WideBand 02 Results
#1225590
05/01/12 08:07 PM
05/01/12 08:07 PM
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Joined: Jan 2003
Posts: 3,831 N.E. Ohio
6bblFLASH
OP
master
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OP
master
Joined: Jan 2003
Posts: 3,831
N.E. Ohio
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Finally got the Innovate Wideband 02 in AND working properly. Took it out for its 1st drive. Idle 13.5--14.5 Cruise 11.7--12.2 rich Power 13.5 steady too lean. So now the chase begins. Max power is pretty easy to fix,cruise may be more of a challenge.
70` Cuda`,440 6BBL Jerico,Dana 4.56 Still on 93 Pump Gas 9.87 @ 136/1.31-60ft.`09 Mopar Nationals PASSON PERFORMANCE "Stick-Shift" Champ! 2013 StickShift Challenge Winner@ Mopar Nationals!
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Re: WideBand 02 Results
[Re: 6bblFLASH]
#1225592
05/01/12 09:01 PM
05/01/12 09:01 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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I dont even waste my time using it for idle... get it so it idles nice then take a reading... like you said cruise is always the harder part
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Re: WideBand 02 Results
[Re: 6bblFLASH]
#1225595
05/01/12 10:41 PM
05/01/12 10:41 PM
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Joined: Jul 2004
Posts: 19,318 State of confusion
Thumperdart
I Live Here
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I Live Here
Joined: Jul 2004
Posts: 19,318
State of confusion
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I don`t focus too much on idle either as long as it`s crisp and clean and doesn`t load up I`m cool w/that...........cruise however is a bear w/my 1050 which varies a bit bet. 11.8-12.5 accordingly and wot is around 12.5-12.8.................
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
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Re: WideBand 02 Results
[Re: Thumperdart]
#1225596
05/01/12 11:11 PM
05/01/12 11:11 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Even at WOT I still run for best MPH then take a reading so its easier to get back to that if I change something... cruise is always the hard point... is it on the level... up a minor grade... it all plays in
Last edited by MR_P_BODY; 05/01/12 11:13 PM.
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Re: WideBand 02 Results
[Re: Mr.Yuck]
#1225600
05/02/12 08:41 AM
05/02/12 08:41 AM
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Joined: Jan 2003
Posts: 2,926 A shed in England
Tig
master
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master
Joined: Jan 2003
Posts: 2,926
A shed in England
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Sorry to Hijack but here's a lttle tip. DO NOT leave the plastics protective covers on the end of your O2 sensors, while you turn the power on checking out your new ignition system. The sensor heaters will melt them and damage the sensors. Dont ask me how I know
'74 Challenger..9.46 @ 145.9 1/4, 6.001 @ 118 1/8 so far. 4023lb !!! # N/A, Marsh performance 655ci, Indy Maxx, T/R, Indy 600-13 X's, Street legal, pump gas, full interior, Cal-Tracs, mufflers, 3:73's and real 10.5 radials. 9.51 @ 142.4 1/4, 6.003 @ 114 1/8 with our old mule KB, 572-13, 580 wedge. RHD '68 Barracuda Fastback 323ci street/strip. Best ET 13.88 @ 99.03
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Re: WideBand 02 Results
[Re: 67_Satellite]
#1225602
05/02/12 10:19 AM
05/02/12 10:19 AM
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Joined: Nov 2003
Posts: 3,443 Dandridge TN
Dabee
master
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master
Joined: Nov 2003
Posts: 3,443
Dandridge TN
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Quote:
Bear in mind that if you have a "perfect" 14.7:1 a.f.r. at cruise, you'll probably have a few lean and rich cylinders somewhere. I got to the high 13's at cruise and called it good enough. I have my o2 sensor mounted 12" from the turbine outlet, so I know all the exhaust is thoroughly mixed by then.
If you are running 10% ethanol pump gas your ideal AFR is 14.1 to 1.
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Re: WideBand 02 Results
[Re: Dabee]
#1225604
05/02/12 02:37 PM
05/02/12 02:37 PM
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Joined: May 2008
Posts: 1,131 Thigh-Gap Junction
@#$%&*!
New user name, Same old jerk!
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New user name, Same old jerk!
