aluminum exhaust system
04-30-2009, 12:12 AM
#1
0.0 BAR
Thread Starter
Join Date: Jul 2005
Posts: 28
aluminum exhaust system
Helo everybody!
Im thinking to make my car exhaust system ( from middle of car to back ) include back box with aluminium... Do you think its a gud idea? The idea behind is to lessen weight and some people told me aluminum box sound greater than stainless steel....?
Plz give your opinion!
Thanx
Im thinking to make my car exhaust system ( from middle of car to back ) include back box with aluminium... Do you think its a gud idea? The idea behind is to lessen weight and some people told me aluminum box sound greater than stainless steel....?
Plz give your opinion!
Thanx
04-30-2009, 09:13 PM
#2
0.5 BAR
Join Date: Apr 2009
Location: Oregon
Posts: 81
You can do it. I don't think I could advise it for a street car, but I'm sure people have done it. I would discourage hangers that weld to the pipe. That's a long moment arm to put on a welded aluminum joint. My opinion would be that laying the pipe on a steel hammock of sorts covered in rubber would be the best solution, but I've never tried it.
All aluminum exhaust piping - DSM Forums
You can see post #11 for what I would consider a drag only setup.
All aluminum exhaust piping - DSM Forums
You can see post #11 for what I would consider a drag only setup.
05-01-2009, 11:31 PM
#3
0.0 BAR
Join Date: Mar 2007
Location: Houston, Tx
Posts: 10
I am not one to discourage doing something 'different,' but what you're talking about is pretty unnecessary especially because a well designed, efficient exhaust shouldn't weigh much- relatively
also worth noting is that the weight of the exhaust isn't such a terrible thing considering it's location
I saved over 25 lbs on my crx by cutting the exhaust off before the rear axle and adding a small section to put the fumes out the side of the car
also worth noting is that the weight of the exhaust isn't such a terrible thing considering it's location
I saved over 25 lbs on my crx by cutting the exhaust off before the rear axle and adding a small section to put the fumes out the side of the car
05-02-2009, 07:18 AM
#4
3.0 BAR
Join Date: Oct 2005
Location: St. Augustine FL
Posts: 3,936
an aluminum exhaust is fine as long as it start at the firewall, and no closer to the engine. there really is no downside other than getting it welded.
also, whoever said that the car will sound better with an aluminum muffler is an idiot. the type of metal wont change the sound of your car.
most of the sound depends on the cylinder size and combustion chamber shape. other things in the exhaust do affect the sound, but not material
also, whoever said that the car will sound better with an aluminum muffler is an idiot. the type of metal wont change the sound of your car.
most of the sound depends on the cylinder size and combustion chamber shape. other things in the exhaust do affect the sound, but not material
05-03-2009, 05:18 AM
#6
0.5 BAR
Join Date: Jul 2008
Posts: 132
I run an aluminum exhaust with a stainless downpipe and it's great.
Lighter and cheaper than stainless.
Chances are your muffler(s) will still be stainless, weld the hangers to the mufflers.
looks like this:
mounted:
What's the problem?
I made mine from spare chinese 3" intercooler piping pieces I had laying around.
It insulates sound more poorly than stainless though, it seems- the exhaust piping itself seems to transmit more sound waves- so expect a slightler louder and slightly different sounding exhaust, but it's not major.
Lighter and cheaper than stainless.
Chances are your muffler(s) will still be stainless, weld the hangers to the mufflers.
looks like this:
mounted:
What's the problem?
I made mine from spare chinese 3" intercooler piping pieces I had laying around.
It insulates sound more poorly than stainless though, it seems- the exhaust piping itself seems to transmit more sound waves- so expect a slightler louder and slightly different sounding exhaust, but it's not major.
05-03-2009, 12:49 PM
#8
0.5 BAR
Join Date: Jul 2008
Posts: 132
Change the speaker material (especially the density like you say) and it will resonate differently.
It's obviously not going to make it sound like a different car, but there is a (minorly) different characteristic to it tonally.
05-03-2009, 04:00 PM
#10
3.0 BAR
Join Date: Oct 2005
Location: St. Augustine FL
Posts: 3,936
100% aluminum walter. you can shave quite a few lbs or kilo's where you are from. for a full interior street car, i dont know if its really worth the effort since most people on this site cant weld aluminum, but for a track car, its worth it and if you can weld aluminum then its not any harder than making a steel exhaust.
