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Registered
Join Date: May 2004
Location: washington,DC
Posts: 1,087
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best wideband O2 set-up?
l`m about to buy one of these to tune my 3.2 turbo conversion and l`ve been thinking l`d go with the LM-1 but there are others out there too.Does anyone have any direct experience with any of these? Also l`ve got two sensor bungs on my exhaust and l need to decide where to put the stock sensor and where to put the wideband.One bung is just before the turbo on the B&B 930 headers and the other is just on the exit pipe of the muffler.Any help appreciated...
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my life begins at 150MPH |
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04-24-2005, 10:22 AM
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Registered
Join Date: Nov 2003
Location: Lancaster, PA
Posts: 262
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I am also hoping to pick up a wideband O2 kit very soon. I am leaning toward the Dynojet wideband commander. It is competitively priced with the LM-1 and comes with a guage. It appears to be a permanent install, where the LM-1 appears to be a temporary tuning tool.
http://www.widebandcommander.com/ Innovate now sells the LC-1. Although I am not sure how it differs from the LM-1. I think it is strictly used to drive a guage or EFI system. http://www.innovatemotorsports.com/xcart/customer/home.php?cat=253 If anyone has any of these installed in their car please chime in with comments.
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rhk109 '76 911 3.0 Webers |
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04-24-2005, 03:52 PM
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Navin Johnson
Join Date: Mar 2002
Location: Wantagh, NY
Posts: 8,804
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Use the post turbo bung, if you place the sensor pre turbo, you will get skewed readings. The pressure, and higher temps (pre turbo) will give false readings.
Beside the Innovate, and Dynojet. PLX, Lindsey Racing, FJO, and others make some good WBo2s
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Don't feed the trolls. Don't quote the trolls  http://www.southshoreperformanceny.com '69 911 GT-5 '75 914 GT-3 and others |
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04-24-2005, 04:07 PM
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Registered
Join Date: Jun 2003
Location: Mineral, Va.
Posts: 171
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I just put a PLX M-300 on my 82 SC this weekend. They appear to be designed to use all the time. The unit includes two outputs in addition to the visual display, one provides wide band output and the other provides narrow band output. You can simply replace your existing o2 sensor and then connect the narrow band output to your ECU. Everything still works normally, except you have a digital readout of your AFR. The documentation does recommend installing the sensor downstream of a turbo.
My car is running one of TBITZ's CIS to EFI kits, and the megasquirt ECU that came with the kit will accept a wide band o2 sensor or a narrow band unit. The PLX feedig Megasquirt a wide band signal lets me set whatever AFR I want the unit to maintain. When using a narrow band sensor it will only try and maintain a 14.7:1 ratio. -Mac |
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04-24-2005, 06:06 PM
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