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hi,
i have an inovate wideband kit with xd16 and i am wondering where to mount the lc1 unit and sensor.
how far from the turbo the sensor must be? the innovate manoual sayes that max temps for sensor is 900f. how far from the turbo the heat is under the 900f?
option 1) i am thinking to mount the sensor about 60" from the turbo .it is underneath the gear stick.i can route the cables at a position near the handbrake at the main console and have the lc1 unit inside the center console. with that way i will have the unit in a protective and secure place with no heat at all.
the only concern is the distance. is it too much???
option 2) mount the lc1 on the engine bay ( where???) and route the cables inside the cocpit from the pasengers side ( from where? drill a hole to firewall? )
with that way the sensor is mounted at about 30" from turbo and the lc1 is exposed to heat. is the distance enouth ??
i would prefer the option 1 methode but i am not familiar with wideband tecnologie .can anyone please help?
please consider that the sensor will be mounted permanately on the car.
besides the min distanse and max temps is there a " max " distanse for sensor readings?
where do you guys mounted yours ?
please help
achilles
Mine is right where the downpipe levels off by the tranny. Kinda like your 1st option. Remember, 02 content wont change the further back you put it, just the exhaust temps. Ideally you want it as far away from the turbo as possible but before the cat, or where the cat was.
is there any lag in readings if the distanse is 48" ? or it does n t matter?
i have an EGT installed on the manifold before the turbo at the engines outlet and i see 850-900f minimum temps. if i rev the engine the temps may hit 1600f-1650. that is before the turbo. i do not know how much temps will fall after the turbo at about 12" .
12" after the turbo is also a convinient place but the wideband manual says do not expoce to temps over 900F . is the temps 12" from turbo at that range?
please note that the 1600f is with stock ecu. i am installing a pfc now.i do not know if the temps will change.is these temps normal?( max boost is settet to 10psi and with an autometer A/F narow band meter i did not noticed any leans . the meter was all the time in rich area if i hit the gas)
I have mine installed as per your option #1. The WB02 sensor is in the mid pipe right after the down pipe. The 02 sensor fits quite well at almost 12:00 position. Wiring went up through the shifter boot. CrispyRX7 installed his in that location also and I mimicked his install.
Whenever I have gotten tuned, the 02 sensor was in the tail pipe fwiw
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IRP powered - Carlisi Memorial Motor - 99 Twins - custom V-mount by Speed of light
Potentially, the tail pipe is not as accurate. Is it inaccurate enough to matter? Probably not.
Have you ever been to a Steve Kan tuning event? Or any other tuning event? He and most dyno shops place the 02 sensor in the tail pipe unless the bung is readily accessible.
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IRP powered - Carlisi Memorial Motor - 99 Twins - custom V-mount by Speed of light
Mine is right where the downpipe levels off by the tranny. Kinda like your 1st option. Remember, 02 content wont change the further back you put it, just the exhaust temps. Ideally you want it as far away from the turbo as possible but before the cat, or where the cat was.
Got mine there too. There's a fair bit of space there.
That left enough to mount the LC1 on the firewall behind the ABS.
The cables were then run behind the fender and into the cabin next to the ECU.
Potentially, the tail pipe is not as accurate. Is it inaccurate enough to matter? Probably not.
Have you ever been to a Steve Kan tuning event? Or any other tuning event? He and most dyno shops place the 02 sensor in the tail pipe unless the bung is readily accessible.
Yes it can matter and yes I've been there to tune many cars, including events. If I was doing a tuning event I wouldnt to get under every car to screw in my o2 either.
Potentially, the tail pipe is not as accurate. Is it inaccurate enough to matter? Probably not.
Have you ever been to a Steve Kan tuning event? Or any other tuning event? He and most dyno shops place the 02 sensor in the tail pipe unless the bung is readily accessible.
Yes it can matter and yes I've been there to get many cars tuned, including events. If I was doing a tuning event I wouldnt to get under every car to screw in my o2 either.
The 900 degree temp limitation is more for the part of the sensor outside the bung. If you read the directions it shows how to fabricate a copper heat shield. I know many people who place the wideband in the DP about 12 inches from the turbo (not just on rotary engines). If you can protect the sensor and wires ( ceramic coating, thermal wrap, heat sync, etc.) then it should be ok.
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Chris
1993 FD3S R1
1975 Suzuki RE5
That's the money you could be saving if you didn't own a RX-7.
hi,
thanks for the help. i thought that the copper sheet was for heat difusing and not for shielding.if it if for sheilding i am ok. the only problem is how to route the wires inside and where to mount the LC1.
i see that it is a very tight place to use a drill and make a hole to the fire wall. is there any other way? someone mension behind the fender but i do not see how to do it.
thanks again..
Yes, the copper will do both. The sensitive electronics are above the bung. I mounted my LC1 at the ABS unit and ran it through the firewall with my engine harness. I had the harness out for other mods so this may not be an option for you.
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Chris
1993 FD3S R1
1975 Suzuki RE5
That's the money you could be saving if you didn't own a RX-7.
i have my harness out too. i am trying rewrap it and removed all the unused wires.did you wrap the two hernesses together ?did you run the two harnesse through the ruber ring together?
i do not want to wrap the harnesses together in case i might need to remove one of them.
thanks.
Yes it can matter and yes I've been there to get many cars tuned, including events. If I was doing a tuning event I wouldnt to get under every car to screw in my o2 either.
I'm probably a few inches further back then where you put yours. I don't think that will make any difference whatsoever. It also made wiring a lot easier since I was able to run the LC1 up through the shifter tunnel.
I don't think so either. Did you put the lc1 itself in the shifter tunnel or did you leave the brain in the car?
The brain is in the car. I only needed about 12-18" of wire length to read the 02 sensor. It made wiring the unit a lot easier in this location and I didn't have to worry about heat shielding.
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IRP powered - Carlisi Memorial Motor - 99 Twins - custom V-mount by Speed of light
I have an LC-1; I put mine in the "stock" downpipe O2 sensor location, that's about 14" from the turbo on my pipe. I have another bung on the pipe lower down, around where the pipe goes horizontal for dyno O2 sensor use, but it points downwards, so I didn't want to put the sensor there.
I ran the cabling through the EM harness grommet. So I could remove the sensor, I cut the sensor harness & installed a weatherpack connector. The business end is in the passenger footwell, because of the new connector in the engine bay I don't have to mess with the install if I have to remove the DP, or leave the sensor dangling.
So far it seems to work OK for me
I also reckon that if I have to replace the sensor I can get at it & the cabling easily!
I put mine through the harness boot but I didn't wrap it with the harness. I but some DEI tape on both sides of the boot to seal it. It should be fairly easy to remove it this way.
__________________
Chris
1993 FD3S R1
1975 Suzuki RE5
That's the money you could be saving if you didn't own a RX-7.
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