Joined: May 2008
Posts: 1,131
Thigh-Gap Junction
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Quote:
If you are running 10% ethanol pump gas your ideal AFR is 14.1 to 1.
While that may be technically true you can only use that info IF your wideband system is SET with a 14.1:1 stoich value. If your system is set to display gasoline stoich of 14.7:1 you can still use 14.7 as a stoich value when reading the numbers displayed regardless what fuel you're using. Wideband systems measure oxygen presence and produce a variable numerical output value represented by the Greek letter Lambda. The value for Lambda at stoichiometry is 1.00. If the wideband system user sets the device to display s stoichiometry value of 14.7 (or any other number) the device simply multiplies Lambda by 14.7 (or whatever number is used). This does not change anything about how the device makes the measurement and the device does not care what fuel is being used. Whoever created that chart was well-meaning and technically correct but has created a communication nightmare where now people can't disuss AFRs without stating what stoich value the reading was taken with (and requiring math to convert to ones familiar scale). It would be much better if everyone just used Lambda (1.00) or 14.7, regardless what fuel is being used. The wideband system doesn't know or care.
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Re: WideBand 02 Results
[Re: 6bblFLASH]
#1225605
05/02/12 04:00 PM
05/02/12 04:00 PM
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Joined: Aug 2003
Posts: 43,230 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,230
Bend,OR USA
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Quote:
Finally got the Innovate Wideband 02 in AND working properly. Took it out for its 1st drive. Idle 13.5--14.5 Cruise 11.7--12.2 rich Power 13.5 steady too lean.
So now the chase begins. Max power is pretty easy to fix,cruise may be more of a challenge.
I'm going to assume when you say power you mean at W.O.T., if not what do you mean? Your idle AFR are good, I do run my pump gas motor leaner than that, 14.8 to 16.0 depending on outside air temps as far as cruise I like an duse real close to 13.8 to 15.0, WOT I shoot for 12.8 to 13.3, not the best for a boosted motor so I would shoot for 12.2 to maybe as lean as 12.8, depending on what the spark plugs look like( all eight plugs) It is way safer to start out rich and then slowly lean it down to where you like it The transition circuits are real fun to tune
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: WideBand 02 Results
[Re: @#$%&*!]
#1225608
05/02/12 10:28 PM
05/02/12 10:28 PM
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Joined: Jan 2003
Posts: 16,928 NC
440Jim
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,928
NC
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Quote:
The wideband <oxygen> system doesn't know or care.
That is the beauty of the wide band oxygen sensor system. I have used my wide band oxygen sensor with race gasoline, alky (methanol) and E-85 ethanol. It measures Lambda, I typically display A/F based on 14.7 (gasoline) since those numbers are in my head. I don't bother converting to actual A/F for the various fuels; as long as you know what numbers to look for, it don't matter. And the absolute number isn't all that important anyway, just a range.
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Re: WideBand 02 Results
[Re: @#$%&*!]
#1225609
05/02/12 11:26 PM
05/02/12 11:26 PM
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Joined: Nov 2003
Posts: 3,443 Dandridge TN
Dabee
master
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master
Joined: Nov 2003
Posts: 3,443
Dandridge TN
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Quote:
Quote:
If you are running 10% ethanol pump gas your ideal AFR is 14.1 to 1.
While that may be technically true you can only use that info IF your wideband system is SET with a 14.1:1 stoich value. If your system is set to display gasoline stoich of 14.7:1 you can still use 14.7 as a stoich value when reading the numbers displayed regardless what fuel you're using. Wideband systems measure oxygen presence and produce a variable numerical output value represented by the Greek letter Lambda. The value for Lambda at stoichiometry is 1.00. If the wideband system user sets the device to display s stoichiometry value of 14.7 (or any other number) the device simply multiplies Lambda by 14.7 (or whatever number is used). This does not change anything about how the device makes the measurement and the device does not care what fuel is being used. Whoever created that chart was well-meaning and technically correct but has created a communication nightmare where now people can't disuss AFRs without stating what stoich value the reading was taken with (and requiring math to convert to ones familiar scale). It would be much better if everyone just used Lambda (1.00) or 14.7, regardless what fuel is being used. The wideband system doesn't know or care.
Agree, that is why I have my wideband set to display the Lambda number.
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