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Old 01-28-10, 01:41 AM
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CA Is it possible?

is it possible to weld my exhaust to the hangers? so i can remove the plastic dinghies (thick black rubber band) has anyone done this? if so does anyone know how to weld and possibly weld mines for some $$ thanks!
Old 01-28-10, 01:47 AM
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Originally Posted by Marck
is it possible to weld my exhaust to the hangers? so i can remove the plastic dinghies (thick black rubber band) has anyone done this? if so does anyone know how to weld and possibly weld mines for some $$ thanks!
why would you want to do that?
Old 01-28-10, 01:50 AM
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cus my exhaust keeps shaking and i want my exhaust to be a little higher than it is, its like saggin
Old 01-28-10, 02:11 AM
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You should see my exhaust it falls off like once a month... it's awesome.
Old 01-28-10, 02:14 AM
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haha wow that sucks! well i still need to find someone with a welder. Btw do you live close to milpitas? and what other work do you do besides smog at your garage?
Old 01-28-10, 02:21 AM
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Just smog... I do help club members with various car work though.
Old 01-28-10, 02:23 AM
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oh sick how much is it to smog? cus my buddy needs to get smog because the old owner of the car gutted the cats and hes worried that it wont pass.
Old 01-28-10, 02:31 AM
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You can weld it to the hangers, sure. There is a reason that exhaust systems use flexible rubber rings to hold the exhaust to the chassis though. If you weld it you'll get a lot more engine vibration.
Old 01-28-10, 02:35 AM
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wow that explains everything thanks! no welding for me then
Old 01-28-10, 02:53 AM
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Have you replaced your rubber hangers? You'd be surprised how much bigger your old ones are from stretching compared to new ones.
Old 01-28-10, 09:12 AM
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Originally Posted by wan
Have you replaced your rubber hangers? You'd be surprised how much bigger your old ones are from stretching compared to new ones.
+1

Sometimes putting on new rubber hangers is a pain in the *** cause you need to stretch the **** out of them to get them on the hooks... having the right tools helps LOL
Old 01-28-10, 10:39 AM
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Originally Posted by FC_EDDIE
+1

Sometimes putting on new rubber hangers is a pain in the *** cause you need to stretch the **** out of them to get them on the hooks... having the right tools helps LOL
A couple long screwdrivers for leverage?
Old 01-28-10, 10:59 AM
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The exhaust needs to move because the engine and trans move on their mounts, and there's almost no flex in the exhaust. The exhaust also expands measurably as it heats, and without flexible mounts you're likely to break something.
Old 01-28-10, 11:33 AM
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Weld to tubing directly to the frame rails. I saw it on a race car. Do it.
Old 01-28-10, 11:46 AM
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What i have done in many Road race cars is use small link chains you can buy at your local hardware store.I have done this many times and have had many success.I do mufflers for a living and i have tried other type of hangers on rotaries and they all melt.

Here are some pictures of our E production SCCA Rx7 FC.....This is an exhaust system i built for this car check it out....
Attached Thumbnails Is it possible?-picture-580.jpg   Is it possible?-picture-585.jpg   Is it possible?-picture-588.jpg   Is it possible?-dsc00005.jpg  
Old 01-28-10, 01:29 PM
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How do chains provide ANY dampening?? What the hell is going on, buy hangers like a sane person!
Old 01-28-10, 01:33 PM
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Originally Posted by Marck
oh sick how much is it to smog? cus my buddy needs to get smog because the old owner of the car gutted the cats and hes worried that it wont pass.
Yeah it's not going to pass with gutted cats. Tell your friend to get some cats in.
Old 01-28-10, 04:03 PM
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Originally Posted by Renton
How do chains provide ANY dampening?? What the hell is going on, buy hangers like a sane person!
Well assuming the chain links don't rust together like it appears to have already done on 616's race car, the chain links would allow the exhaust to bounce vertically and swing horizontally. They would vibrate like a mother though

PLEASE someone do this to a street car. I +1 Renton's idea of welding the exhaust to the frame

I have a feeling that any stiff metal connection between the frame and the exhaust will vibrate so loudly it may mask the exhaust noise. Take that coppers!
Old 01-28-10, 04:22 PM
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New rubbers and shorter hangers.
Old 01-28-10, 04:38 PM
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Bolt it to the gas tank. With wood screws.
Old 01-29-10, 01:44 PM
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^ As a professional auto mechanic/smog technician... I would have to say +1 to the gas tank/wood screws idea. It makes a lot of sense.
Old 01-29-10, 02:30 PM
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zipties.
Old 01-29-10, 02:31 PM
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You can also try using radiator hose clamps for exhaust hangers. Zipties don't work. Even metal zipties don't work. You can also just try running no exhaust so you don't have to worry about hangers.
Old 01-29-10, 02:40 PM
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use many zipties.
Old 01-29-10, 03:57 PM
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NO NO use a strap down......LOL
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