The one thing reviewers criticized back in the day was the lack of cornering clearance for the GT550 and 750.
I was wondering if the Jemco expansion chambers give better cornering clearance than the OEM exhaust?
I was comparing the Jemco pipes to Omar's 3>1 pipes (www.omarsdtr.com/Ex550suz.html) because cornering would be important to my style of riding.
Horsepower vs clearance, anybody have an opinion? Let me know.
Thanks! Bill
Cornering clearance?
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Unless you jack the back up considerably, the Jemco pipes give less cornering clearance than stock pipes. I have a friend in California that is going to do a set of pipes that tuck up well and will give great cornering clearance.
"If you keep hitting your head against the wall you will eventually put a hole in the wall or your head"
1968 T500 Monoshock, 1972 GT750 Custom, 1973 GT750 Lemans
http://www.sundialmotosports.com
1968 T500 Monoshock, 1972 GT750 Custom, 1973 GT750 Lemans
http://www.sundialmotosports.com
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I have my Buffalo jacked up 1.5 inches, and I still drag the pipes ocassionally. By the way, any pipe you get from Omar's is made by Jemco, so cut out the middleman. Three-into-ones have great cornering clearance but they actually don't make as much power as the stock pipes.
John Easton (JEMCO) told me that he can still make GT750 race pipes. The right pipe is routed above the cases.
Lane
John Easton (JEMCO) told me that he can still make GT750 race pipes. The right pipe is routed above the cases.
Lane
If you stroke it more than twice; you're playing with it.
Too many bikes, too much time, ENOUGH SPACE, FINALLY! Never enough money.........
Too many bikes, too much time, ENOUGH SPACE, FINALLY! Never enough money.........
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Clearance is big.
Thanks! Frustrating to know it won't be easy to get cornering clearance on a GT.
Bill

Bill
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If you are not worried about speed bumps, you can get the pipe kit (unassembled) and weld it up for clearance yourself. I am going to have that done on mine. The center pipe will go lower and the the left and right will tuck inside the lower frame rails.
I am going to have mine tucked like this.

I am going to have mine tucked like this.

"If you keep hitting your head against the wall you will eventually put a hole in the wall or your head"
1968 T500 Monoshock, 1972 GT750 Custom, 1973 GT750 Lemans
http://www.sundialmotosports.com
1968 T500 Monoshock, 1972 GT750 Custom, 1973 GT750 Lemans
http://www.sundialmotosports.com
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Why round?
All the chamber pipes I've seen have a perfect circle cross section.
Has anybody tested pipes with an oval cross section? The oval shape would provide more ground clearance.
Bill

Has anybody tested pipes with an oval cross section? The oval shape would provide more ground clearance.
Bill
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Re: Why round?
Of course they will "work", but not at maximum efficiency. The pipe is basically a "speaker", that the reverse or baffle cone reverses the sound wave in the pipe to pack the charge back into the cylinder. A oval cone would lose some of it's directional wave.#Buffalo Bill wrote:All the chamber pipes I've seen have a perfect circle cross section.![]()
Has anybody tested pipes with an oval cross section? The oval shape would provide more ground clearance.
Bill
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