Exhaust question...need torque cones?
Exhaust question...need torque cones?
Hey guys i am gunna throw samson extreme bone shakers exhaust on my 2011 street bob i think it would look sick! www.samsonusa.com/E2-101.html i contacted samson and they said they would fit and they would coat in black ceramic for me plus military discount woohoo!!! ...but my question is will i need torque cones to keep low end torque? any comments would be greatly appreciated!
Last edited by sbfreak103009; Nov 7, 2011 at 10:29 AM.
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AZrider is correct. The torque cones will help a lot with low to mid range performance. You need velocity in the exhaust as well as the right amount of back pressure to get best performance. The torque cones also give you an anti-reversion effect as well.
Thank you,
JR
Thank you,
JR
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From: NorNev
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AZrider is correct. The torque cones will help a lot with low to mid range performance. You need velocity in the exhaust as well as the right amount of back pressure to get best performance. The torque cones also give you an anti-reversion effect as well.
Thank you,
JR
Thank you,
JR
What is effective is a baffle, or a lollipop fitted across the exhaust outlet. They break up the reversion wave that can bounce back to the cylinder and mess with combustion on poorly designed exhaust systems, particularly systems without an expansion area and/or baffle.
PS - This is nothing to do with 'back pressure', which is a fallacy. The back pressure myth comes about because free-flowing exhausts have less of it and this led to leanness on carb bikes because they couldn't adjust for the extra air. This used to results in burnt exhaust valves. Torque cones would help a bit with this because they reduced the flow back towards more stock-like flow, which brought the AFR back from lean, not because they did some magic thing with back pressure.
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Torque cones will only help if your running nothing in your pipes. Like zero, zip, empty hollow tubes. Then they help with midrange torque. If your running baffles or lolipops, your fine.
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Last edited by bikerlaw; Nov 7, 2011 at 07:34 PM.
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JR
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From: NorNev
Could you share your own dyno testing showing the improvements using your company's torque cones?
see i have seen so many people with mixed reviews of torque cones...but if i went baffles could i get a set that would still make the pipes sound as good and as loud while still getting the torque the i would otherwise loose? and what would fit these pipes...please help!!! thanks everyone for the comments