has anyone ever used one of these? And if so, was it worth the effort? I think one side is running lean and the other is running leaner.
http://store.knfilters.com/airfuelmonitors.htm taken from the site
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has anyone ever used one of these? And if so, was it worth the effort? I think one side is running lean and the other is running leaner.
http://store.knfilters.com/airfuelmonitors.htm taken from the site
To
http://store.knfilters.com/airfuelmonitors.htm taken from the site
To
When I built a turbo system for my 2002 eclipse, i used one on each header bank, only because i was using a stand alone fuel system. I bought the Autometer ones and they worked fine. The only problem I had was the sudden change in air/fuel ratio when the car was under boost. It always seemed to give me a low ready then steady out.
Hope that helps...
Hope that helps...
I had similar unit on the exhaust of a new hot rod motor a few years back. It was interesting to watch while going thru the gears for sure.
Would I do it again???? NO, the time, money and effort just did not justify the thing. (Just my humble oppion of course)
Would I do it again???? NO, the time, money and effort just did not justify the thing. (Just my humble oppion of course)
she doesn't "sniff" it registers milivolts.
I've got one on my IM...different brand but similar deal. The O2 sensor is where the headers merge into one so it only measure the overall performance and not each side.
I think I got the guage off Ebay and the O2 sensor too....perhaps $60 for both? The bung I used was part of a metric hydraulic fitting that I had hanging around with the right internal thread size. Cut the part off the fitting the welded into the header.
I don't know that these types of guages are that accurate but its a starting point. A good shop type analyzer is going to cost quite a bit more. The o2 sensor I used is just the one wire model and I think I read that the 3 wire model is more accurate.
I think I got the guage off Ebay and the O2 sensor too....perhaps $60 for both? The bung I used was part of a metric hydraulic fitting that I had hanging around with the right internal thread size. Cut the part off the fitting the welded into the header.
I don't know that these types of guages are that accurate but its a starting point. A good shop type analyzer is going to cost quite a bit more. The o2 sensor I used is just the one wire model and I think I read that the 3 wire model is more accurate.
This is a narrow band sensor. Their readings change with temperature and all you really know is that you are above or below 14.7. You can get heated narrow band sensors which are better for idle but for a few dollars more you can get a heated wide band sensor with data logging. With that you can record air / fuel mixture and RPM and then play it back later. It
I have a Wide Band O2 sensor Air-Fuel Monitor made by NGK Spark Plugs.
Wide Band sensor feedback is instantaneous and feeds to a digital readout. You can watch A/F ratio as fast as the engine uses it.
It's the ONLY way to be absolutely sure how rich or lean your idle jet and main jet ranges are running. You can see the differences in A/F ratio from accelerator pump changes and "Stand on it"
acceleration vs rolling into wide open throttle. Using this tool I went from where I thought my carburetion was "perfect". I had to go down on the idle jets and 2 steps up on the Mains.
I thought it ran "perfect" before. Now it's "tits".
Go to aircooled.net and read the tech article on AFR.
Anyway, the NGK sensor and gauge is intended as a setup tool and comes with a long lead, and powers from a cig. lighter fused plug in. (or any convenient 12 volt source.) So it's portable.
I'll have it at Carlisle if anyone wants to try it. It's install is non-invasive enough to plug into anyones system that has a bung in their exhaust system.
Let me know.
Greg
Wide Band sensor feedback is instantaneous and feeds to a digital readout. You can watch A/F ratio as fast as the engine uses it.
It's the ONLY way to be absolutely sure how rich or lean your idle jet and main jet ranges are running. You can see the differences in A/F ratio from accelerator pump changes and "Stand on it"
acceleration vs rolling into wide open throttle. Using this tool I went from where I thought my carburetion was "perfect". I had to go down on the idle jets and 2 steps up on the Mains.
I thought it ran "perfect" before. Now it's "tits".
Go to aircooled.net and read the tech article on AFR.
Anyway, the NGK sensor and gauge is intended as a setup tool and comes with a long lead, and powers from a cig. lighter fused plug in. (or any convenient 12 volt source.) So it's portable.
I'll have it at Carlisle if anyone wants to try it. It's install is non-invasive enough to plug into anyones system that has a bung in their exhaust system.
Let me know.
Greg
not a wideband but a nice little package priced right;
http://www.3barracing.com/product_3.htm
http://www.3barracing.com/product_3.htm
The wide band from Innovate is excellent. On my last car (cobra replica) I had one that fed into the ECU I used to control my EFI. I could data log just about every temp and all sensors on the engine, and then run the system in EGO mode which would change the fuel maps automatically. Its a sweet setup but requires a lot of wiring. A lot of the carb'd guys ran one of the A/F sensors they use when you dyno your car and data logged on it (fits in the exhaust with a clamp).. great tool for tuning if your into that..
James
James