Converting O2 voltage to A/F Ratio?
Thread Starter
Member
Joined: Jul 1999
Posts: 198
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From: schererville, IN
Car: 1992 Camaro Z28
Engine: 406
Transmission: T56
Axle/Gears: 4.10 GM 7.5 10-bolt
Converting O2 voltage to A/F Ratio?
I know that 450 mV is 14.7:1 and that the values change extremely fast on either side, but can you convert mV readings to A/F ratios?
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1992 Camaro Z28; Engine:383 w/Ported Edelbrock RPM heads. Lunati Solid Roller Cam 224/232 .502/.502, Fluidampr, Comp Cams 1.5 Roller rockers and lifters, Comp Cams Triple Valvesprings, SVO 30 lb injectors. Holley/Walbro 255 lph in-tank pump, Haltech E6GM DFI, SLP 1 3/4" headers, 4" Mufflex, T56, SLP Clutch, Pro-5.0 Shifter, 4.10 Gear, Auburn Offroad Pro Posi. Super Ram. 17" X 9.5" Ronal FireHawk Rims w/ 275 40ZR17 Bridgestone RE 730's up front and Nitto Drag NT 555R's out back.
Double-Pump This! EFI Rules!
------------------
1992 Camaro Z28; Engine:383 w/Ported Edelbrock RPM heads. Lunati Solid Roller Cam 224/232 .502/.502, Fluidampr, Comp Cams 1.5 Roller rockers and lifters, Comp Cams Triple Valvesprings, SVO 30 lb injectors. Holley/Walbro 255 lph in-tank pump, Haltech E6GM DFI, SLP 1 3/4" headers, 4" Mufflex, T56, SLP Clutch, Pro-5.0 Shifter, 4.10 Gear, Auburn Offroad Pro Posi. Super Ram. 17" X 9.5" Ronal FireHawk Rims w/ 275 40ZR17 Bridgestone RE 730's up front and Nitto Drag NT 555R's out back.
Double-Pump This! EFI Rules!
Member
Joined: Feb 2001
Posts: 223
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From: San Diego, CA
The short answer is no. the stock O2 sensore works great @ 14.7 but is VERY non linear @ the top & @ the bottom. there are some companies out there that will tell you that you can guess @ the AFR from the O2 reading but they are just educated guesses & they are +/- a LOT.
there is a long answer, a search of the archives will probably get you to it.
BW
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Bob Wooten
r71chevy@earthlink.net
www.r71camaro.homestead.com
there is a long answer, a search of the archives will probably get you to it.
BW
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Bob Wooten
r71chevy@earthlink.net
www.r71camaro.homestead.com
Supreme Member
Joined: Jun 2000
Posts: 7,554
Likes: 1
From: In reality
Car: An Ol Buick
Engine: Vsick
Transmission: Janis Tranny Yank Converter
<font face="Verdana, Arial" size="2">Originally posted by Bob Wooten:
The short answer is no. the stock O2 sensore works great @ 14.7 but is VERY non linear @ the top & @ the bottom. there are some companies out there that will tell you that you can guess @ the AFR from the O2 reading but they are just educated guesses & they are +/- a LOT.
there is a long answer, a search of the archives will probably get you to it.
BW
</font>
The short answer is no. the stock O2 sensore works great @ 14.7 but is VERY non linear @ the top & @ the bottom. there are some companies out there that will tell you that you can guess @ the AFR from the O2 reading but they are just educated guesses & they are +/- a LOT.
there is a long answer, a search of the archives will probably get you to it.
BW
</font>
So far they run at least 800, and usually closer to a Grand, but hopefully that will be changing soon!.
Thread Starter
Member
Joined: Jul 1999
Posts: 198
Likes: 0
From: schererville, IN
Car: 1992 Camaro Z28
Engine: 406
Transmission: T56
Axle/Gears: 4.10 GM 7.5 10-bolt
Thanks, that's what I thought and feared.
------------------
1992 Camaro Z28; Engine:383 w/Ported Edelbrock RPM heads. Lunati Solid Roller Cam 224/232 .502/.502, Fluidampr, Comp Cams 1.5 Roller rockers and lifters, Comp Cams Triple Valvesprings, SVO 30 lb injectors. Holley/Walbro 255 lph in-tank pump, Haltech E6GM DFI, SLP 1 3/4" headers, 4" Mufflex, T56, SLP Clutch, Pro-5.0 Shifter, 4.10 Gear, Auburn Offroad Pro Posi. Super Ram. 17" X 9.5" Ronal FireHawk Rims w/ 275 40ZR17 Bridgestone RE 730's up front and Nitto Drag NT 555R's out back.
Double-Pump This! EFI Rules!
------------------
1992 Camaro Z28; Engine:383 w/Ported Edelbrock RPM heads. Lunati Solid Roller Cam 224/232 .502/.502, Fluidampr, Comp Cams 1.5 Roller rockers and lifters, Comp Cams Triple Valvesprings, SVO 30 lb injectors. Holley/Walbro 255 lph in-tank pump, Haltech E6GM DFI, SLP 1 3/4" headers, 4" Mufflex, T56, SLP Clutch, Pro-5.0 Shifter, 4.10 Gear, Auburn Offroad Pro Posi. Super Ram. 17" X 9.5" Ronal FireHawk Rims w/ 275 40ZR17 Bridgestone RE 730's up front and Nitto Drag NT 555R's out back.
Double-Pump This! EFI Rules!
He has a ton of tricks up his sleeve.
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