Torque cones or no torque cones???
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Cruiser
Joined: Aug 2011
Posts: 159
Likes: 3
From: Upper Bucks County, PA
Torque cones or no torque cones???
I have an 89 FLHS and I am putting on a true dual exhaust system. Heard pros n cons about torque cones anyone have any advice/experiences with them??? Do they really make a difference?
Thanks in advance,
Mike
Thanks in advance,
Mike
Dirt don't hurt
Joined: Jan 2011
Posts: 21,062
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From: Haslet Texas
While I have never tried them I gather they are for use on pipes without baffles.
Elite HDF Member
Joined: Sep 2007
Posts: 4,468
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From: Bluffton, South Carolina
I for one have tried them and didn't really like them. I felt they kept too much heat in the exhaust valve pocket. I prefer a 1/4" bolt or lolipop in the rear of the pipe.
John
John
Stellar HDF Member
Joined: Apr 2009
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From: Northern Ontario
John what exactley does the 1/4inch bolt or lolipop do?
Advanced
Joined: Feb 2010
Posts: 80
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From: Stevensville, MI
On a sportster I tried with and with out the cones and honestly I couldn't tell the difference. I eventually got rid of the straight pipes cause I hated the lose of low end torque.
Last edited by mk2wilson; May 31, 2013 at 08:36 PM. Reason: Drunk typing
Road Master
Joined: Jun 2009
Posts: 1,062
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From: Beautiful SW Missouri Ozark Mountain Country
Bikerlaw posted a thread about installing lollipops in his drag pipes. Maybe some useful information for you. https://www.hdforums.com/forum/evo-c...op-update.html
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Cruiser
Joined: Aug 2011
Posts: 159
Likes: 3
From: Upper Bucks County, PA
Grbrown I was planning on taking the baffles out and running the cones but I m not sure I will gain any thing I guess I will put pipes on n try w and w/out baffles then maybe try switching the cones in and see what if any gain I get. Thanks everyone!! Ride safe
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Elite HDF Member
Joined: Sep 2007
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From: Bluffton, South Carolina
They create/modify the back pressure that the engine "sees". If you put a bike with straight pipes on the dyno and makes some runs, then hold a screwdriver across the open end of the pipes you will see a positive difference in the torque numbers.
John
John