined fast.  BTW Bosch is known for high quality wideband O2 sensors.

[Adrian Worman]

I used an Innovate gauge in my challenger and I'm really happy with it, latest Bosch LSU4.9 sensor, they even have an iPhone link so you can record your drive and replay the AFRs in real time, amazing system

[BS CUDA]

I used an Innovate gauge in my challenger and I'm really happy with it, latest Bosch LSU4.9 sensor, they even have an iPhone link so you can record your drive and replay the AFRs in real time, amazing system

  I have run the Innovate for 2 years now and love it - wideband, data logging, and an excellent tuning tool.

[getslideways]

I have used the AEM UEGO sensor in a few turbo projects with the analog gauge.  For tuning i don't think the analog gauge is necessarily beneficial, however for me personally when driving i like to get any idea of what the car is doing with a quick glance.  So for me the analog needle gauge is easier than the digital readout.  Then again, i have never liked digital dashes from the 80's either.

I have used an innovate setup before in the past with good results too.

For the challenger i will probably go with the AEM Failsafe for its ease of logging and adjustability, or the Analog UEGO again.

[cudabob496]

Normally an exhaust shop will put in a bung so you can easily swap the sensor in or out.
Monitoring each pipe separately will make it more easy to get it dialed in as you'll know exactly which needs adjustment.
If you're looking for a temporary solution, there are some options that let you insert the sensor into the tailpipe or there are inline couplings you can insert into the system (if you can get the pipes apart).

Saw on Summit a bung that bolts to your exhaust, after you drill a small hole. No more need to go to exhaust shop.