Would this be safe?

Oct 31, 2003 9 Replies

Just as a temporary thing I was toying with the idea of putting some fiberglass insulation in my glasspack mufflers to help deaden the sound a little... Would that be safe? Isn't there already fiberglass packing in the very small surrounding chamber on these mufflers? I'd be worried that the heat from the exhuast might actually catch the fiberglass on fire. Could that happen? I know this isn't an ideal or permanent solution but it would be nice to just quieten these glasspacks down just a little bit before I pick up some turbo mufflers. Thank you.


-- Travis

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meek shall inherit the earth. After I'm finished with it.:wq!


travis did pass the time by typing:

Fiberglass insulation is real fine and would most likely melt from the heat. Turn up the sterio a bit. :)

Do you have tail pipes behind those glass packs?

Nevermind, I read somewhere else that you do not have tail pipes. If you get new mufflers ans still have no tail pipes, you won't be happy. You need tail pipes so the mufflers will not be so noisy.

I run a header with a MagnaFlow muffler and a tail pipe that goes over the axle and out the back, and the sound is very nice. Before the tail pipe went on, it was way too loud. You might object to the noise with the glass packs and tail pipes, but getting a good muffler and still no tail pipes won't be much of an improvement.

Travis,

Aside from what everyone has said about needing tailpipes, you CAN go to any decent sized motorcycle shop and get muffler re-packing material. It's used by motorcyclists all the time.

Larry

On Fri, 31 Oct 2003 14:43:35 -0800, "CRWLR" shared the following:

But how do I fit a tailpipe to it? The headers exit on the outside of the frame. I'd have to run the tailpipe under the frame and lose GOBS of ground clearance. There's just no room for tailpipes if I put attach any kind of mufflers to the headers. See this picture?

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could put about a 3" long tailpipe there and that's it. See what Imean?

-- Travis

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meek shall inherit the earth. After I'm finished with it.:wq!

On Fri, 31 Oct 2003 23:13:20 GMT, "Larry St. Regis" shared the following:

Hmmm... There are 2 motorcycle shops nearby. I may have to check that out. Thanks, Larry.

-- Travis

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meek shall inherit the earth. After I'm finished with it.:wq!

Travis,

This probably wont make as much difference as you want, but a set of turndowns on the ends of the mufflers will help some, and you won't lose any ground clearance either.

Chris

I would go to a local muffler shop and have them make me tailpipes. They could run along the frame and have the up loop to clear the rear axle tucked in the wheel well.

I don't know about the laws where you are, but here, you are not allowed to have an exhaust system exit under the passenger compartment or in front of the rear wheel. The wheel will vortex the exhaust and you will get fumes big time.

Mike

86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's

travis wrote:

My muffler shop had his own bending machine, and he tucked my pipe between the skid plate and the floor, inside the frame rails. He made some bends that routed the pipe over the axle and out the back between the spring and the gas tank.

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