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post #1 of (permalink) Old 02-28-2002, 01:00 AM Thread Starter
 
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CJ Dual Exhuast with manifolds, post pics please!

I am sticking the 360 in the CJ 5 soon, and have heard all the warnings about headers and dont want side exit exhaust, so I would like to run manifolds with dual exhaust exiting in the rear. I was looking under the jeep today trying to see how I would have the passenger side routed back. It seems like it will be a tight fit.

Can anyone how runs this setup on a jeep please post pictures of their setups.

thanks very much
tony

79 CJ 5, 258, dana 30, model 20, T18, dana 20, 2.5" rancho lift, 1" shackles
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post #2 of (permalink) Old 02-28-2002, 07:10 AM
 
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Re: CJ Dual Exhuast with manifolds, post pics please!

i'd like to see some too!

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post #3 of (permalink) Old 02-28-2002, 08:40 AM
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Re: CJ Dual Exhuast with manifolds, post pics please!

I had duals on the CJ5 with manifolds on the 304. I was running Flowmasters on it, and it was very tight on both sides. I had them dumped out in front of the axle with turndowns though. Depending on the muffler size, it may be more or less tight. The Flowmasters I had were angled a bit to improve clearance, but were close to the t-case end u-joint, and rubbed on the leaf spring hangers. I will see if I have any pics to put up.

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post #4 of (permalink) Old 02-28-2002, 09:59 AM
 
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Re: CJ Dual Exhuast with manifolds, post pics please!

i'll be doing this on my Scrambler, so i'll have a little more length to work in. anyone else? matt

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post #5 of (permalink) Old 02-28-2002, 12:07 PM Thread Starter
 
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Re: CJ Dual Exhuast with manifolds, post pics please!

pbmcauliffe
you had them dump on front of the axle? Out the sides? Where they in the wheel well or under the rocker panel? I dont think I want them out the side, but would like to see a picture?

any one else?

thanks
tony

79 CJ 5, 258, dana 30, model 20, T18, dana 20, 2.5" rancho lift, 1" shackles
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post #6 of (permalink) Old 02-28-2002, 12:19 PM
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Re: CJ Dual Exhuast with manifolds, post pics please!

Tony- Still looking for a pic, but they were turned down at the output of the muffler. So the pipes came back from the manifold to the muffler, then turn downs (pointed at the ground). The front edge of the muffler was about 2" towards the front of the rear spring hanger. It wasn't bad for fumes or anything, the only real down side was it turned up some good dust clouds with the exhaust exiting straight towards the ground.

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post #7 of (permalink) Old 02-28-2002, 12:32 PM
 
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Re: CJ Dual Exhuast with manifolds, post pics plea

This is only a suggestion, If your looking for higher rpm HP(mud and sand) then duals with a crossover are a better choose, But if you looking for low rpm torque, use a 2 into 1 pipe with 2 1/2" tube. It also makes it much easier to route the pipes using one muffler.
This is what I use on my 421chevy and it works great.


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post #8 of (permalink) Old 02-28-2002, 12:52 PM
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Re: CJ Dual Exhuast with manifolds, post pics plea

Wayne,

Is that a prefabbed kit? I'm looking for a kit like that for my SB 350 in my CJ7.

Mark F

1986 CJ7, Chevy 350, 700r4, D44/D30, more to come shortly
post #9 of (permalink) Old 02-28-2002, 03:12 PM
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Re: CJ Dual Exhuast with manifolds, post pics please!

Here's a shot of my exhaust running past the transfer case. I used mufflers that are NOT straight through but have two pipes inside the large round housing.



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post #10 of (permalink) Old 02-28-2002, 03:43 PM
 
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Re: CJ Dual Exhuast with manifolds, post pics plea

Mark,
Not prefab, the manifolds are '60's vette "Ramshorns" and I had the local muffler shop bend and flare the pipe, made all the pipe long and then cut it to fit as I install it.. The ramshorn's are good for having the crossover go under the shallow part of the oil pan ,keeps the pipe above my skid plate. The ramshorn's have very good flow for manifolds, the old vettes put out around 300 hp with them.
You can order these manifolds from Carr Chevrolet @ 1-800-888-6793
for 99 bucks each.

Something to think about when installing custom pipes is your routing of the pipe too near to lines and wires, if to close to brake lines or meter block, the fluid will heat up and you'll not be able to stop. Fuel lines, you'll vapor lock at the least and catch fire at the worst.. Also watch the wire harness and the speedo cable. If your using a 'glass tub, put heat shields between the tube and the pipes, once fiberglass starts to burn, it's all over. Try not to aim the pipe at the ground, it will really piss off the guy behind you on a dusty trail.

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