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Wide Band O2 Tuning

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72FordGTS View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 72FordGTS Quote  Post ReplyReply Direct Link To This Post Topic: Wide Band O2 Tuning
    Posted: 25-January-2020 at 7:20AM
I'd like to get a wide band tuner to help dial my carburetor really well.  Has anyone use one of these?  If so what would you recommend?  I was looking at Innovate LM-2 Digital Air/Fuel Ratio Meter Basic Kit from Summit.


Any opinions?
Vince

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Post Options Post Options   Thanks (0) Thanks(0)   Quote handsofstone Quote  Post ReplyReply Direct Link To This Post Posted: 25-January-2020 at 7:53AM
The reviews don't look very promising. I suppose for daily driving it would be fine. Definitely following this thread.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote californiajohnny Quote  Post ReplyReply Direct Link To This Post Posted: 25-January-2020 at 8:24AM
 i seem to remember somewhere on here carl or andy mentioning one??? a while back...
JOHN
74 GRAN TORINO S&H CLONE
74 VETTE CUSTOM
90 S10 BLAZER 4X4 LIFTED
77 CELICA CUSTOM
75 V8 MONZA SUPERCHARGED
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Post Options Post Options   Thanks (0) Thanks(0)   Quote aquartlow Quote  Post ReplyReply Direct Link To This Post Posted: 25-January-2020 at 1:41PM
I currently use a basic wideband from AEM, been a great tool in helping me tune my 770 and 870 Holleys, have had it about 6 years and no issues.
www.supermotors.net/22468
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 72FordGTS Quote  Post ReplyReply Direct Link To This Post Posted: 26-January-2020 at 2:10AM
John, I found a few old threads here about them, mentioning AEM and the LM-2.  Scott used the LM-2, but it does seem to have a spotty record based on reviews.  It also does more than I need it to do, since I am not interested in OBD2 stuff.



I just want something to dial in the carb really well.  At least with a A/F ratio I will know exactly if it is lean or rich under the various conditions.  


Originally posted by aquartlow aquartlow wrote:

I currently use a basic wideband from AEM, been a great tool in helping me tune my 770 and 870 Holleys, have had it about 6 years and no issues.

Todd, when you have some time, can you give me more details on your setup?  Do you have a gauge permanently mounted or just install it as you need it? AEM sounds like it may be a more economical choice than the LM-2.
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Post Options Post Options   Thanks (1) Thanks(1)   Quote aquartlow Quote  Post ReplyReply Direct Link To This Post Posted: 26-January-2020 at 3:02AM
Hey Vince,
 I use this one, AEM 30-4110 
AEM Electronics 30-4110 - AEM Electronics Wideband Air/Fuel UEGO Gauge Kits
Just a basic wideband with no frills, does work well for my needs though. I installed the gauge into my GT cluster where the clock once resided, non-working clock of course. I welded an 02 bung in each of my exhaust's header extensions, didn't want to drill into my 6126's, plugged the one on passenger side(wanted both in case I ever went EFI so I could use the wideband with the EFI). I can tell you that the wideband will show you where to focus your carb tuning, whether it be idle, off-idle or WOT. My 472 C6 combo gave me 15.2 mpg on my trip to Dawsonville a few years back, not bad for having no OD and a 280 Magnum Comp Cam(not exactly an mpg improver). You will find once you have the wideband installed and it's feedback, is when to quit "tuning" on the carburetor and just enjoy the ride and don't even think about installing 2 WB's(one for each bank of your V8) that will lead to sensory overload Ouch. The biggest gains I found in both my Holleys were in tuning the idle feed restrictors in the metering block, reducing main jet size and increasing power valve vacuum opening point and enlarging it's restrictor size under the valve to compensate for the leaner cruise mixture. Hope this is somewhat helpful.
www.supermotors.net/22468
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 72FordGTS Quote  Post ReplyReply Direct Link To This Post Posted: 26-January-2020 at 12:19PM
A big thank you Todd!  As usual your posts are very helpful.  I looked this kit up on Summit and it's reviews are far better than the LM-2.  The more I read, the more the AEM stuff seems to be spoken highly of, so this might be a better route.  I am thinking I might be able to fab something up to have a the gauge temporarily mounted for tuning, then I can remove it.  I'd buy a plug for the O2 sensor hole for when it's not in use.  

Vince

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Post Options Post Options   Thanks (0) Thanks(0)   Quote handsofstone Quote  Post ReplyReply Direct Link To This Post Posted: 26-January-2020 at 12:45PM
Looking forward to your install thread and review.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote californiajohnny Quote  Post ReplyReply Direct Link To This Post Posted: 26-January-2020 at 12:50PM
 AEM sounds familiar i think thats what carl mentioned???
JOHN
74 GRAN TORINO S&H CLONE
74 VETTE CUSTOM
90 S10 BLAZER 4X4 LIFTED
77 CELICA CUSTOM
75 V8 MONZA SUPERCHARGED
79 COURIER VERT. SLAMMED
75 VEGA V6 5 SPD
70 CHEV C10 P/U
68 MUSTANG FB CONVERSION
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