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Varg In Jeep's Clothing

Discussion in 'Builds and Fabricators Forum' started by ITLKSEZ, Aug 20, 2015.

  1. Oct 2, 2019
    ITLKSEZ

    ITLKSEZ Volvophilic

    Post Falls, ID
    Joined:
    Aug 13, 2015
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    Mounts are done. The exhaust gaskets should be here today. High-temp paint is drying.

    Here’s a shot of the underside with the tailpipe attached. Note the bung for an O2 sensor on the inlet. I used that section of pipe in case I ever swap in a newer engine that needs a post-cat sensor. Easier now than later. I hollowed out an old sensor and welded it shut to plug the hole.

    [​IMG]
     
    montanacj, Fly Navy, jeepstar and 3 others like this.
  2. Oct 2, 2019
    45es

    45es Member 2019 Sponsor

    Naches, WA
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    Mar 31, 2007
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    Since o2 sensors do not like water (condensation) I believe you should relocate the bung to a position somewhere above horizontal (o2 sensor mfg's state this repeatedly in their data). Also, you should consider replicating the location similar to the OEM position. That far down stream in the exhaust will probably require a heated sensor which isn't a problem in itself as there are numerous heated sensors available. The distance down stream can effect the operation of the computer though as believe it or not, the computer expects to receive the data in a timely manner. Again, not a major problem but could lead to the need of a minor tune adjustment of the computer tune.
     
  3. Oct 2, 2019
    ITLKSEZ

    ITLKSEZ Volvophilic

    Post Falls, ID
    Joined:
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    Thanks for the tips.

    This setup already has a pre-cat O2 sensor directly in the manifold that it uses. This is just for the (unlikely) event down the road where I’d install a newer engine that also needs a post-cat reading. If it becomes an issue when (if) that day comes, I’ll know where to go first! :)

    If it helps, I know the bung is on the bottom of the pipe, but it’s on the uphill end of the cat, under the crossmember.

    [​IMG]
     
  4. Oct 2, 2019
    45es

    45es Member 2019 Sponsor

    Naches, WA
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    Mar 31, 2007
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    Ryan, as far as the emission system is concerned, being on the uphill side of the cat has no bearing. It is on the downhill side of the muffler which will generate condensation and water will run into the sensor located like that.
     
  5. Oct 2, 2019
    ITLKSEZ

    ITLKSEZ Volvophilic

    Post Falls, ID
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    I totally get what you're saying. The bung itself protrudes into the pipe 3/8", and the pipe passes well into the muffler. It would take some serious flooding to get there.
    Again, just planning for something that will probably never happen, so I'll cross that bridge if it comes. 20 minutes with a hole saw and welder will make it right.
     
    45es likes this.
  6. Oct 2, 2019
    ITLKSEZ

    ITLKSEZ Volvophilic

    Post Falls, ID
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    Varg In Jeep's Clothing

    I was looking back through this thread for a pic, and saw this post from 5 months ago. Everything in this list is done. Getting closer!!
     
    Fly Navy, 73 cj5, 45es and 1 other person like this.
  7. Oct 3, 2019
    ITLKSEZ

    ITLKSEZ Volvophilic

    Post Falls, ID
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    Exhaust gaskets are in, and it sounds perfect. Quiet, but throaty, like a mini-Flowmaster or Borla. Probably doesn’t flow as well, but who cares.

    Here are the mounts. I placed one horizontally to keep side-to-side movement under control. I hate hearing a muffler thump against something, and there isn’t much clearance around this.

    [​IMG]

    I started on the wiring. I’m beginning at the passenger’s side front. The very first wire I chose to delete was one I needed. :steamed: I’m sure that won’t be the last time I do that.

    [​IMG]
     
    Fly Navy, Buildflycrash, 47v6 and 2 others like this.
  8. Oct 4, 2019
    baldjosh

    baldjosh Member 2020 Sponsor

    pacific north west
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    Holy spaghetti factory...have fun with that rats nest...
    you will get it(y)
     
    ITLKSEZ likes this.
  9. Oct 4, 2019
    ITLKSEZ

    ITLKSEZ Volvophilic

    Post Falls, ID
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    I really wish that wiring guru from Project Binky would show up and do this for me.
     
    Last edited: Oct 4, 2019
  10. Oct 4, 2019
    montanacj

    montanacj Member

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    That looks like you have your work cut out for you but we all know you are gonna pull it off. :bananatool:
     
  11. Oct 4, 2019
    Cap-n-Cray

    Cap-n-Cray I want to do this again.. Staff Member

    Bainbridge...
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    Do real Jeeps have Cats?...

    Can I borrow your EMC? I think the one in my Volvo has died again. Fuel pump relay...
     
  12. Oct 4, 2019
    ITLKSEZ

    ITLKSEZ Volvophilic

    Post Falls, ID
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    It’s time to just hand that off to a new owner. :sneak:
     
  13. Oct 4, 2019
    ITLKSEZ

    ITLKSEZ Volvophilic

    Post Falls, ID
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    5 hours of tracing one wire at a time...

    [​IMG]
     
  14. Oct 4, 2019
    Cap-n-Cray

    Cap-n-Cray I want to do this again.. Staff Member

    Bainbridge...
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    I wouldn't want you to start over with a five speed... :whistle:
     
  15. Oct 4, 2019
    ITLKSEZ

    ITLKSEZ Volvophilic

    Post Falls, ID
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    That’s ok, your little 240 distributor wouldn’t fit beside my fancy alternator mount.
     
  16. Oct 4, 2019
    Cap-n-Cray

    Cap-n-Cray I want to do this again.. Staff Member

    Bainbridge...
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    Not a problem since I found the problem with my Volvo. It wasn't the EMC it was the fuel pump 25 AMP fuse. The fuse holder which is in the engine compartment and faces up corroded in the rain forest...

    The car just won't die...
     
    ITLKSEZ likes this.
  17. Oct 5, 2019
    ITLKSEZ

    ITLKSEZ Volvophilic

    Post Falls, ID
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    It only takes three fuses and one relay for this engine to run.

    [​IMG]
     
    tomasinator, Fly Navy, 47v6 and 2 others like this.
  18. Oct 5, 2019
    Buildflycrash

    Buildflycrash Member 2020 Sponsor

    Gulf Breeze FL...
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    Awesome. Looks like you got rid of 80% of the wire.
     
  19. Oct 5, 2019
    Jw60

    Jw60 Recovering Jeepaholic

    Sedalia MO.
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    That video no worky for me, it looks pretty still. :whistle:
    Great job!
     
    ITLKSEZ likes this.
  20. Oct 5, 2019
    ITLKSEZ

    ITLKSEZ Volvophilic

    Post Falls, ID
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    It filled a 22 gallon tote!

    I planned on using the car’s harness for the lights, wipers, horn, etc,... but the way Volvo runs and interconnects their wiring was maddening. One fuse would control the LF turn signal, RR parking light and the engine compartment light. :confused: I tore it all out. I’ll re-wire the rest later.
     
    Buildflycrash likes this.

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