Duals vs. Stock How much difference??
Thread Starter
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Intermediate
Joined: Apr 2007
Posts: 39
Likes: 0
From: North Central MA
Duals vs. Stock How much difference??
Ok...I've seen lots of posts about stock vs. true duals, but have noticed the following:
True duals give you a more balanced sounding exhaust system.
True duals generate less heat on the right side of the bike.
True duals look better than the stock pipes.
...and probably a host of other positives.
Now, I keep hearing that the true duals may or may not give you a loss of tourque. Some people say it's not noticeable, but other say it is. If there *is* a loss of tourque, how much are we talking about? If it's minimal, then I can live with that to a point. If I lose 5 ft/lbs of tourque on a 10 ft/lb upgrade, isit really worth the 50% loss going with the duals?
Does anyone have some information regarding the approximate gain/loss of tourque/HP when going from stock to true dual setup?
I absolutely love my V&H ovals on the stock pipes right now. Debating whether to go true duals now or not...[sm=teetertooter.gif]
Cheers!
Bob
True duals give you a more balanced sounding exhaust system.
True duals generate less heat on the right side of the bike.
True duals look better than the stock pipes.
...and probably a host of other positives.
Now, I keep hearing that the true duals may or may not give you a loss of tourque. Some people say it's not noticeable, but other say it is. If there *is* a loss of tourque, how much are we talking about? If it's minimal, then I can live with that to a point. If I lose 5 ft/lbs of tourque on a 10 ft/lb upgrade, isit really worth the 50% loss going with the duals?
Does anyone have some information regarding the approximate gain/loss of tourque/HP when going from stock to true dual setup?
I absolutely love my V&H ovals on the stock pipes right now. Debating whether to go true duals now or not...[sm=teetertooter.gif]
Cheers!
Bob
Outstanding HDF Member
Joined: Oct 2006
Posts: 2,253
Likes: 1
From: Southeastern Michigan
RE: Duals vs. Stock How much difference??
I got my true duals because of the sound, and looks. I will be doing more to the engine in the future, but am not concerned with getting every ounce of torque from the pipes. (I don't think that there is a big loss of torque, just a potenial loss compared to the 2 into 1) I like the balanced look & sound of the true duals and thats whats most important to me.
Rob
Rob
Cruiser
Joined: Apr 2007
Posts: 183
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RE: Duals vs. Stock How much difference??
ORIGINAL: Bagger07
True duals give you a more balanced sounding exhaust system.
True duals give you a more balanced sounding exhaust system.
Thread Starter
|
Intermediate
Joined: Apr 2007
Posts: 39
Likes: 0
From: North Central MA
RE: Duals vs. Stock How much difference??
ORIGINAL: dpa
Is this true? I would think that a cross over would give you a more balanced sound, not a better sound but a more balanced sound.
ORIGINAL: Bagger07
True duals give you a more balanced sounding exhaust system.
True duals give you a more balanced sounding exhaust system.
Regards,
Bob
Outstanding HDF Member
Joined: Oct 2006
Posts: 2,253
Likes: 1
From: Southeastern Michigan
RE: Duals vs. Stock How much difference??
Balanced, as in the sound comes from both sides of the bike. Yes, you can tell. I gives the bike a more "traditional" Harley sound. IMHO
Road Captain
Joined: Jan 2006
Posts: 655
Likes: 0
From: South Jersey
RE: Duals vs. Stock How much difference??
There are alot of threads on the true duals. I had a set of V&H on an 01 RK. I did not see any difference in the heat issue. Felt the same to me. I had S/E slip ons and actually preferred the sound before the true duals. Didn't notice any loss/gain in HP/Torque. To each his own. I would spend the $ on a sure bet increase in performance before I did the true duals again.
Cruiser
Joined: Apr 2007
Posts: 226
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From:
RE: Duals vs. Stock How much difference??
Just got my TD's, Big sucker and PCIII. Runs cooler, faster and sounds great. I love it.
[IMG]local://upfiles/29186/D37126C3BFEA432291D3AB00569D1D27.jpg[/IMG]
[IMG]local://upfiles/29186/D37126C3BFEA432291D3AB00569D1D27.jpg[/IMG]
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Intermediate
Joined: Mar 2007
Posts: 35
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RE: Duals vs. Stock How much difference??
Unless you have a major power the stock headers can produce more power on the mid to lower rpm range but you must run a good muffler. Try Khrome Werks slipon's, you can buy the mufflers with the right baffles for most any power level and they look stock. Stock headers are good up to around 100 hp. Most of the after market pipes make better hp but look at the rpm range that you ride in.. If you build your ride with time, you can change to a good header like bassani 2 into2 header. and up grade the baffles .. A 124 s&s will run through these mufflers
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Elite HDF Member
Joined: Mar 2006
Posts: 4,722
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From: Biddeford, Maine
RE: Duals vs. Stock How much difference??
ORIGINAL: dpa
Is this true? I would think that a cross over would give you a more balanced sound, not a better sound but a more balanced sound.
ORIGINAL: Bagger07
True duals give you a more balanced sounding exhaust system.
True duals give you a more balanced sounding exhaust system.
True duals will give you the balanced "stereo" exhaust note out the back, but at the expense of some low end torque loss.
There is a great post over on vtwin forum showing the difference between a 2-2 system and a 2-1 system. Both have the same peak numbers, but the 2-1 has way more area under the curves for a much better performing bike.
Steve
Road Warrior
Joined: Mar 2005
Posts: 1,379
Likes: 2
From: Central, NY
RE: Duals vs. Stock How much difference??
Here are my dyno sheets before and after duals. Same slip-ons.
https://www.hdforums.com/m_1495826/m...tm.htm#1495826
My suggestion? Go for it.
https://www.hdforums.com/m_1495826/m...tm.htm#1495826
My suggestion? Go for it.