LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

should i get a wideband o2? who has one?

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Old Apr 1, 2006 | 05:20 PM
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should i get a wideband o2? who has one?

i need to get a full dyno tune when i get my motor back together, it's never had one, and i think she's not running right. i'm having no luck getting the computer to communicate with my auto ex-ray, but that will be addressed at another time. i was told by a few that in order to do the tuning the right way, i need to purchase a wideband o2 setup. a few questions.

why?

if i get one, which kind, and from where.

how much are they?

do they install in place of my stock o2's, or do i need to add them in after my stockers?

any info regarding these would really help me along. thanks!
Old Apr 1, 2006 | 07:13 PM
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Re: should i get a wideband o2? who has one?

AEM makes one.
Old Apr 1, 2006 | 07:35 PM
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Re: should i get a wideband o2? who has one?

I have a PLX.
Old Apr 1, 2006 | 07:53 PM
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Re: should i get a wideband o2? who has one?

I use the LM-1 from www.innovatemotorsports.com

I bought the additional venturi adapter so I can just "clamp on" the wideband O2 when I need it for testing. It doesn't protrude into the exhaust enough for "idle speed" AFRs but works fine 2K rpm+

It starts to get expensive if you want to have a "test" setup. I bought the AuxBox and RPM Inductor clamp so I can plot out AFR .vs RPM. The system works beautifully though. Takes 5 minutes to setup and is just as accurate as the dyno (I've got plenty of personal data to back that up).

Combine the above with a new G-Tech Pro, some good data logging software, LT1 Edit, consistent testing methods and you only have to visit the dyno for bragging rights.
Old Apr 1, 2006 | 08:06 PM
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Re: should i get a wideband o2? who has one?

The LM-1 is a good unit. But why do ya want one? The dyno people have one to tune ya up with.
Old Apr 1, 2006 | 08:50 PM
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Re: should i get a wideband o2? who has one?

still waiting on that feedback mr hondahunter.....
Old Apr 1, 2006 | 10:03 PM
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Re: should i get a wideband o2? who has one?

Oh my bad dude I love it. It has been very helpful along with the scanmaster at helping me know what's going on with the car. Somewhat simple instructions and good quality. My next step is to take it to the dyno and compare it with the a/f ratio I get there. I just have to wait on a tranny rebuild.
Old Apr 1, 2006 | 10:07 PM
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Re: should i get a wideband o2? who has one?

Originally Posted by 1racerdude
The LM-1 is a good unit. But why do ya want one? The dyno people have one to tune ya up with.
that's what i thought. don't they just stick a "sniffer" or something like that into your tailpipe similar to smog tests? i've never had my truck on a dyno before.

what's the price of LT1 edit and what type of platform do you need to run it?
how does it hook up to the car, right thru the obd1/2 port?
Old Apr 1, 2006 | 10:18 PM
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Re: should i get a wideband o2? who has one?

no they use a wideband o2 sensor not a sniffer. i have never dynoed a camaro but i have dyno tuned and street tuned my supra quite a few times. a wideband does not replace stock sensors it is its own independant set up(yes there are ways to adapt the wb to send signals to the pcm but i dont think it works real well from what ive heard) But if you dont know exactly what your doing you would be better letting someone else do for you. BTW i use an FJO in my supra, and it works great very accurate.
Old Apr 1, 2006 | 10:20 PM
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Re: should i get a wideband o2? who has one?

ok, so i looked at the LM-1's website and that looks like i could do all my own tuning with that software right?

for 400 something for that, and maybe 200 something for the dyno tune ( i dunno how much they are, 100.00 an hour if i remember correctly) that might be worth it.

one more question though guys, if i have true dual exhaust, will it work correctly with just one wideband in one side? how do you hook it up with true duals and no crossover pipe? my exhaust goes from the longtubes, back about 4 feet, hits 2 bullet mufflers, and dumps down right after them. it's not a long run at all.

do i need 2 sensors?
Old Apr 1, 2006 | 10:23 PM
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Re: should i get a wideband o2? who has one?

Originally Posted by 1997blackz28
no they use a wideband o2 sensor not a sniffer. i have never dynoed a camaro but i have dyno tuned and street tuned my supra quite a few times. a wideband does not replace stock sensors it is its own independant set up(yes there are ways to adapt the wb to send signals to the pcm but i dont think it works real well from what ive heard) But if you dont know exactly what your doing you would be better letting someone else do for you. BTW i use an FJO in my supra, and it works great very accurate.
Yes, the wideband can be used to send narrow band signals to your pcm. Can see why it would be a issue unless you have heated o2 sensors in which case you can use ressitors to trick the computer.
Old Apr 1, 2006 | 10:27 PM
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Re: should i get a wideband o2? who has one?

Originally Posted by Honda Hunter
Yes, the wideband can be used to send narrow band signals to your pcm. Can see why it would be a issue unless you have heated o2 sensors in which case you can use ressitors to trick the computer.
yea i have no experience with using the wb to send narrow band signals, I have always run both stock and wb sensors. I have just heard several people have trouble to get it to run well on their supras. thats all i dont know maybe camaros dont have this problem
Old Apr 1, 2006 | 11:27 PM
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Re: should i get a wideband o2? who has one?

any idea on if i have to run more than one sensor or not? i can't seem to find this info anywhere online
Old Apr 2, 2006 | 08:03 AM
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Re: should i get a wideband o2? who has one?

Originally Posted by djlunchbox
ok, so i looked at the LM-1's website and that looks like i could do all my own tuning with that software right?

for 400 something for that, and maybe 200 something for the dyno tune ( i dunno how much they are, 100.00 an hour if i remember correctly) that might be worth it.

one more question though guys, if i have true dual exhaust, will it work correctly with just one wideband in one side? how do you hook it up with true duals and no crossover pipe? my exhaust goes from the longtubes, back about 4 feet, hits 2 bullet mufflers, and dumps down right after them. it's not a long run at all.

do i need 2 sensors?

Yes, ya need two sensors. Weld bungs for them in the collectors and route the wires.
Ya don't need to run them all the time,just when ya dyno tune. Once it is tuned it has a fuel map to run on and the A/F ratio don't need dicking with all the time.It needs to be done by somebody who knows WTF they are doing or ya will have a bad running car and may cause serious damage to the engine.
Old Apr 2, 2006 | 11:15 AM
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Re: should i get a wideband o2? who has one?

Originally Posted by 1racerdude
Yes, ya need two sensors. Weld bungs for them in the collectors and route the wires.
Ya don't need to run them all the time,just when ya dyno tune. Once it is tuned it has a fuel map to run on and the A/F ratio don't need dicking with all the time.It needs to be done by somebody who knows WTF they are doing or ya will have a bad running car and may cause serious damage to the engine.

looking at getting a dynojet setup at this time. i don't see any provisions to run dual widebands though? is anyone else here running dual widebands AND dual factory o2's?



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