Author Topic: Exhaust header and downpipe  (Read 5128 times)

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Offline neale_rs

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Re: Exhaust header and downpipe
« Reply #15 on: August 12, 2013, 08:04:19 PM »
Would it work stuck to the floor, between exhaust pipe and floor?

From where did you buy it?

'95 YJ, 33 x 12.5 mud tires, RE 4.5 ED lift, Atlas 4 speed, rear D44, ARBs front and rear, 4.56 gears, 8000# winch

Offline sharpxmen

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Re: Exhaust header and downpipe
« Reply #16 on: August 12, 2013, 09:05:35 PM »
Would it work stuck to the floor, between exhaust pipe and floor?

From where did you buy it?



it works on the pipe just fine, on the cat is the problem, it still screens  but not as efficient as on the pipes where's there's a bit of space between the mylar fabric and the metal (they have some risers that keep it away from the pipe).
I bought them on Amazon, they are made by thermo-tec, 2 of the 3ft ones would cover the downpipe and the cat the way i have it, but i ended up with a 3ft, a 2ft and a 1 ft that i bought later from a local store (price was a little lower at the store so better if you can find them locally), i thought the 3+2 would be enought, wish i would have gotten a second 3ft rather than the 2+1, however it makes it easier for me to take the downpipe out by removing only one clamp (4ft + 2ft would be ideal but i don't think they make a 4 ft one)

here's the link for the 3ft one, it's a pretty good picture to understand how it works, idea is to keep it away from the pipe, screens the heat really well, the pipe is extremely hot even with the lava wrap but you can put your hand on the aluminized side of the screen and keep it there no problem
http://www.amazon.com/gp/product/B000GVQZ8Y/ref=oh_details_o03_s00_i00?ie=UTF8&psc=1
« Last Edit: August 12, 2013, 09:12:28 PM by sharpxmen »
'95 YJ, NSG370 6spd / Hurst shifter, Dana 300 + 4:1 Doubler / tri-stick, Custom skid, Super D35 / Auburn LSD / 4.88, 35x12.5x15 BFG KM2, 64mm t/b, 1.7 RollerRockers, MkVIII e-fan, Dual Diaph Booster
Latest: Corbeau BajaRS heated seats :dance: keeping warm the rear end

Offline dwtaylorpdx

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Re: Exhaust header and downpipe
« Reply #17 on: August 12, 2013, 09:41:51 PM »
Interesting, stuff, on my 94 YJ the stock pipe went straight back and crossed at the front of the skidplate...

Dave
94 YJ - 2.5 Hesco Cam B&B Ported - AX5 Trans w/Centerforce Dual Friction Clutch - 4" Rough Country Lift W/Skyjacker Shocks - D44 Rear/ARB - D30/ARB - ARB Compressor - Warn M8000 in Custom Bumper - Reunell Rear Bumper - Metalcloak 6" Body Armor Kit - Tuffy Console - 265x85-16 Tires - 2M Radio

Offline sharpxmen

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Re: Exhaust header and downpipe
« Reply #18 on: August 12, 2013, 10:32:16 PM »
Interesting, stuff, on my 94 YJ the stock pipe went straight back and crossed at the front of the skidplate...

Dave

i know, mine was between the oil pan and the trans inspection cover - both are as bad, mine it heats up the motor oil and you can't have a decent oil change since the drain is right in front of the downpipe (mind you some '95s have the drain on the side like the TJs), in your case it cooks the transmission and hangs too low (seems to get beat up the most on trails).
there's tons of space where i put it, i guess they got smarter with the TJ as i think it's routed that way, but from what i recall it goes right under the starter which is also silly. In all honesty in all cases it should have had a heat shield from factory
'95 YJ, NSG370 6spd / Hurst shifter, Dana 300 + 4:1 Doubler / tri-stick, Custom skid, Super D35 / Auburn LSD / 4.88, 35x12.5x15 BFG KM2, 64mm t/b, 1.7 RollerRockers, MkVIII e-fan, Dual Diaph Booster
Latest: Corbeau BajaRS heated seats :dance: keeping warm the rear end

Offline dwtaylorpdx

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Re: Exhaust header and downpipe
« Reply #19 on: August 12, 2013, 11:53:36 PM »
The true solution would have been a cross flow head... So the exhaust would have dropped on the right... LOL
THe extra HP would not suck either..

Dave
94 YJ - 2.5 Hesco Cam B&B Ported - AX5 Trans w/Centerforce Dual Friction Clutch - 4" Rough Country Lift W/Skyjacker Shocks - D44 Rear/ARB - D30/ARB - ARB Compressor - Warn M8000 in Custom Bumper - Reunell Rear Bumper - Metalcloak 6" Body Armor Kit - Tuffy Console - 265x85-16 Tires - 2M Radio

Offline neale_rs

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Re: Exhaust header and downpipe
« Reply #20 on: August 13, 2013, 08:00:15 AM »
it works on the pipe just fine, on the cat is the problem, it still screens  but not as efficient as on the pipes where's there's a bit of space between the mylar fabric and the metal (they have some risers that keep it away from the pipe).
I bought them on Amazon, they are made by thermo-tec, 2 of the 3ft ones would cover the downpipe and the cat the way i have it, but i ended up with a 3ft, a 2ft and a 1 ft that i bought later from a local store (price was a little lower at the store so better if you can find them locally), i thought the 3+2 would be enought, wish i would have gotten a second 3ft rather than the 2+1, however it makes it easier for me to take the downpipe out by removing only one clamp (4ft + 2ft would be ideal but i don't think they make a 4 ft one)

here's the link for the 3ft one, it's a pretty good picture to understand how it works, idea is to keep it away from the pipe, screens the heat really well, the pipe is extremely hot even with the lava wrap but you can put your hand on the aluminized side of the screen and keep it there no problem
http://www.amazon.com/gp/product/B000GVQZ8Y/ref=oh_details_o03_s00_i00?ie=UTF8&psc=1


Thanks
'95 YJ, 33 x 12.5 mud tires, RE 4.5 ED lift, Atlas 4 speed, rear D44, ARBs front and rear, 4.56 gears, 8000# winch