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Microtech datalogging AFR with LT8s

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Old 12-02-04, 12:59 AM
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datalogging AFR with LT8s

Does anyone have any success doin this? i read on previous threads on making the 0-1v signal to go into the microtech.

i have a LT8s and a tech edge 1.5 wideband....

if u cant datalog your afr with your LT8s , how did u guys tune your car?
Old 12-02-04, 12:29 PM
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From what I understand from more knowledgable sources, you CAN datalog AFRs with the LT8. Now the trick is datalogging a true WB signal. The LT8 will only log a 0-1v signal as you noted. But if you can get a WB signal into a true 0-1v, then the LT8 theoretically would log a WB signal. The trick is that not all 0-1v WB signals are the same -- some are linear, some are not. I think for the best accuracy, you'd want a linear signal -- there is some controversy on whether or not the Techedge can produce a true linear 0-1v WB signal.

My advice? Try it and see and let us know.

I CAN tell you that I am myself going w/ the TE + LT8 setup w/ a Bosch 7057 sensor. Car is not assembled yet though, so I have no personal experiences to give you unfortunately.

I will be running with TE's AFR guage though and will be comparing it to what the LT8 is indicating.
Old 12-02-04, 01:33 PM
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hey trav , if u are free could i drop by your place so we could see how the tuning goes?

im in the middle of setting up everything too.. pls PM me if u want to thanks
Old 12-02-04, 06:53 PM
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I got my plxm500 simulated narrowband going into my microtech. the farther away from 14.7 it gets the further off it is.
Old 12-03-04, 12:40 PM
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Well, I'm quite a ways off from being ready to tune mine, but when that time comes, I'd be happy to have extra observers.

Depending on how bad Christmas spending goes, it might be spring before I even have something that I can start tho!
Old 01-30-05, 08:56 AM
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Originally Posted by Trav

I CAN tell you that I am myself going w/ the TE + LT8 setup w/ a Bosch 7057 sensor. Car is not assembled yet though, so I have no personal experiences to give you unfortunately.

I will be running with TE's AFR guage though and will be comparing it to what the LT8 is indicating.
What version of the Tech Edge do you have? I myself have the version 1.5, and plan to try to do closed-loop to my Haltech E6X in the next day or so.
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