AFR meters
Race Director
Joined: Sep 1999
Posts: 11,361
Likes: 383
From: Plano TX
Originally Posted by BigBlockk
You can get a wide band sensor at NAPA. Try to find the voltage for each A/F ratio step for this sensor. If you can get the voltages you can use a volt meter to read the sensor.
BigBlockk
Later.....
BigBlockk
Later.....
Racer
Joined: Apr 2006
Posts: 477
Likes: 43
From: Millbrae California
reading the spark plugs can work but you can only see the spark plug color for the rpm and load that you did the plug check at. spark plug reading is not as easy as it once was unless you are using race gas, unleaded gas does not leave color on a plug until the air/fuel mixture is very rich. I only read/look at the plugs for heat range and signs of detonation but do what works for you! i prefer to use modern technology
Team Owner
Joined: May 2001
Posts: 29,745
Likes: 3
From: Exiled to Richmond, VA - Finally sold my house in Murfreesboro, TN ?? Corner of "Bumf*&k and 'You've got a purdy mouth'."
CI 6-7-8 Veteran
CI-VIII Burnout Champ
St. Jude Donor '06-'10, '13
I am thinking of getting the LM1 or one of it's upgraded models to tune my drag race car. It will make tuning a lot faster, a lot easier and a lot more accurate.
With a wideband with record features it's like watching a video camera of your run. You can see if you were rich or lean right on launch, how the a/f ratio is at every RPM range, how the shift affects the car, look for tire spin - all sorts of info if you know how to read the data.
A lot more than can be gotten from just reading plugs at the end of the run.
With a wideband with record features it's like watching a video camera of your run. You can see if you were rich or lean right on launch, how the a/f ratio is at every RPM range, how the shift affects the car, look for tire spin - all sorts of info if you know how to read the data.
A lot more than can be gotten from just reading plugs at the end of the run.
Burning Brakes
Joined: Feb 2006
Posts: 1,024
Likes: 1
From: AL
Where are you guys installing the O2 sensor? I am about to install hooker header sidepipes and have seen only one photo with this setup and an O2 sensor. It was located on the top (12 o'clock) of the tubing just past the collector with a wire running through the vent in the fender. Not pretty! Is this the only place to locate the O2 on that type exhaust? Is this a temporary setup that can be removed after "dialing in"? Do both sides need an O2 sensor, or bung? Are two sensors required or will one do, changing sides to verify readings?
Thanks. . .
Thanks. . .
Racer
Joined: Apr 2006
Posts: 477
Likes: 43
From: Millbrae California
Originally Posted by S489
Where are you guys installing the O2 sensor? I am about to install hooker header sidepipes and have seen only one photo with this setup and an O2 sensor. It was located on the top (12 o'clock) of the tubing just past the collector with a wire running through the vent in the fender. Not pretty! Is this the only place to locate the O2 on that type exhaust? Is this a temporary setup that can be removed after "dialing in"? Do both sides need an O2 sensor, or bung? Are two sensors required or will one do, changing sides to verify readings?
Thanks. . .
Thanks. . .
Pro
Joined: Jan 2004
Posts: 535
Likes: 1
From: Darwin, Australia NT
Originally Posted by Solid LT1
LM-01 AFR is what I use. They are sold through Summit or Jegs, I would recommend the RPM/data logger output set-up too.
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Race Director
Joined: Mar 2001
Posts: 11,322
Likes: 1
From: Living in the Hartland
Originally Posted by S489
Where are you guys installing the O2 sensor? I am about to install hooker header sidepipes and have seen only one photo with this setup and an O2 sensor. It was located on the top (12 o'clock) of the tubing just past the collector with a wire running through the vent in the fender. Not pretty! Is this the only place to locate the O2 on that type exhaust? Is this a temporary setup that can be removed after "dialing in"? Do both sides need an O2 sensor, or bung? Are two sensors required or will one do, changing sides to verify readings?
Thanks. . .
Thanks. . .
