Running a straight pipe? - ZX6R Forum
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post #1 of 33 Old 02-18-2017, 05:52 PM Thread Starter
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Running a straight pipe?

Is running a straight pipe okay for the engine if tuned properly with a PC5/Bazzaz? Drawbacks even of tuned?
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post #2 of 33 Old 02-18-2017, 06:10 PM
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No, it's morally, ethically, mechanically and aesthetically wrong.

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post #3 of 33 Old 02-18-2017, 06:18 PM
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dont most gp bikes run straights though? Clesrly his bike is not one, but..

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post #4 of 33 Old 02-18-2017, 06:26 PM
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dont most gp bikes run straights though? Clesrly his bike is not one, but..
I would say "simple-looking" rather than "straight". Those are all highly engineered exhausts by some of the best exhaust manufacturers. They are more than just "straight" pipes even though they look like it and they're loud, because there isn't much muffling to them.
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post #5 of 33 Old 02-18-2017, 07:13 PM
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Straight as in NO muffler, race cars have exhausts they spend a long time getting all the pipes to be the same length and bends to have equal back pressure on all cylinders.
If you do that, then have fun. Be sure the places your driving don't have noise ordinances.

My can has no baffles but is much quieter than a exhaust with no can.
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post #6 of 33 Old 02-18-2017, 07:30 PM
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Now why the actual f*ck would you do something like that?
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post #7 of 33 Old 02-18-2017, 07:31 PM
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Is running a straight pipe okay for the engine if tuned properly with a PC5/Bazzaz? Drawbacks even of tuned?
Ask a tuning shop in your area what they recommend.

Biggest drawback will be the damage to your hearing....... and everyone else's.

"There's this adage that we have 2 ears and one mouth so we should listen twice as much as we talk. Unfortunately with the Internet people have taken this old adage and turned it around. They have two eyes and 10 fingers so they think they need to post 5 times as much as they read. And since they have 10 fingers and one brain, they only have to think 10% of the time! "
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post #8 of 33 Old 02-18-2017, 08:44 PM
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post #9 of 33 Old 02-18-2017, 08:52 PM
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A lot of engineering goes into the shape/ design of race exhausts. It's not as simple as the straightest, shortest way through.

Take for example the classic brilliant Britten V1000. It most definetely does not have a streight through design as those twists and turns tune the powerband response.



MotoGP and SBK machines are constantly making changes to their exhausts designs as well. I remember a few years back aftermarket exhaust companies were marketing 2stroke motogp style cans that are completely irrelevant today.

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post #10 of 33 Old 02-19-2017, 12:08 AM
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Damn. Britten. Need to post the pic of me sitting on top of Cardinal #1...
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post #12 of 33 Old 02-19-2017, 03:40 AM
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Damn. Britten. Need to post the pic of me sitting on top of Cardinal #1...
Still waiting on this......
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"There's this adage that we have 2 ears and one mouth so we should listen twice as much as we talk. Unfortunately with the Internet people have taken this old adage and turned it around. They have two eyes and 10 fingers so they think they need to post 5 times as much as they read. And since they have 10 fingers and one brain, they only have to think 10% of the time! "
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post #13 of 33 Old 02-19-2017, 03:45 AM
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A lot of engineering goes into the shape/ design of race exhausts. It's not as simple as the straightest, shortest way through.

Take for example the classic brilliant Britten V1000. It most definetely does not have a streight through design as those twists and turns tune the powerband response.



MotoGP and SBK machines are constantly making changes to their exhausts designs as well. I remember a few years back aftermarket exhaust companies were marketing 2stroke motogp style cans that are completely irrelevant today.
One of the most original, out of the box engineering companies ever to hit the motorcycle industry. Gone far too soon. So many clean sheet thoughts expressed in carbon and metal, which resulted in measurable improvements in performance.

I'd love to see someone build a kit to convert a current gen vee twin into something similar. Heck, even the modern racing narrow angle vee fours could probably be set up in a similar fashion.
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"There's this adage that we have 2 ears and one mouth so we should listen twice as much as we talk. Unfortunately with the Internet people have taken this old adage and turned it around. They have two eyes and 10 fingers so they think they need to post 5 times as much as they read. And since they have 10 fingers and one brain, they only have to think 10% of the time! "
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post #14 of 33 Old 02-19-2017, 06:47 AM
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A lot of engineering goes into the shape/ design of race exhausts. It's not as simple as the straightest, shortest way through.

Take for example the classic brilliant Britten V1000. It most definetely does not have a streight through design as those twists and turns tune the powerband response.



MotoGP and SBK machines are constantly making changes to their exhausts designs as well. I remember a few years back aftermarket exhaust companies were marketing 2stroke motogp style cans that are completely irrelevant today.
Yep. Another more recent example is from the Ducati Panigale. A lot of people complained of the awkward looking loop that one of the pipes makes in the back but it's all done to get the length of both headers equal. Since then, they've tested a lot of other designs for the WSBK team and what Chaz and his teammate ran at the end of last season is nothing like what the production bikes come with. And those changes, ugly or not, have gained them performance even though they look "straight".

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post #15 of 33 Old 02-19-2017, 10:43 AM Thread Starter
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I needed advice/suggestion as I have no exhaust right now and would like to my local exhaust shop for them to fabricate a link pipe for me. Doing so, I don't have a way to get the motorcycle there other than riding it. The best I can do before all that is a S bend pipe that I would connect to the headers and go to the shop.
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