• Hello there guest and Welcome to The #1 Classic Mustang forum!
    To gain full access you must Register. Registration is free and it takes only a few moments to complete.
    Already a member? Login here then!

Tuning with a Wideband

6

65fast

Member
I got my current combination assembled at the end of the driving season last year and just bolted the carb (Edelbrock 600) on to get it running and driving. Now that the weather has started to turn, I have been able to get the car out and realized the carb was in need of some major adjustment. It was surging at cruise and bogging at WOT.

A buddy of mine suggested we put a o2 bung on my car, so last weekend he popped a hole in my exhaust welded up and o2 bung and hooked up his wideband tuner. For some reason we were not able to get an rpm signal, but were able to get A/F readings. It was great to have to see numerical results in the A/F readings instead of just seat of the pants feel. We got the idle and cruise circuits dialed pretty much perfect, but still need to make some adjustments on the secondaries as we were running short on time. Hope to figure out an RPM signal for next time too.

All in all, it was a much better experience using a wideband instead of seat of the pants!
 

Attachments

  • Wdbnd.JPG
    18.6 KB · Views: 70
Well , thats something that interest me alot.
I am thinking of doing this my ride also.
:thu :thu :thu :thu :thu
 
Yeah I need to buy a wideband for my car as well. Some of the widebands have datalogging capabilities as well, so it can monitor the A/F and RPMs as you drive around.
 
The one we were using had data logging capabilities as well (Hp Tuners I believe), but his laptop of course decided to not hold a charge and we couldn't get the rpm signal from the coil so just used the display on the box. It would be great to log, possibly next time.
 
I've been thinking of adding a wide band air/fuel gauge to my car. Where did you install the O2 sensor bung?

I was thinking it would pick up a/f readings on both sides of the engine if I were to install the O2 sensor in the x-pipe.
 
I put it on the passenger side exhaust about a foot before the x-pipe. I'm not sure if putting a sensor directly into the x pipe would have an effect on readings once exhaust gas start to swirl around in that section.
 
Would it be even better to add 2 O2 sensors, one for each side of the engine? Maybe not, because you can't tune a carb to deliver fuel differently to each side of the engine.
 
You'd need a dual channel wideband, like the Innovate LM-2. I believe it is typical to install the o2 sensors in the header collector assuming you have longtubes. The location 65fast installed his works just as fine as well.
 
I couldn't agree more so I got an AEM wideband gauge to install as a permanent part of my accessory gauges for when I drop the new engine in the car later this year so I will have a constant reading anytime the engine is running.
Mark
 
You must log in or register to reply here.
Back
Top