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Snow Trooper
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« Reply #15 on: June 29, 2012, 06:34:35 PM »
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This may not be the best place to ask, but has anyone used the LC-1's "simulated narrowband" output (Analog 1 I think) to feed the ECU? I have one of these sitting on a shelf on my garage and I would like to install it, but do not want to pull a downpipe to have an additional bung added. Thanks!
Yes, I simulate both primary o2 inputs from both analog outs on my 2.7 Works very well. |
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cartoons?
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zadeluca
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« Reply #16 on: June 29, 2012, 08:55:02 PM »
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oh cool. you do it for both? do you have 2 lc-1's?
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Snow Trooper
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« Reply #17 on: June 30, 2012, 11:40:47 AM »
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Each lc1 has two analog outs, I have a single turbo with one downpipe so I just offset them by .001 volts, feed to both factory inputs and then it allows me to still have fuel trims.
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cartoons?
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s5fourdoor
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« Reply #18 on: June 30, 2012, 01:33:40 PM »
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I've been waiting for a bit to chime in here in regards to your setup - Snowtrooper. Let me ask you this, and it's a bit of a postulate, so I honestly just want your feedback on it.
Do you think that using the factory ecu on a simulated output from the LC-1 derives greater precision of measurement? This effect would be due to the potential increase in Signal-to-Noise ratio of the digital signal. Is there a way to quantify the question I'm asking? There might also be algorithms which using spectral filtering or something on the signal. [?]
I have a LC-1 and currently don't use this feature. I may do this if we agree there should be more precision with simulated versus actual.
Any thoughts are appreciated since I know the diversity of your experience.
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Snow Trooper
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« Reply #19 on: June 30, 2012, 06:28:34 PM »
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I do believe there is a greater level of precision than the stock narrowbands. Yet we must all assume the a properly functioning narrowband is really really good at finding stoich. Then again we are told by the sensor manufacture (bosch) that the more modern 5 wire wideband sensors are more accurate amd offer better readings over a wider operating range.
In the end I trust the info from these sensors 100 times more than the narrows, its expensive but if you ran two lc1s in a true dual bank fashion each emulating to the ecu I thing the car will be tuned that much tighter. I also really like logging my car and having the primary o2 data be legit.
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Snow Trooper
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« Reply #20 on: June 30, 2012, 06:35:20 PM »
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Also I cannot stress enough how much the signal needs to be shielded. I like to use rca a/v style cables for each feed. Cut off and stripped back they have the other wire like a coax cable and if you ground the outer it works great to keep interference out.
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jibberjive
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« Reply #21 on: July 11, 2012, 06:24:26 PM »
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Interesting. So in the case of a single turbo, a single LC-1 input can have 2 separate outputs, and you can offset each output individually?
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Milka
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« Reply #22 on: October 29, 2012, 05:54:02 PM »
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Great tool, love it worked first time.
Is there a way to log 2 LC-1s, I'm running one in each bank and would really like both in the combined log.
Thanks
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Jason
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« Reply #23 on: October 29, 2012, 05:58:07 PM »
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Technically it should only require a minor revision. I'll take a look at it tonight...
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Jason
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« Reply #24 on: October 29, 2012, 06:02:27 PM »
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Are you using the LC-1's on separate serial ports or do you have the units daisy chained?
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Milka
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« Reply #25 on: October 29, 2012, 06:06:15 PM »
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Hey mate,
I have them Daisy chained at the moment, but which ever is easier
Thanks
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Jason
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« Reply #26 on: October 29, 2012, 06:30:56 PM »
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Let me see if I can find my stupid 2.5mm to 2.5mm cable to daisy chain mine. Do both sensors enumerate in the dropdown list?
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Milka
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« Reply #27 on: October 30, 2012, 02:40:23 AM »
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Yep both are in the list, interestingly I actually have 4 devices (i.e. 2 duplicates?) but it works without a problem
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Milka
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« Reply #28 on: November 12, 2012, 09:55:07 PM »
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Hey mate,
Did you get a chance to see how hard it was to add the second LC-1?
Thanks
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Jason
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« Reply #29 on: November 13, 2012, 07:20:50 AM »
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Actually, that reminds me, I ordered another cable but it hasn't shown up yet. I've got some vacation coming up so I'll definitely get it working soon.
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