torque cones ? do they work ?
Road Master
Joined: Dec 2012
Posts: 1,239
Likes: 511
From: Getzville New York
i have run them for a few years first with new pipes and a/c and it did seem to cure the poping on decel the bike now has cams pistons and head work i still run the torque cones no scientific proof that they are of any benefit but my common sense says leave them installed
Grand HDF Member
Joined: May 2008
Posts: 4,326
Likes: 3,614
From: Picayune, Ms.
They work if you are using an open exhaust of some type. Either straight drag pipes and even some of the early Screaming Eagle pipes.
I had to install them on my wife's '85 FXEF to prevent a flat spot in acceleration and popping in the exhaust on deceleration. This aids in tuning the carb. As you may know the backfiring through the carb or pipes are two of the "tells" on what to/how adjust the idle mixture screw.
Anyway they are cheap enough, get the ones from Dennis Kirk they use to be the least expensive. Mine disappeared when I sent the engine in for HD overhaul.
I had to install them on my wife's '85 FXEF to prevent a flat spot in acceleration and popping in the exhaust on deceleration. This aids in tuning the carb. As you may know the backfiring through the carb or pipes are two of the "tells" on what to/how adjust the idle mixture screw.
Anyway they are cheap enough, get the ones from Dennis Kirk they use to be the least expensive. Mine disappeared when I sent the engine in for HD overhaul.
Seasoned HDF Member
Joined: Nov 2009
Posts: 15,705
Likes: 22,718
From: Farmington ,MS
Dyno tests show they do not work...lollipops on the other hand do work....and they are cheaper
http://harleytechtalk.org/htt/index.php?topic=20876.0
http://www.nightrider.com/biketech/e...m#dyno_results
http://harleytechtalk.org/htt/index.php?topic=20876.0
http://www.nightrider.com/biketech/e...m#dyno_results
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Seasoned HDF Member
Joined: Oct 2007
Posts: 56,052
Likes: 88,322
From: Western South Dakota
You'd be better off getting some quality baffles like from Big City Thunder.
Had em' on my softail and it was like a 2-1.
I kid you not.
Had em' on my softail and it was like a 2-1.
I kid you not.
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Road Master
Joined: Nov 2012
Posts: 794
Likes: 1
From: Alvin TX
I would run the big city baffles way before the cones , had the BCB's in my 03 E Glide wow great power & sound over the cones ,I ran the true dules & gutted 3in stock Mufflers / 3 in straight pipes , a buddy made his muffles like mine & put the cones in what a difference in power & sound , so he ordered the BCB;s
Thread Starter
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Tourer
Joined: Jun 2013
Posts: 272
Likes: 5
From: pomgolia
interesting replies
the theory of anti reversion does sound good and the only person I know who has tried them was very impressed
running a 2 into 1 with a bubs silencer (if you can call it that its very open)
not interested in either sound or noise, just want better mid range power
the theory of anti reversion does sound good and the only person I know who has tried them was very impressed
running a 2 into 1 with a bubs silencer (if you can call it that its very open)
not interested in either sound or noise, just want better mid range power