I'm looking for a place to mount the brain of my LC-1 WBO2. Since the cable is only about 2.5 feet long I'm forced to put the unit under the tin. I'm sure its built for underhood temperatures since that the only place it can go.
Where did you guys mount yours?
Thanks
BTW - my megasquirt build is coming along nicely. I'm running wires, almost finished with the fuel side of things. So far so good. i'll post pics over the weekend.
bump...
(cause I need to figure out where to put my LC-1 also)
brant
bump.. and a bunch of questions.
1) where did you end up installing the actual O2 sensor?
(in the collector after the 4 became 2 or just into 1 bank?
2) when you say under the tin, do you mean the motor tin?
3) do you think the entire unit will be long enough to reach the dash? I measured 12 foot, but thought I would buy a longer MTS cable if I had too.
4) my bung is pretty much after the header (very far back) so I was thinking about mounting the cable to the bottom of the rear trunk.. and then routing forward.. describe what you intend to do?
TIA
brant
thought of another question...
are you running your cable straight into MS, or an XD guage, or a Meter? and where are you mounting what ever it is that you run the cable into?
brant
Fiid ran his into the rear trunk. There's a photo of it somewhere on here...
QUOTE (lapuwali @ Mar 17 2006, 09:52 AM) |
Fiid ran his into the rear trunk. There's a photo of it somewhere on here... |
His MS is mounted in the engine bay right now, not the rear trunk. The LC-1 controller is all the way back by the taillights.
no pics right now....mine is located in the rear trunk.....the hole for the O2 sensor cable is approx. 5" forward of the pass. side transmission mount ...my ECU is in the passanger compartment
Mike,
this is encouraging.
so you had enough length to get to the passenger compartment!
you must have added wire length for that accomplishment or did the LC cable end make it that far forward?
brant
QUOTE (brant @ Mar 17 2006, 10:38 AM) |
Mike, this is encouraging. so you had enough length to get to the passenger compartment! you must have added wire length for that accomplishment or did the LC cable end make it that far forward? brant |
QUOTE (brant @ Mar 16 2006, 09:26 PM) |
bump.. and a bunch of questions. 1) where did you end up installing the actual O2 sensor? (in the collector after the 4 became 2 or just into 1 bank? 2) when you say under the tin, do you mean the motor tin? 3) do you think the entire unit will be long enough to reach the dash? I measured 12 foot, but thought I would buy a longer MTS cable if I had too. 4) my bung is pretty much after the header (very far back) so I was thinking about mounting the cable to the bottom of the rear trunk.. and then routing forward.. describe what you intend to do? TIA brant |
I was browsing around the Innovative site and came across this:
Megasquirt Integration Note
High-impedance inputs, like those found in the current version Megasquirt fuel computer, can create problems with the LC-1 because the input caps act as dynamic shorts. The easiest fix is to add a 470 Ohm resistor in series with the analog output of the LC-1.
http://www.innovatemotorsports.com/resources/news11.php
Also check this out, posted on msefi.com
http://www.msefi.com/viewtopic.php?p=107813&highlight=lc1#107813
"On a V3 main board, the resistors R10, R11, and C10 capacitor form the EGO input circuit (R1, R29, and C2 on a V2.2 main board). C10 is on the processor side of the circuit, and is fine. However, some people are apparently adding capacitors to the sensor side of R10/R11. This causes problems with some wide-band controller boards, including the Innovate LC-1. So don't do it. "
Here is an entire thread on adding a resistor inline with the analog output:
http://www.msefi.com/viewtopic.php?p=106403&highlight=lc1#106403
and another.. http://www.msefi.com/viewtopic.php?p=106165&highlight=lc1#106165
I just emailed Innovative and asked them what the max operating temp of the LC-1 brain should be limited to.
I submitted my operating temp question to Innovative and received this response:
"We tested the LC-1 to up to 180 degF environmental temp"
not really what i was looking for. you would think they would publish operating environment specifications. this answers is pretty worthless to me.
dang...
sorry...
that doesn't seem like all that of an extreme test does it.
brant
Ok, i bolted my muffler back on and screwed in the WBO2 sensor. the cable reaches into the engine compartment on the drivers side by about an inch. I'm going to ziptie the LC-1 to the tin with some rubber insulation in between. i'll take pic tomorrow. i hope the temp is ok there. i'll stick a temp probe in it once the car is running.... gimme afew days.
I've been running my relay box and Techedge WBO2 unit on the firewall right behind my seat for long time. No problems. Of course the air from the rain tray dumps in right there.
Dave
I posted this on the innovative forums:
"Ok so what are the operating specs for this unit? If that data isn't available then what are the components rated to?"
Got this response:
"-25C to +90C"
so -13F to 194F.
That's reasonable. I ended up mounting my LC-1 on the top side of the engine tin near the fuel pressure regulator.
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