Running exhaust under the axle
#1
Member
Thread Starter
iTrader: (1)
Join Date: Sep 2006
Location: North Dakota
Posts: 173
Likes: 0
Received 0 Likes
on
0 Posts
Car: 86' Z28 Camaro
Engine: 357 TPI -- Dart Heads -- Voodoo Cam
Transmission: Built 700r4
Axle/Gears: 3.23 Posi
Running exhaust under the axle
Doing a new exhaust setup and putting an electric exhaust cutout somewhere in the I-pipe and running a tailpipe off of it to have it exit on the passenger side out the back.
Was wondering if it were possible if I put the cutout in the red circle and ran the pipe under the axle in the black circle??
Was wondering if it were possible if I put the cutout in the red circle and ran the pipe under the axle in the black circle??
#2
Senior Member
iTrader: (2)
Join Date: Jul 2007
Location: Tampa/New Hampshire
Posts: 777
Likes: 0
Received 4 Likes
on
4 Posts
Car: 91 camaro RS, 87 T/A
Engine: 350 TBI, 305 TPI
Transmission: 700r4
Axle/Gears: 4th Gen 3.42/BW 3.45
Re: Running exhaust under the axle
you would loose a ridiculous amount of ground clearance in doing that. Why dont you place the cutout further towards the engine and run your exhaust the normal stock route?
#3
Member
Join Date: Dec 2006
Location: Evington,Va
Posts: 454
Likes: 0
Received 0 Likes
on
0 Posts
Car: 93 Formula,88 T/A,01 WS6
Engine: 93 LT1,88TPI305,01 LS1
Transmission: 93 700R4,88 700R4,01 T56
Axle/Gears: 93 3:73's,88 3:42,01 3:40
Re: Running exhaust under the axle
Uh.........you know the rear axle moves up and down,dont you? Not only would you lose ground clearance......you would have to chain your axle to the bottom of the car so it wouldnt articulate down...........think about it........dont you think it would look a little bit ......uh......hacked up and crappy? Just buy the cut out, buy a turn down and just run the turn down
#5
Member
Join Date: Dec 2008
Location: Mebane, NC
Posts: 308
Likes: 0
Received 0 Likes
on
0 Posts
Car: 88 GTA
Engine: 305 V8 LB9
Transmission: 4 sp. Auto-4L60
Axle/Gears: 3.27
Re: Running exhaust under the axle
Yep...you hit one good pothole and that nice new custom exhaust is toast.
#6
Supreme Member
iTrader: (5)
Join Date: Aug 2006
Location: Cleveland, Ohio
Posts: 2,491
Likes: 0
Received 6 Likes
on
6 Posts
Car: 89' IROC-Z
Engine: LO3
Transmission: 700R4
Axle/Gears: 10-Bolt/2.73
Re: Running exhaust under the axle
I have an idea.
Where the over axle pipe 90*'s into the muffler have a straight pipe off that connected to the outlet exhaust pipe for the right rear tip, this way flip the switch and it bypasses the muffler STILL, and would still exit out the right rear.
Fitment issues of course, but an idea no?
Where the over axle pipe 90*'s into the muffler have a straight pipe off that connected to the outlet exhaust pipe for the right rear tip, this way flip the switch and it bypasses the muffler STILL, and would still exit out the right rear.
Fitment issues of course, but an idea no?
#7
Member
Thread Starter
iTrader: (1)
Join Date: Sep 2006
Location: North Dakota
Posts: 173
Likes: 0
Received 0 Likes
on
0 Posts
Car: 86' Z28 Camaro
Engine: 357 TPI -- Dart Heads -- Voodoo Cam
Transmission: Built 700r4
Axle/Gears: 3.23 Posi
Re: Running exhaust under the axle
Heh, I should posted my initial idea first.
I have to have the extra pipe off the cutout because it sounds like an old tractor without a longer tailpipe, plus the logner pipe is needed to place my higher exhaust throughput in the lower rpms where I make all of my power/tq, plus it reverberates so bad inside with anything that's not out the back even with turndowns.
Having the open pipe I have right now isn't very loud in the cabin at all, plus it has alot more tone than just open y or muffler cutoff. Plus then I can retain the dual exit look. I've got straight pipe through an offroad y-pipe with a muffler delete and single exit on the drivers side rigth now.
This was my initial idea.
But looking closer into it i'd have to have the exhaust hanger welded onto the cutout or pretty close to one side, thought that going under the axle would maybe work after seeing a post of a 4th gen on this site that had 2 pipes running under the axle one on each side, I can't find the link now.
EDIT!
Found the post, it was on ls1tech.
http://ls1tech.com/forums/generation...-pics-56k.html
duals going under the axle, and he said he didn't have any problem? Plus he is lowered, whereas I am stock height. The stock I-pipe that I have right now would be the same height as the pipe running out the back and that doesn't scrape? So no ground clearance would be lost, it would be the same.
I have to have the extra pipe off the cutout because it sounds like an old tractor without a longer tailpipe, plus the logner pipe is needed to place my higher exhaust throughput in the lower rpms where I make all of my power/tq, plus it reverberates so bad inside with anything that's not out the back even with turndowns.
Having the open pipe I have right now isn't very loud in the cabin at all, plus it has alot more tone than just open y or muffler cutoff. Plus then I can retain the dual exit look. I've got straight pipe through an offroad y-pipe with a muffler delete and single exit on the drivers side rigth now.
This was my initial idea.
But looking closer into it i'd have to have the exhaust hanger welded onto the cutout or pretty close to one side, thought that going under the axle would maybe work after seeing a post of a 4th gen on this site that had 2 pipes running under the axle one on each side, I can't find the link now.
EDIT!
Found the post, it was on ls1tech.
http://ls1tech.com/forums/generation...-pics-56k.html
duals going under the axle, and he said he didn't have any problem? Plus he is lowered, whereas I am stock height. The stock I-pipe that I have right now would be the same height as the pipe running out the back and that doesn't scrape? So no ground clearance would be lost, it would be the same.
Last edited by 86z28iroc-z; 02-23-2009 at 09:47 PM.
Trending Topics
#8
Member
Thread Starter
iTrader: (1)
Join Date: Sep 2006
Location: North Dakota
Posts: 173
Likes: 0
Received 0 Likes
on
0 Posts
Car: 86' Z28 Camaro
Engine: 357 TPI -- Dart Heads -- Voodoo Cam
Transmission: Built 700r4
Axle/Gears: 3.23 Posi
Re: Running exhaust under the axle
No1 has a response to the how that guy ran his exhaust?
#9
Senior Member
Join Date: Jun 2008
Location: Norfolk VA
Posts: 1,298
Likes: 0
Received 2 Likes
on
2 Posts
Car: 85 Camaro IROC
Engine: 5.7 TPI
Transmission: 700-R4
Axle/Gears: open rear, 3.42 gears
Re: Running exhaust under the axle
your pic you drew is pretty much exactly what the borla system is...
so that would work just fine.
i wouldnt do under the axle, even if a 4th gen did it just fine.
so that would work just fine.
i wouldnt do under the axle, even if a 4th gen did it just fine.
Thread
Thread Starter
Forum
Replies
Last Post
red90IROCls1
Transmissions and Drivetrain
10
08-25-2015 06:56 AM
eightsixseven
Tech / General Engine
1
08-14-2015 03:09 PM