Do Bends Effect Power.. - Page 3 - Yamaha R6 Forum: YZF-R6 Forums
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post #21 of 39 (permalink) Old 09-04-2008, 06:44 PM
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Re: Do Bends Effect Power..

IMBOBDOLE...excellent, simple answer using the laws of physics
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post #22 of 39 (permalink) Old 07-09-2009, 10:04 PM
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Re: Do Bends Effect Power..

can we through the use of back pressure in there?
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post #23 of 39 (permalink) Old 07-10-2009, 10:49 AM
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Re: Do Bends Effect Power..

That's why Mandrel Benders were invented.
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post #24 of 39 (permalink) Old 07-10-2009, 11:50 AM
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Re: Do Bends Effect Power..

thanks to everyone for your input and for the tech speak. I actually appreciate tech speak because most of my
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(BS) is in Mechanical Engineering. It warms my heart to know that there are others who are not afraid of big words on an R6 somewhere.
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post #25 of 39 (permalink) Old 07-23-2009, 10:31 AM
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Re: Do Bends Effect Power..

All I can say is that you get what you pay for. Many of the better designed exhaust systems will be mandrel or pie cut (if titanium) and give the maximum radius.
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post #26 of 39 (permalink) Old 12-05-2009, 04:41 PM
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Re: Do Bends Effect Power..

I also had to chime in on this (even tho its semi-OT), mainly because there are people who are on a quest for power and believe that gutting their catalytic converter will create increases.

Do yourself a favor and do not gut the cat. Doing this will cause a little cavity in your exhaust, which will cause the high pressure gasses to decrease pressure as they enter that hollowed out cavity and then have to increase pressure again as it leaves that cavity. This whole "action" slows down the exhaust flow and will HURT power.
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If you want to get rid of the cat, get a pipe that will replace the segment of pipe that the cat is in. Doing this still MAY cause power loss, but no where near as much as just gutting the cat because in both scenarios you are still changing the TUNED exhaust's characteristics. I won't get into this much, as I am not a master of thermodynamics...

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post #27 of 39 (permalink) Old 02-25-2010, 02:20 PM
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Re: Do Bends Effect Power..

This Thread Is From 2005!!!!

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post #28 of 39 (permalink) Old 02-25-2010, 02:36 PM
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Re: Do Bends Effect Power..

Quote:
Originally Posted by collins View Post
This Thread Is From 2005!!!!
And yet you posted in it.....
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And its actually from 2003...

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post #29 of 39 (permalink) Old 07-05-2011, 09:58 PM
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Re: Do Bends Effect Power..

Try this test at home. Take a hose pipe and turn on the tap a set amount - say one turn. Time it a few seconds with the pipe dead straight and see how much water ends up in a measuring jug. Then gently loop the pipe, even in a complete circle and do the same again. If you are accurate you will ene dup with exactly the same amount of water each time. Exhaust gas is just the same... 2-Even when bends do not affect pipe radius, they still CAN cause a performance issue, albeit a small one in this case. But since we're talking technical terms, they do affect the performance. With a completely straight pipe, the exhaust is being shot out and, in a perfect world, is not hitting anything at all. (Read:no restrictions) The fact of the matter is that when you have a bend in the pipe, it is hitting the wall at an oblique angle. When the exhaust hits that wall, it causes a restriction, and herego a detraction from overall performance.


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post #30 of 39 (permalink) Old 07-05-2011, 10:13 PM
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Re: Do Bends Effect Power..

Quote:
Originally Posted by kena View Post
SPAM
I see what you did there...


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