Computer Diagnostics and Tuning Technical discussion on diagnostics and programming of the F-body computers

Datalogging for boost

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Old Sep 19, 2007 | 10:46 AM
  #1  
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Datalogging for boost

What type of datalogging program do you have to get to log boost?
Old Sep 19, 2007 | 11:08 AM
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Just boost? I think some of the fancy electronic boost controllers do it.....

My standalone does.
Old Sep 19, 2007 | 11:18 AM
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Not necessarily just boost, although if there was something like that at a reasonable price that might be OK.
Old Sep 19, 2007 | 06:42 PM
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Are you running a 2 bar MAP sensor? If so, your MAP readings from any scanner or data logging program will provide a way to measure boost. Will take a bit of translation on the voltages, but that's not too hard to do.
Old Sep 19, 2007 | 08:37 PM
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No, I just have the stock 1 bar MAP sensor. I can see why a 2 bar would be necessary to measure boost that way.

Last edited by David94TA; Sep 19, 2007 at 08:46 PM.
Old Sep 20, 2007 | 10:16 AM
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There are a few wideband controllers that allow you to log other sensors simultaneously with the A/F ratio. Simply find a location for a 2 bar MAP sensor (any full-vacuum port, with a large diameter nipple), connect it with the largest diameter, shortest length hose possible, and feed the output of that sensor to the logging wideband controller. You would also want RPM, so you could correlate the data to the PCM data.

Or find an unused channel in the stock PCM. How about the oil temp channel? There is no oil temp sensor on an F-Body, but there is one on the Corvette, and the F-Body PCM appears to provide scan data for the oil temp channel.
Old Sep 20, 2007 | 02:44 PM
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OK, Thanks.
Old Sep 21, 2007 | 12:29 AM
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I use an Innovate LM-1 with their Auxbox (LMA-3 I believe) to log boost. You can also log 3 other sensor inputs in addition to the wideband output.
Old Sep 21, 2007 | 05:09 AM
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you could use a MS1 to datalog MAP. cost 130 buck unassembled. you will also be able to log the RPM. really no point in logging MAP without RPM. you can also get a LC1 wideband with lambda sensor and log air/fuel ratio. hell you could get the display as well and watch your stuff in real time. you will need a laptop or palm pilot to log.

you could even go all out and have that control your fuel .

Last edited by 1fastgixxer; Sep 21, 2007 at 06:17 AM.
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