You can mount it from 9-3 o'clock, this keeps water from pooling/condensing in it on cool down, only 'need' to have it on one side but some people use 2 to determine if one bank is running richer/leaner than the other
Burning Brakes
Joined: Mar 2004
Posts: 816
Likes: 1
From: Finland
Originally Posted by S489
Where are you guys installing the O2 sensor? I am about to install hooker header sidepipes and have seen only one photo with this setup and an O2 sensor. It was located on the top (12 o'clock) of the tubing just past the collector with a wire running through the vent in the fender. Not pretty! Is this the only place to locate the O2 on that type exhaust? Is this a temporary setup that can be removed after "dialing in"? Do both sides need an O2 sensor, or bung? Are two sensors required or will one do, changing sides to verify readings?
Thanks. . .
Thanks. . .
Team Owner
Joined: Apr 2006
Posts: 29,335
Likes: 51
From: Monterey, CA
Lots of good info. I don't have anything to add except to say that I installed an AEM wideband right after buying my car. I wanted a permanent unit that fit into a gauge pod. Works very well. I didn't even have to touch anything, as it appears that my car was previously tuned on a dyno.
Race Director
Joined: Sep 1999
Posts: 11,361
Likes: 383
From: Plano TX
Originally Posted by Simmo
Can I use the Innovate LM1 with out a laptop? my computers are macs and no doubt the software wont work.
Burning Brakes
Joined: Feb 2006
Posts: 1,024
Likes: 1
From: AL
Thanks for all the info; now i'll try to go get a little more educated.
Great link Vesa!!!
Thanks Fevre, i've seen one instruction say to install at least 10 deg above horizontal. either way, on the sidepipe that means no way to hide. this is not so bad to tune a carb, but would be dissappointing for an injected engine i think.
Great link Vesa!!!
Thanks Fevre, i've seen one instruction say to install at least 10 deg above horizontal. either way, on the sidepipe that means no way to hide. this is not so bad to tune a carb, but would be dissappointing for an injected engine i think.
Instructor
Joined: Oct 2003
Posts: 186
Likes: 0
Originally Posted by S489
on the sidepipe that means no way to hide. this is not so bad to tune a carb.
Burning Brakes
Joined: Jun 2004
Posts: 1,012
Likes: 5
From: Granbury, TX
I need to jump on board with the kudos for the LM-1. I installed nitrous on my 82 w/ TBI and there is precious little info on jet sizes for this setup. I made my first passes on NO2 and found I was running way rich at a F/A of 9.1. I'm gradually increasing my nitrous jet sizes, sneaking up on 12.5 to one. Without the LM-1 or similar, I would be shooting in the dark.
Plus you can print out the results in and impress your friends. I am really hooked now and thinking of adding the accelerometer package. With this you can generate HP data, just like having an on board dyno. You know the saying “Knowledge is power”, horsepower!
Plus you can print out the results in and impress your friends. I am really hooked now and thinking of adding the accelerometer package. With this you can generate HP data, just like having an on board dyno. You know the saying “Knowledge is power”, horsepower!
Melting Slicks
Joined: Jan 2001
Posts: 2,016
Likes: 31
From: Little Egg Harbor N.J.
Can these A/F meters be run by one person or do yu need someone to drive the car while another reads the meter?
Once I have my car running right I'd like to look into getting one of these meters to get the car set up to it's potential.
Thanks
Once I have my car running right I'd like to look into getting one of these meters to get the car set up to it's potential.
Thanks
Burning Brakes
Joined: Mar 2004
Posts: 816
Likes: 1
From: Finland
Originally Posted by 1996Z15
Can these A/F meters be run by one person or do yu need someone to drive the car while another reads the meter?
Once I have my car running right I'd like to look into getting one of these meters to get the car set up to it's potential.
Thanks
Once I have my car running right I'd like to look into getting one of these meters to get the car set up to it's potential.
Thanks
Race Director
Joined: Apr 2000
Posts: 17,676
Likes: 201
From: Who says "Nothing is impossible" ? I've been doing nothing for years.
It will record up to 20 minutes of A/F, RPM, Throttle postion and Manifold vacuum if you have the extra sensors. THen you can play it back on your computer or you can download a graph showing all the readings.
YOU can also look at it in real time with a digital readout on the meter itself or hook it up to a laptop and see all the measurements in realtime.
YOU can also look at it in real time with a digital readout on the meter itself or hook it up to a laptop and see all the measurements in realtime.