fenderwell or in frame headers
- Thread starter bryanjeep
- Start date
joejeepny
New member
duals inside the frame out to supertrapps in the rear. Small catalytics in the lines work great with the supertrapps behind. Consider a crossover. Supertrapps are tunable for back pressure.
http://www.supertrappind.com/Automotive/automotive_page.htm
http://www.supertrappind.com/Automotive/automotive_page.htm
Tug-n-pull
New member
Function Function and Function is the key. Like Snitty said keep the heat out close to the edge and up out of the mud. Tug
Inspector-Gadget
New member
Items to be aware of with in-frame headers derived from my previous Jeep with a 350 SBC.
Passenger side header: On a hot day, the starter would get so hot from the proximity of the header-exhaust pipe that it would jam. This was a problem only in stop and go traffic. If I stopped somewhere and turned off the engine, the starter would need cool-down time before it would free up to start the engine. This problem never appeared after driving at highway speeds.
Driver's side header: The clutch slave hydraulic cylinder would overheat because of the proximity the the header-exhaust pipe. One could actually see the brake fluid bubbling in the clutch master cylinder on removal of the filler cap. Again, the soft-clutch problem cured itself on cool down.
Both problems were cured with header tape and the fabrication of sheet metal shields.
Curable problems, mentioned only as factors to stir into the mix for making your decision.
Regards,
Gadget
Passenger side header: On a hot day, the starter would get so hot from the proximity of the header-exhaust pipe that it would jam. This was a problem only in stop and go traffic. If I stopped somewhere and turned off the engine, the starter would need cool-down time before it would free up to start the engine. This problem never appeared after driving at highway speeds.
Driver's side header: The clutch slave hydraulic cylinder would overheat because of the proximity the the header-exhaust pipe. One could actually see the brake fluid bubbling in the clutch master cylinder on removal of the filler cap. Again, the soft-clutch problem cured itself on cool down.
Both problems were cured with header tape and the fabrication of sheet metal shields.
Curable problems, mentioned only as factors to stir into the mix for making your decision.
Regards,
Gadget
jeepinstien
New member
Use stock manifolds and have them jet hot coated. Throw on a Hi performance converter and a flowmaster with dual outlets.
Inspector-Gadget
New member
New Carb Shopping
Another consideration I just remembered...well, sort of remembered.
As I recall -- and I could be wrong -- but I believe that if one has an auto-transmission behind the 350, there is no choice of inside or outside the frame. The only option is an outside the frame exhaust system.
Can anyone confirm or deny?????
Gadget
Another consideration I just remembered...well, sort of remembered.
As I recall -- and I could be wrong -- but I believe that if one has an auto-transmission behind the 350, there is no choice of inside or outside the frame. The only option is an outside the frame exhaust system.
Can anyone confirm or deny?????
Gadget
4.2 Manifold Vacum
I've seen a guy at the off road shop I deal with that wanted dual exhaust out either side of the rear of the jeep. The only way he could make this possible was to either find a smaller fuel tank, convert his suspension to coil springs or have the exhaust exit out the sides before your rear tires. You can't get an exhaust pipe out the drivers side rear of the jeep because there is no room between the fuel tank and shackle/leaf spring. By doing the coil conversion, he was able to get an exhaust pipe out the rear on the drivers side. Sounds pretty expensive to me for dual exhaust but I guess if you have the money, why not.
I've seen a guy at the off road shop I deal with that wanted dual exhaust out either side of the rear of the jeep. The only way he could make this possible was to either find a smaller fuel tank, convert his suspension to coil springs or have the exhaust exit out the sides before your rear tires. You can't get an exhaust pipe out the drivers side rear of the jeep because there is no room between the fuel tank and shackle/leaf spring. By doing the coil conversion, he was able to get an exhaust pipe out the rear on the drivers side. Sounds pretty expensive to me for dual exhaust but I guess if you have the money, why not.
redrooster
New member
I have Summit fenderwell headers on my 360. I hate them. They turn out or down right in front of the tire. They are loud, blow dust, and are hot.
I would suggest getting coated block hugger headers for the 350. If you want duals then you will have to get crafty to sneak the muffler past either side of the fuel tank. Flowmaster has a tiny littl sawd off version of the dual chamber that I saw a guy running. It was only about 8" long. I don't know what it sounds like. It was on the rack when I saw it.
I would suggest getting coated block hugger headers for the 350. If you want duals then you will have to get crafty to sneak the muffler past either side of the fuel tank. Flowmaster has a tiny littl sawd off version of the dual chamber that I saw a guy running. It was only about 8" long. I don't know what it sounds like. It was on the rack when I saw it.
Similar threads
