Aluminum exhaust tubes, why not?

[2percenter]

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]

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

[Ed Carpenter]

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

[Ed Wright]

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

[Jeff Lee]

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]

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]

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

[Myron Piatek]

Originally Posted by Ed Wright

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

Mine did!

I'm always messing with jetting and after a couple of years running TTI step headers with collectors and jetting it as best as I could, I switched to a 3" exhaust with an X-pipe and ending at the rear housing with Dynomax Ultraflow mufflers. The extra 60+ lbs was removed from elsewhere in the car and it wanted jetting 1-2 numbers less. But in the end, I picked up .05-.10. I believe it was mainly the X-pipe.

If I didn't think it helped, it wouldn't have stayed on. It's cramped to swap center sections and the exhaust has to be dropped for trans swaps or disconnected for teardown.

It scared the heck out of me for a while because I heard things I never heard before!

[Ed Wright]

I would have to question the headers. An H pipe between the headers might have had a similar effect, but I have a problem thinking the headers were correct. I have had some pretty long collectors in the past on my old Jr Stockers. Like 24" extensions on one PG car. Total of 36". Can't tell you how many people told me it was wrong. Wrong headers and too poor to buy more at the time. LOL

[2percenter]

An Aluminum collector might not survive the heat source from the primary header tubes that's blasting only a few inches behind. The rest of the tubing doesn't see actual flame but a respectable amount of heat.