Drag Pipes, Baffles and FP3.....
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1st Gear
Joined: Jun 2019
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From: Maidstone
Drag Pipes, Baffles and FP3.....
Evening all,
Ive been searching around and not found too much information on this.
Drag pipes, look great but very loud (too loud for some) and drop in performance. Has anyone had experience doing this - LAF drag pipes, with torque cones at the header end, and standard baffles fitted near the exhaust exits.... with an FP3 tuner......
anyones thoughts?
Thanks
Goldie
Ive been searching around and not found too much information on this.
Drag pipes, look great but very loud (too loud for some) and drop in performance. Has anyone had experience doing this - LAF drag pipes, with torque cones at the header end, and standard baffles fitted near the exhaust exits.... with an FP3 tuner......
anyones thoughts?
Thanks
Goldie
Seasoned HDF Member
Joined: Nov 2018
Posts: 10,833
Likes: 6,485
From: Canada Flats
I put in a set of crusher mellow baffles in a set of cvo mufflers , after that I gave V&H a call and explained to them how I modified them to fit . They recommended me the perfect map for my set up and to do an auto tune after that . Bike runs better than awesome now .
Since your using an FP3 I would work with V&H in getting it set up just right . Calling them would be better than an email . Brian from V&H may chime in and give his thoughts also .
Bet your set up sounds wicked !!
Since your using an FP3 I would work with V&H in getting it set up just right . Calling them would be better than an email . Brian from V&H may chime in and give his thoughts also .
Bet your set up sounds wicked !!
Thread Starter
|
1st Gear
Joined: Jun 2019
Posts: 5
Likes: 1
From: Maidstone
I put in a set of crusher mellow baffles in a set of cvo mufflers , after that I gave V&H a call and explained to them how I modified them to fit . They recommended me the perfect map for my set up and to do an auto tune after that . Bike runs better than awesome now .
Since your using an FP3 I would work with V&H in getting it set up just right . Calling them would be better than an email . Brian from V&H may chime in and give his thoughts also .
Bet your set up sounds wicked !!
Since your using an FP3 I would work with V&H in getting it set up just right . Calling them would be better than an email . Brian from V&H may chime in and give his thoughts also .
Bet your set up sounds wicked !!
Stellar HDF Member
Joined: Apr 2012
Posts: 3,117
Likes: 1,193
From: Maryland
Drag pipes... Hacks... Ugghh...
How to best deal with drag pipes... See the 4:35/10:42 mark in the following video...
To understand why... watch the rest of the video... Also... maybe peruse these quick reads...
http://www.zggtr.org/index.php?topic=960.0
http://www.epi-eng.com/piston_engine...technology.htm
https://www.hdforums.com/forum/sport...l#post17075742
In those links you'll also find material that speaks to the "back pressure" myth.
After reading all that... You might come to the conclusion that proper exhaust systems are not just some pipes bent to look and sound good. There is a reason that the word "system" is used in the term Exhaust System and that system is part of a larger system. Properly designed and executed - that system can produce "JOY". Poorly (likely ignorantly) executed it can produce "****". Sure you can probably mitigate the **** to some degree tweaking/tuning, but just guessing... the likely outcome is just a lesser degree of ****.
I haven't seen any tuning attempts/dyno results on those LAF drag pipes... But just based on appearances, my first instinct would be to refer again to the 4:35/10:42 mark in the above video.
How to best deal with drag pipes... See the 4:35/10:42 mark in the following video...
To understand why... watch the rest of the video... Also... maybe peruse these quick reads...
http://www.zggtr.org/index.php?topic=960.0
http://www.epi-eng.com/piston_engine...technology.htm
https://www.hdforums.com/forum/sport...l#post17075742
In those links you'll also find material that speaks to the "back pressure" myth.
After reading all that... You might come to the conclusion that proper exhaust systems are not just some pipes bent to look and sound good. There is a reason that the word "system" is used in the term Exhaust System and that system is part of a larger system. Properly designed and executed - that system can produce "JOY". Poorly (likely ignorantly) executed it can produce "****". Sure you can probably mitigate the **** to some degree tweaking/tuning, but just guessing... the likely outcome is just a lesser degree of ****.
I haven't seen any tuning attempts/dyno results on those LAF drag pipes... But just based on appearances, my first instinct would be to refer again to the 4:35/10:42 mark in the above video.
Last edited by T^2; Jun 19, 2019 at 08:08 AM.
Thread Starter
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1st Gear
Joined: Jun 2019
Posts: 5
Likes: 1
From: Maidstone
Cheers.... I think 
I think its the mitigating **** bits that im interested in. Im not looking for cuting edge perfomance, I sold a gsxr to buy my harley.........
but anything that i can do to assist is what im going for without causing any longer term damage
I think its the mitigating **** bits that im interested in. Im not looking for cuting edge perfomance, I sold a gsxr to buy my harley.........
but anything that i can do to assist is what im going for without causing any longer term damage
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Joined: Jan 2016
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From: West Virginia
I ran the LAF's for a couple years and changing them now because they drag after i lowered the bike, otherwise I was happy with them. I tuned it with a powervision and lollipops in the pipes. When i first put them on the bike it was a noticeable performance upgrade from the SEII slip-ons and stage 1 HD tune. They are not too noisy at an idle and low rpm cruising but can be very loud when you want to be.
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