BADASS of New England

An automobile club for the enthusiast who enjoys the last of the big GM cars. The rear wheel drive B and D bodys. Chevrolet Impala SS, Caprice, 9C1, Buick Roadmaster, Oldsmobile Custom Cruiser, Cadillac Fleetwood
 
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 Running turn downs?

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Tomz9C1

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Posts : 1489
Join date : 2009-01-21
Age : 54
Location : Rumford, Maine

PostSubject: Running turn downs?   Sun Dec 07, 2014 9:26 pm

I'm going to run a turn down on my 9C1. My concern is when I place my car on the lift, the turn down pipe will hit the axle. Anyone have some pics or good info? Thanks guys.
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MASShole9C1

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Join date : 2009-12-16

PostSubject: Re: Running turn downs?   Mon Dec 08, 2014 11:15 am

Maybe I'm not understanding you properly, but turn downs typical end before the axle after the muffler outlet and at a slight outward angle (to help keep exhaust fumes from collecting and concentrating under the floor pan)

I hope this helps or gets you close.

Not my pics*

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Tomz9C1

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Join date : 2009-01-21
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Location : Rumford, Maine

PostSubject: Re: Running turn downs?   Mon Dec 08, 2014 12:47 pm

Thanks Brian, That's what I'm talking about. Thanks for the pics. Just concerned about the axle interference when the rear suspension comes down when elevated on the lift. The hard part is getting piece made without the " questions" but I think I know a guy Wink
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MASShole9C1

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PostSubject: Re: Running turn downs?   Mon Dec 08, 2014 12:53 pm

You need actual turn downs? Just use off the shelf tail pipes from advance/auto zone. I have a set but am waiting to get different mufflers than the Walker replacements on the Roadmaster. What is it, 2 1/4? Fwiw I just passed inspection with NO tailpipes. Just dumped at the mufflers. Better to have turn downs, like I said to direct fumes out from under and away from the car.
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Pooge

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PostSubject: Re: Running turn downs?   Thu Dec 11, 2014 11:00 am

I have a setup very similar to what Brian posted, It is not "legal" in NH because it doesn't dump behind the passenger compartment, but I have not had issues inspecting or with fumes at all

Doug

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1996 Impala SS - 45K original miles - 5.3 LS swap - Brand new Bilsteins...WHAT A DIFFERENCE!
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Tomz9C1

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Join date : 2009-01-21
Age : 54
Location : Rumford, Maine

PostSubject: Re: Running turn downs?   Fri Dec 12, 2014 5:09 am

Decided to run the OTA pipes for Safety reasons, Ordered the correct offset/ offset mufflers so that the OTA pipes will line up properly with the mufflers. Turn downs were a cheap alternative.
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