E-Bodies.org Cuda Challenger Forum

Technical Shop => Engine, Transmission & Rear End => Topic started by: VCODE on March 14, 2021, 12:42:11 PM

Title: Air/Fuel Mixture Tool
Post by: VCODE on March 14, 2021, 12:42:11 PM
Anyone have or is using a Air/Fuel mixture tool? Used for 70-71 Mopar's that you stick a probe into the end of the exhaust pipe. Not looking for the one that 02 sensors need to be installed into the front exhaust pipe like new cars have.
Bob
Title: Re: Air/Fuel Mixture Tool
Post by: GoodysGotaCuda on March 14, 2021, 03:45:38 PM
They make probes that stick an oxygen sensor in the tailpipe and is not permanent, they are used on dynos.

Seems like that would be what you want.
Title: Re: Air/Fuel Mixture Tool
Post by: VCODE on March 14, 2021, 04:09:12 PM
Quote from: GoodysGotaCuda on March 14, 2021, 03:45:38 PM
They make probes that stick an oxygen sensor in the tailpipe and is not permanent, they are used on dynos.

Seems like that would be what you want.

That's it, was not thinking dyno. I remember the old Sun machines had them.
Thanks Bob
Title: Re: Air/Fuel Mixture Tool
Post by: dodj on March 14, 2021, 06:09:37 PM
Something like this?
https://www.innovatemotorsports.com/resources/news3.php
Title: Re: Air/Fuel Mixture Tool
Post by: Rich G. on March 14, 2021, 06:19:53 PM
Old style emission tester just test Hc and co. Had one back in my father's gas station days
Title: Re: Air/Fuel Mixture Tool
Post by: TWOBOLTS on March 14, 2021, 09:29:31 PM
https://shop.snapon.com/product/Handheld-Gas-Analyzers/Handheld-Gas-Analyzer-(5-Gas)/HHGA5C
Title: Re: Air/Fuel Mixture Tool
Post by: 1 Wild R/T on March 14, 2021, 10:30:05 PM
Sensor mount

https://www.summitracing.com/parts/inn-3728?seid=srese1&gclid=CjwKCAiAhbeCBhBcEiwAkv2cY4TatoQxpxxYx8VsS2ZQtc2oZVUoPS6-mWC4Mqd-syHORVEFbpLiuBoCW6UQAvD_BwE

Basic gauge & sensor

https://www.summitracing.com/parts/inn-3918

18 ft extension to connect senor at the back of the car to a gauge in the car...

https://www.summitracing.com/parts/inn-3828?cm_mmc=ppc-google-_-search-_-brands-_-keyword&gclid=CjwKCAiAhbeCBhBcEiwAkv2cY0mqKnJ29SXkTNUWbf1obEOSXy0trDuy9wv2G2Ax1R3wqt-OtqtAfBoCJuQQAvD_BwE

Title: Re: Air/Fuel Mixture Tool
Post by: VCODE on March 15, 2021, 05:12:28 AM
Quote from: 1 Wild R/T on March 14, 2021, 10:30:05 PM
Sensor mount

https://www.summitracing.com/parts/inn-3728?seid=srese1&gclid=CjwKCAiAhbeCBhBcEiwAkv2cY4TatoQxpxxYx8VsS2ZQtc2oZVUoPS6-mWC4Mqd-syHORVEFbpLiuBoCW6UQAvD_BwE

Basic gauge & sensor

https://www.summitracing.com/parts/inn-3918

18 ft extension to connect senor at the back of the car to a gauge in the car...

https://www.summitracing.com/parts/inn-3828?cm_mmc=ppc-google-_-search-_-brands-_-keyword&gclid=CjwKCAiAhbeCBhBcEiwAkv2cY0mqKnJ29SXkTNUWbf1obEOSXy0trDuy9wv2G2Ax1R3wqt-OtqtAfBoCJuQQAvD_BwE

Thanks to everyone. Great options, looks like the Innovate setup will work good.
Bob
Title: Re: Air/Fuel Mixture Tool
Post by: VCODE on March 15, 2021, 06:10:42 AM
I just spoke with a Tech at Innovate. He is telling me that putting the o2 sensor in the tailpipe will not work. It is only good for dyno at wide open throttle. What do you guys think. Not used at idle or mid range.
Thanks Bob
Title: Re: Air/Fuel Mixture Tool
Post by: RUNCHARGER on March 15, 2021, 07:04:04 AM
Probably need more volume so the fumes don't get mixed in with the atmosphere outside the tailpipes. They like the O2 sensor as close to the header as possible with no exhaust leaks on the regular install.
Title: Re: Air/Fuel Mixture Tool
Post by: VCODE on March 15, 2021, 07:25:07 AM
Quote from: RUNCHARGER on March 15, 2021, 07:04:04 AM
Probably need more volume so the fumes don't get mixed in with the atmosphere outside the tailpipes. They like the O2 sensor as close to the header as possible with no exhaust leaks on the regular install.

Thanks, Exactly what he was saying.
Title: Re: Air/Fuel Mixture Tool
Post by: RUNCHARGER on March 15, 2021, 07:52:40 AM
I remember the Chrysler dealership style setups though.
Title: Re: Air/Fuel Mixture Tool
Post by: 1 Wild R/T on March 15, 2021, 08:21:46 AM
Quote from: VCODE on March 15, 2021, 06:10:42 AM
I just spoke with a Tech at Innovate. He is telling me that putting the o2 sensor in the tailpipe will not work. It is only good for dyno at wide open throttle. What do you guys think. Not used at idle or mid range.
Thanks Bob

I saw something about that while looking for part numbers yesterday... A few guys said they had added length to the probe so the sampling was taken further up the exhaust pipe & that it works well...  It was suggested that standard brass compression fittings and a length of copper tubing worked fine..
Title: Re: Air/Fuel Mixture Tool
Post by: HP_Cuda on March 15, 2021, 09:31:59 AM

I cringe when I see that holding that tailpipe mount in will go up against my chrome tips!

Hell no!

It's better to just use the standard O2 setup anyway.

B
Title: Re: Air/Fuel Mixture Tool
Post by: Scooter on March 16, 2021, 12:51:27 PM
I bought one of those Innovative setups years back with intent to put it in my Fairlane, it sat on the shelf for quite some time. Ended up putting it on the Challenger a few months back.. it's worth every cent to get real-time telemetry as you drive IMHO.

(https://www.thelightninground.com/filedata/fetch?id=1795&d=1598729359)

Even if you do not want it in the car permanently, get the bung for the O2 sensor installed and you can put the readout gauge on the floor until you get the the tune dialed in. Then just plug the exhaust bung when you are done and remove the cable. Toss it back in  when you want to re-tune.

My2c.   
Title: Re: Air/Fuel Mixture Tool
Post by: RUNCHARGER on March 16, 2021, 04:54:36 PM
The bung is a problem on a stock car. I did the same though I mounted it temporary, ran the cable through a drain plug in the floor. I found I ended up the same as by doing it trial and error, it just gets you there a lot faster.
Title: Re: Air/Fuel Mixture Tool
Post by: VCODE on March 17, 2021, 11:07:07 AM
I understand. Just that the cars are show cars, not wanting to install the bungs.
Thanks Bob
Title: Re: Air/Fuel Mixture Tool
Post by: blown motor on August 03, 2021, 10:23:20 AM
What is a good brand or model of O2 sensor to mount in the exhaust?