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Old 11-13-2013, 01:40 PM   #81
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I got an LC-2 as well, wires in and works pretty much the same as the LC-1. It comes with an extension now so you can put the controller inside the cabin and not have to worry about shielding it from engine heat. I wish I knew about no free air calibration, that sounds way better, but alas I read the instructions and did the free air cal. Warm up seems about the same.

One question, my wideband and the dyno have never agreed in the past. Should I trust my new LC-2 with a fresh sensor or should I trust the dyno? The dyno reads about .2 to .4 leaner than my LC-1 did. The dyno operator wasn't very confident in the precision of their sensor either, plus it goes in the tailpipe, which is post-cat and who knows how many exhaust leaks further than my wideband.
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Old 11-13-2013, 01:44 PM   #82
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its pretty obvious which one you should trust more
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Old 11-18-2013, 10:36 AM   #83
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Quote:
Originally Posted by vitamin j View Post
I got an LC-2 as well, wires in and works pretty much the same as the LC-1. It comes with an extension now so you can put the controller inside the cabin and not have to worry about shielding it from engine heat. I wish I knew about no free air calibration, that sounds way better, but alas I read the instructions and did the free air cal. Warm up seems about the same.

One question, my wideband and the dyno have never agreed in the past. Should I trust my new LC-2 with a fresh sensor or should I trust the dyno? The dyno reads about .2 to .4 leaner than my LC-1 did. The dyno operator wasn't very confident in the precision of their sensor either, plus it goes in the tailpipe, which is post-cat and who knows how many exhaust leaks further than my wideband.
I would not be surprised if a wideband that reads from a tailpipe probe shows a little bit leaner than one properly installed in the exhaust, especially if the differences are greater at lower load.

Either way, an error of .2:1 AFR is pretty negligible in the real world, for this type of application.
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Old 11-18-2013, 11:07 AM   #84
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A tailpipe wideband read is so fundamentally flawed that words can't express how much it angers me when "reputable" shops tune like that.
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