harley exhaust question
Elite HDF Member
Joined: Aug 2007
Posts: 4,722
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RE: harley exhaust question
ORIGINAL: snooper0069
why does harley connect one muffler to another. On some after market exhaust for harleys they dont have this and are seperate pipes.
why does harley connect one muffler to another. On some after market exhaust for harleys they dont have this and are seperate pipes.
Road Captain
Joined: Jan 2008
Posts: 502
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From: currently NC
RE: harley exhaust question
It also helps equalize the exhaust. If you notice on some systems, the rear head pipe may be shorter than the front. The crossover helps both cylinders breath equally.
Advanced
Joined: Jun 2007
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From: Sturgis SD
RE: harley exhaust question
I hate to be that guy but stregth has almost nothing do with why they connet the pipes. If you look you will see a that the connetion is made with a smaller tube between the two major pipes. This little connection is a way to produce the desired back pressure. This connetion is a way to try and get the exhaust to preform better while still being with in the EPA regulations for exhaust and noise. The little connection balances backpressure differences between the two cyclinders.Their is also a scavenging affect that can take place in some exhaust systems when set up correctly but that is a more complicated issue and revolves more around 2-1 systems. Most good after market systems will havea connectionlikethe stock systemas well. As for other pipes that are not connected really it comes down to what you want looks or preformance, 2-1 or conncected systems are easier to tune and generally out perform system that are not connected. Snooper I am not anexhaust kingpin but i did work in a service department as I went through college to be an engineering so Ihave a better idea than mostif you have some exhaust questions send me a PM.
Elite HDF Member
Joined: Aug 2007
Posts: 4,722
Likes: 7
RE: harley exhaust question
ORIGINAL: Sarge4life
It also helps equalize the exhaust. If you notice on some systems, the rear head pipe may be shorter than the front. The crossover helps both cylinders breath equally.
It also helps equalize the exhaust. If you notice on some systems, the rear head pipe may be shorter than the front. The crossover helps both cylinders breath equally.
Cruiser
Joined: Jan 2008
Posts: 217
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From:
RE: harley exhaust question
ORIGINAL: Sarge4life
It also helps equalize the exhaust. If you notice on some systems, the rear head pipe may be shorter than the front. The crossover helps both cylinders breath equally.
It also helps equalize the exhaust. If you notice on some systems, the rear head pipe may be shorter than the front. The crossover helps both cylinders breath equally.
different names same thing.
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