Got my exhaust all done today, glad to have that over with. That's it for the difficult jobs I think, only thing left to get it daily driveable is figure out the electric fan control.
Made my own exhaust hangers out of some front upper shock bushings and a long stainless bolt. I wanted something more constrained than the factory two hole rubber hangers.
Used one of the bellhousing bolts to mount this one
Same method for the muffler. I'm going to redo this one when I tackle the rear of the Jeep, want to make it bolt to the link bracket rather than be welded on. Makes it difficult to get the muffler in or out with it welded. It's fine for now.
For the tailpipe, I just ran a straight tube right out the back from above the axle. Just wanted to keep it easy, it will probably need to change when the rear shock towers go in. It'll be a good test to see if this puts the pipe out of the way of rocks or if fumes get caught up in the wheel well or anything.
I ran the Jeep for a while in the garage to get everything warmed up. After about 15m of idling in my 98°F garage, with the cooling fan hotwired on low, I measured a maximum of 425°F at the cat, but a maximum of 225° on the heat shield. Idling isn't much load, but so far I like what I'm seeing. It really gets a lot of airflow at that location from the cooling fan. The engine never was able to get up to operating temp either, only got to the second notch at the gauge, temp gun said about 185 at the top of the radiator. I wonder if I have a stuck thermostat...
Made my own exhaust hangers out of some front upper shock bushings and a long stainless bolt. I wanted something more constrained than the factory two hole rubber hangers.
Used one of the bellhousing bolts to mount this one
Same method for the muffler. I'm going to redo this one when I tackle the rear of the Jeep, want to make it bolt to the link bracket rather than be welded on. Makes it difficult to get the muffler in or out with it welded. It's fine for now.
For the tailpipe, I just ran a straight tube right out the back from above the axle. Just wanted to keep it easy, it will probably need to change when the rear shock towers go in. It'll be a good test to see if this puts the pipe out of the way of rocks or if fumes get caught up in the wheel well or anything.
I ran the Jeep for a while in the garage to get everything warmed up. After about 15m of idling in my 98°F garage, with the cooling fan hotwired on low, I measured a maximum of 425°F at the cat, but a maximum of 225° on the heat shield. Idling isn't much load, but so far I like what I'm seeing. It really gets a lot of airflow at that location from the cooling fan. The engine never was able to get up to operating temp either, only got to the second notch at the gauge, temp gun said about 185 at the top of the radiator. I wonder if I have a stuck thermostat...