LS swap into a 97 TJ

[WJCO]

It looks like Oregon is only an obd test state. So no visual and no sniffer test. Theoretically I could run a straight pipe to a muffler and then a tail pipe so I'm legal for sound... I could put a shelled cat on there if I get pulled over. And I can reprogram. The ECU to ignore the O2 sensors. Anyone have any input? Just worried about wiring for the sensors.

Sent from my Life One X2 using WAYALIFE mobile app

If you can legally get by without a cat, then yes, I would say reprogram to ignore the o2. Your upstream sensor will serve as the PCM input to the air/fuel ratio based on your combustion byproduct and the downstream sensor will serve only to tell the pcm that the cat is working or not. If you leave both there with no cat, it will trip the engine light. I helped a friend build an offroad vehicle out of a pickup that he didn't drive on the road anymore, and we had to removed cat (again, this was legal and for offroad use and no longer used on the street), and we actually left the upstream cat plugged in like normal, but we tied the downstream one off to the side where it was exposed to normal fresh air. It actually worked, he never had an engine light come on and it ran fine.

 

[Strodinator]

Thanks WJCO, small delay here, Novak just informed me that the adapter plate is back ordered. They are going to get back to me when the parts guy is out of a meeting but this could really screw everything up. I was hoping to be done in three weeks and now it looks like I'll be riding my motorcycle into snow season.

Sent from my Life One X2 using WAYALIFE mobile app

 

[Brute]

If you can legally get by without a cat, then yes, I would say reprogram to ignore the o2. Your upstream sensor will serve as the PCM input to the air/fuel ratio based on your combustion byproduct and the downstream sensor will serve only to tell the pcm that the cat is working or not. If you leave both there with no cat, it will trip the engine light. I helped a friend build an offroad vehicle out of a pickup that he didn't drive on the road anymore, and we had to removed cat (again, this was legal and for offroad use and no longer used on the street), and we actually left the upstream cat plugged in like normal, but we tied the downstream one off to the side where it was exposed to normal fresh air. It actually worked, he never had an engine light come on and it ran fine.

That's pretty sneaky...I like it. I was having some downstream O2 sensor issues that were throwing engine codes awhile back...but the good news was that it led to a retune of my engine as it was running too rich and now it never ran better and increased mpg as well...

 

[Strodinator]

Radiator came in. I love that these are all handmade and have the welds to show it. Not bad work at all and shouldn't leak.

Sent from my Life One X2 using WAYALIFE mobile app

 

[Strodinator]

Haha! No Deq for this guy. Registering under a buddy's address who is outside testing limits.

Sent from my Life One X2 using WAYALIFE mobile app

 

[Strodinator]

Pretty busy day, got the entire drive train pulled! Perfect timing because I have guys coming tomorrow to look at the engine and transmission.

Sent from my Life One X2 using WAYALIFE mobile app

 

[Strodinator]

It's been a while. Lost motivation for a while and just let it sit. Now that it's getting icy I really need to get going on it again so today I cut off the passenger motor Mount and ground it smooth. I also finally removed the driver side fender. more work later tonight but first I get to go to a winter Hawks game.

Sent from my PH-1 using WAYALIFE mobile app

 

[WJCO]

Nice update. This thing will be awesome when it's done.

 

[2011jk]

Radiator came in. I love that these are all handmade and have the welds to show it. Not bad work at all and shouldn't leak. View attachment 282412 View attachment 282413 View attachment 282414 View attachment 282415

Sent from my Life One X2 using WAYALIFE mobile app

Those are some of the worst "professional' welds I have seen...

 

[Strodinator]

Those are some of the worst "professional' welds I have seen...

If it leaks I'll send it back. All I really cared about was the affordibility and the fact that the materials used we're decent quality.

Sent from my PH-1 using WAYALIFE mobile app

 

[Five-N9ne]

This'll be interesting.

 

[PT1400]

Really coming along! Next time I'm up your way I'm gonna have to get a hold of you and come check it out!

 

[Strodinator]

Really coming along! Next time I'm up your way I'm gonna have to get a hold of you and come check it out!

Go for it! I finally have my motivation back so it should be smooth for now

Sent from my PH-1 using WAYALIFE mobile app

 

[Strodinator]

Pictures were too big so I have to go through Tapatalk which I hate doing. I got the other motor mount off. Then just for you guys I hoisted the motor up and test fit it without mounts yet. I have to say I got pretty excited when it was in place. Some finishing for for today until I get back later, I got the Novak adapter plate on which took close to an hour because the alignment pins weren't working right. Nothing a BFH wouldn't fix. Also got their custom flywheel on and it looks great.

Sent from my PH-1 using Tapatalk

 

[WJCO]

That's awesome. Congrats on making it this far. Anxious to see it running.

 

[boardsurfer]

Awesome thread!

If you can legally get by without a cat, then yes, I would say reprogram to ignore the o2. Your upstream sensor will serve as the PCM input to the air/fuel ratio based on your combustion byproduct and the downstream sensor will serve only to tell the pcm that the cat is working or not. If you leave both there with no cat, it will trip the engine light. I helped a friend build an offroad vehicle out of a pickup that he didn't drive on the road anymore, and we had to removed cat (again, this was legal and for offroad use and no longer used on the street), and we actually left the upstream cat plugged in like normal, but we tied the downstream one off to the side where it was exposed to normal fresh air. It actually worked, he never had an engine light come on and it ran fine.

MmHmm, I understood some of those words.

 

[Strodinator]

Well small delay. After counting the flywheel I noticed what appeared to be a defect in the build. The actual plate had some separation from the backer plate with the ring gear. Sent some photos to Jeff at Novak and he agreed with me and sent a fresh one out.

Sent from my PH-1 using WAYALIFE mobile app

 

[WJCO]

Well small delay. After counting the flywheel I noticed what appeared to be a defect in the build. The actual plate had some separation from the backer plate with the ring gear. Sent some photos to Jeff at Novak and he agreed with me and sent a fresh one out.

Sent from my PH-1 using WAYALIFE mobile app

Good thing you caught it now.

 

[Strodinator]

Good thing you caught it now.

I was taking a look and thought "huh I don't think that's supposed to be separated". A little bummed because most if the physical work is assembling the drivetrain now and this is going to keep me waiting.

Sent from my PH-1 using Tapatalk

 

[Strodinator]

I got the new flywheel in yesterday. The guys at Novak were great at getting this shipped out and making my wait time less. Got it mounted and the clutch system installed. Then I got the studs set for the bell housing and made sure they were all straight. I ended the night with a fun mod. Because who doesn't need a bottle opener on their Jeep?

Sent from my PH-1 using Tapatalk