C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

85 exhaut hanger missing

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Old Mar 20, 2017 | 07:27 PM
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Default 85 exhaut hanger missing

Can anyone tell me what I am missing I got sidetracked with this hanger issue. My y pipe can bounce along because the rear bracket is ??
Its an 85 does anyone have a bracket or something behind the converter?



Thanks

Last edited by xrav22; Mar 20, 2017 at 07:27 PM.
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Old Mar 20, 2017 | 07:47 PM
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Originally Posted by xrav22
Can anyone tell me what I am missing I got sidetracked with this hanger issue. My y pipe can bounce along because the rear bracket is ??
Its an 85 does anyone have a bracket or something behind the converter?



Thanks
In 85 the cars had a single 2 piece hanger, that went that went from the Transmission tail shaft housing with a heat shield. Later cars had an Additional Rubber hanger that went from Torque Beam to "Y" Pipe

https://www.bing.com/images/search?v...140&ajaxhist=0

and two at the very rear of Exhaust

Last edited by s carter; Mar 20, 2017 at 07:56 PM.
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Old Mar 20, 2017 | 07:59 PM
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Thanks for the confirmation I guess I am going to have to engineer something.
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Old Mar 20, 2017 | 11:51 PM
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Originally Posted by xrav22
Thanks for the confirmation I guess I am going to have to engineer something.
the stock 85 exhaust system is not configured for mid-system support bracket or hanger. I added an 86-91 exhaust hanger to my 85, and retrofitted it with 86-up exhaust. the hanger mounts toward the rear of the "C" support beam and connects to the rear Y-pipe via a rubber dogbone. here's a pic of the hanger -


the two mounting holes for the hanger should be in the 85's C-support beam, and installation is pretty much plug and play. connecting the 86-up style hanger to an 85's rear y-pipe is another story...






Last edited by Joe C; Mar 21, 2017 at 09:42 AM.
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Old Mar 21, 2017 | 03:00 PM
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Originally Posted by Joe C
the stock 85 exhaust system is not configured for mid-system support bracket or hanger. I added an 86-91 exhaust hanger to my 85, and retrofitted it with 86-up exhaust. the hanger mounts toward the rear of the "C" support beam and connects to the rear Y-pipe via a rubber dogbone. here's a pic of the hanger -


the two mounting holes for the hanger should be in the 85's C-support beam, and installation is pretty much plug and play. connecting the 86-up style hanger to an 85's rear y-pipe is another story...





That's a WOW exhaust work !!! Very nice. I am heading to such an overhaul on my exhaust .
Question - after the cat , those are 2" or 3 " pipes ?

Last edited by corvetteracer72; Mar 21, 2017 at 03:01 PM.
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Old Mar 22, 2017 | 02:39 AM
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Originally Posted by corvetteracer72
That's a WOW exhaust work !!! Very nice. I am heading to such an overhaul on my exhaust .
Question - after the cat , those are 2" or 3 " pipes ?
neither, off the top pf my head, i'm thinking the, corsa cat back system's, y-pipe starts at 3 inches, splits into two, 2.5 inch pipes that go into the mufflers -

actually, those pipes WERE on my 85, but removed them because of a magnaflow main cat fitment issue. I could not get the ball joint (cat exit) to seal properly. anyway, removed the system, and installed it on my 90 with a flowmaster main cat. fitment issue solved. I went to a walker, stock OE type replacement exhaust on my 85. to be honest, the damn thing sounds pretty good. not "in your face" loud, but a good healthy sound without drone. must be the age, but my old man ears can't take the noise anymore -

BTW, if you're doing an exhaust overhaul - a while back, I posted a thread, on the whole 85 to 86-91 exhaust retrofit. https://www.corvetteforum.com/forums...low-corsa.html


Last edited by Joe C; Mar 22, 2017 at 02:42 AM.
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Old Mar 22, 2017 | 06:04 AM
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Originally Posted by Joe C
neither, off the top pf my head, i'm thinking the, corsa cat back system's, y-pipe starts at 3 inches, splits into two, 2.5 inch pipes that go into the mufflers -

actually, those pipes WERE on my 85, but removed them because of a magnaflow main cat fitment issue. I could not get the ball joint (cat exit) to seal properly. anyway, removed the system, and installed it on my 90 with a flowmaster main cat. fitment issue solved. I went to a walker, stock OE type replacement exhaust on my 85. to be honest, the damn thing sounds pretty good. not "in your face" loud, but a good healthy sound without drone. must be the age, but my old man ears can't take the noise anymore -

BTW, if you're doing an exhaust overhaul - a while back, I posted a thread, on the whole 85 to 86-91 exhaust retrofit. https://www.corvetteforum.com/forums...low-corsa.html

Very useful post . Had heard about some fitment problems on Magnaflow cats so I might consider buying another brand .
Thanks again.
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Old Mar 22, 2017 | 09:08 AM
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Originally Posted by corvetteracer72
Very useful post . Had heard about some fitment problems on Magnaflow cats so I might consider buying another brand .
Thanks again.
I've had three fitment issues with magnaflow over the years. ya know what that say - "three strikes and you're out!"
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