Aluminum exhaust tubes, why not?

2percenter · 05-22-2012, 06:19 PM

I know this has been posted before, but as I understand it, exhaust temperatures are lower as they leave down at the collectors into the exhaust system, mufflers and then to the tail pipes. Why is that people have not explored this easy way of shedding almost 60 pounds off the bottom of the chassis by using Aluminum pipe. I've seen it in many sizes ranging from 2" to 5" at the local speed store. I know that the Turbo guys use it for their intake inlets/intercoolers and such,
I believe that the temps are not hot enough to melt the pipes from the collectors on back, unless it has to do with heat escaping too fast through that alloy.
Anyone?.

Dinsdale · 05-22-2012, 07:04 PM

60 lbs of What?? I don't know of any race cars that run exhaust past the collectors unless it's one of the "street" classes. You might want to post this question in a different section.

2percenter · 05-22-2012, 07:17 PM

60 or more pounds of exhaust pipe weight. I know of some street/race cars that out run some pure non exhaust race cars. Some cars even run better wearing a full exhaust.
Figured every one is looking for that advantage and losing weight can be one of course.

Ed Wright · 05-22-2012, 07:26 PM

That's funny right there, I don't care who ya are. LOL

Ed Carpenter · 05-22-2012, 09:04 PM

I've never seen a s/ss car with full exhaust. Not being a smart *** just never seen it.

Ed Wright · 05-22-2012, 09:17 PM

They wouldn't run quicker with full exhaust either. LOL

Jeff Lee · 05-22-2012, 10:28 PM

Judging by the limited number of posts by the OP, I'm assuming he's new to the site and may not understand S/SS racing is the same as what he understands it to be.
So thanks for the heads up, your idea is sound but not applicable here.

Rory McNeil · 05-22-2012, 11:49 PM

Instead of saving some weight with aluminum exhaust, leave the entire exhaust off, and save all the weight! If a car was to actually run faster with some exhaust restriction, as well as carrying the extra weight, seems it wasn`t setup or tuned very well to start with.

2percenter · 05-23-2012, 12:55 AM

ooohps. I stand corrected. you guys are right, I totally did not realize the thread.

Harry 6674 · 05-23-2012, 10:48 AM

I used to run 2" aluminum sprinkler line on my cars back in the 60s. It will work.

05-22-2012, 06:19 PM	#1
2percenter Junior Member Join Date: Apr 2012 Posts: 14 Likes: 0 Liked 0 Times in 0 Posts	Aluminum exhaust tubes, why not? I know this has been posted before, but as I understand it, exhaust temperatures are lower as they leave down at the collectors into the exhaust system, mufflers and then to the tail pipes. Why is that people have not explored this easy way of shedding almost 60 pounds off the bottom of the chassis by using Aluminum pipe. I've seen it in many sizes ranging from 2" to 5" at the local speed store. I know that the Turbo guys use it for their intake inlets/intercoolers and such, I believe that the temps are not hot enough to melt the pipes from the collectors on back, unless it has to do with heat escaping too fast through that alloy. Anyone?.

05-22-2012, 07:04 PM	#2
Dinsdale Member Join Date: Oct 2004 Location: Canada Posts: 313 Likes: 0 Liked 6 Times in 2 Posts	Re: Aluminum exhaust tubes, why not? 60 lbs of What?? I don't know of any race cars that run exhaust past the collectors unless it's one of the "street" classes. You might want to post this question in a different section. __________________ Dale Posnick

05-22-2012, 07:17 PM	#3
2percenter Junior Member Join Date: Apr 2012 Posts: 14 Likes: 0 Liked 0 Times in 0 Posts	Re: Aluminum exhaust tubes, why not? 60 or more pounds of exhaust pipe weight. I know of some street/race cars that out run some pure non exhaust race cars. Some cars even run better wearing a full exhaust. Figured every one is looking for that advantage and losing weight can be one of course.

05-22-2012, 07:26 PM	#4
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 390 Times in 170 Posts	Re: Aluminum exhaust tubes, why not? That's funny right there, I don't care who ya are. LOL __________________ Ed Wright 4156 SS/JA

05-22-2012, 09:04 PM	#5
Ed Carpenter Live Reporter Join Date: May 2006 Location: Dripping Springs, Tx Posts: 2,709 Likes: 186 Liked 520 Times in 132 Posts	Re: Aluminum exhaust tubes, why not? I've never seen a s/ss car with full exhaust. Not being a smart *** just never seen it. __________________ Ed Carpenter 2005 Chevy Cobalt A/SM Race Engine Development

05-22-2012, 09:17 PM	#6
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 390 Times in 170 Posts	Re: Aluminum exhaust tubes, why not? They wouldn't run quicker with full exhaust either. LOL __________________ Ed Wright 4156 SS/JA

05-22-2012, 10:28 PM	#7
Jeff Lee VIP Member Join Date: Jul 2007 Location: Anthem, Arizona Posts: 2,766 Likes: 0 Liked 3 Times in 3 Posts	Re: Aluminum exhaust tubes, why not? Judging by the limited number of posts by the OP, I'm assuming he's new to the site and may not understand S/SS racing is the same as what he understands it to be. So thanks for the heads up, your idea is sound but not applicable here. __________________ Jeff Lee 7494 D/S '70 AMX Last edited by Jeff Lee; 05-23-2012 at 02:23 AM.

05-22-2012, 11:49 PM	#8
Rory McNeil VIP Member Join Date: Jun 2007 Location: from Vancouver BC Canada, now in Nova Scotia Posts: 1,311 Likes: 314 Liked 1,102 Times in 301 Posts	Re: Aluminum exhaust tubes, why not? Instead of saving some weight with aluminum exhaust, leave the entire exhaust off, and save all the weight! If a car was to actually run faster with some exhaust restriction, as well as carrying the extra weight, seems it wasn`t setup or tuned very well to start with. __________________ NHRA 6390 STK M/S 85 Mustang

05-23-2012, 12:55 AM	#9
2percenter Junior Member Join Date: Apr 2012 Posts: 14 Likes: 0 Liked 0 Times in 0 Posts	Re: Aluminum exhaust tubes, why not? ooohps. I stand corrected. you guys are right, I totally did not realize the thread.

05-23-2012, 10:48 AM	#10
Harry 6674 Senior Member Join Date: Dec 2006 Posts: 589 Likes: 0 Liked 0 Times in 0 Posts	Re: Aluminum exhaust tubes, why not? I used to run 2" aluminum sprinkler line on my cars back in the 60s. It will work.