Exhaust decel sound
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Club Member
Joined: Dec 2014
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From: SWFL
Exhaust decel sound
My Road Glide Special has a FuelMoto E series 2:1, like my LRS. On the Road Glide, when I let off throttle, either while shifting, or just decel, it makes a probably 2x louder rumble that it does on throttle, except maybe on hard accel. It's a sweet sound that I love. No pop at all, just this great, loud rumble on decel off throttle. You know the sound, think when a big rig lets off throttle in gear.
Like I said, I have the same pipe on my LRS, which also has no pop, but it also doesn't have that great rumble on decel.
I'm going to try and get a sound clip of both as it's kind of hard to describe, but I'm wondering why the 103 on the RGS is louder on decel then the 110 LRS.
I'm tempted to mess with the tune to see if I can recreate it, but the LRS is running so damn good I don't want to screw anything up, so I want to be careful.
Any ideas?
Like I said, I have the same pipe on my LRS, which also has no pop, but it also doesn't have that great rumble on decel.
I'm going to try and get a sound clip of both as it's kind of hard to describe, but I'm wondering why the 103 on the RGS is louder on decel then the 110 LRS.
I'm tempted to mess with the tune to see if I can recreate it, but the LRS is running so damn good I don't want to screw anything up, so I want to be careful.
Any ideas?
Road Master
Joined: Sep 2007
Posts: 1,174
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From: Northern CA
I recently bought an 07 FXD w/ V&H slip-ons and bought a PV with a canned map from fuelMoto. Also put an S&S super air box on. Yesterday I went through the auto tune procedure. I had the decel pop with the canned map and also with auto tune. I wanted it gone so I advanced the fuel on decel up 5% and increased spark up 3%. Pop is gone on decel now. You go into quick tune and set it in there-pretty self explanatory once your in there. Maybe you can retard fuel and spark just a bit on decel-you could always put it back. My bike is just a stock 96 so it's just an idea you could try. It wasn't a violent backfire just a popping when letting off throttle.
Thread Starter
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Club Member
Joined: Dec 2014
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From: SWFL
I recently bought an 07 FXD w/ V&H slip-ons and bought a PV with a canned map from fuelMoto. Also put an S&S super air box on. Yesterday I went through the auto tune procedure. I had the decel pop with the canned map and also with auto tune. I wanted it gone so I advanced the fuel on decel up 5% and increased spark up 3%. Pop is gone on decel now. You go into quick tune and set it in there-pretty self explanatory once your in there. Maybe you can retard fuel and spark just a bit on decel-you could always put it back. My bike is just a stock 96 so it's just an idea you could try. It wasn't a violent backfire just a popping when letting off throttle.
Road Warrior
Joined: Aug 2015
Posts: 1,712
Likes: 410
From: Puyallup, WA
Could be timing, cams, exhaust, or your map. I have a V&H Legacy FuelPak. You can adjust the fuel to cut off on decel and turn back on just before hitting idle. Before the fuel comes back on, the motor is acting like a big air pump, sounds good. Maybe what you're experiencing.
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Tourer
Joined: Sep 2014
Posts: 443
Likes: 87
From: Australia
engine braking is a factor of torque isn't it? More torque more engine braking more or less.
My LRS with bassani road rage 3 sounds like a truck on the engine brake going down mt everest lol.
My LRS with bassani road rage 3 sounds like a truck on the engine brake going down mt everest lol.
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Club Member
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From: SWFL
That's my point. I'd think the 110 would make more sound then the 103. I've got a few hours before the rain arrives this afternoon so I'll try and get audio of both.
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Joined: Sep 2008
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From: Northwest
