.....You prolly ought'a go "sit on the throne" fer awhile,dude......the **** yer full of is eventually gonna run out yer ears.....already come'n out yer mouth...........
Dyna vs Softail
Outstanding HDF Member
Joined: Jun 2007
Posts: 2,687
Likes: 6
From: Kalaui Kona HI
"Rubber glides have a "jerkiness" at steady speeds as the motor flexing in the frame translates to a jerky feel when at steady cruise."
Interesting I have never felt anything like that mine is steady at cruising speeds only when I hit the throttle to pass on the highway and then it snaps my head back.
Interesting I have never felt anything like that mine is steady at cruising speeds only when I hit the throttle to pass on the highway and then it snaps my head back.
Outstanding HDF Member
Joined: Apr 2010
Posts: 2,477
Likes: 14
From: Western MD
Cruiser
Joined: Jul 2007
Posts: 136
Likes: 24
From: Florida Panhandle
"such a small insignificant amount that no rider could notice it just by riding".
True it's not a big difference. Harley's own published specs prior to the 2010 models showed a torque difference of only 5ft lbs between softail and dyna models. To me what made it noticable was that the B motor revs a lot slower then the A motor making the B motor feel a bit lazy in comparison. It's just a simple fact that it takes longer to accellerate that extra 13lbs of mass in the B. For me that's an aceptable trade off. I didn't buy my softail to drag race.
True it's not a big difference. Harley's own published specs prior to the 2010 models showed a torque difference of only 5ft lbs between softail and dyna models. To me what made it noticable was that the B motor revs a lot slower then the A motor making the B motor feel a bit lazy in comparison. It's just a simple fact that it takes longer to accellerate that extra 13lbs of mass in the B. For me that's an aceptable trade off. I didn't buy my softail to drag race.
Road Master
Joined: Feb 2010
Posts: 1,210
Likes: 1
From: LI, NY
Banned
Joined: Sep 2009
Posts: 7,580
Likes: 7
From: The Internet (& Dyer, Indiana)
"such a small insignificant amount that no rider could notice it just by riding".
True it's not a big difference. Harley's own published specs prior to the 2010 models showed a torque difference of only 5ft lbs between softail and dyna models. To me what made it noticable was that the B motor revs a lot slower then the A motor making the B motor feel a bit lazy in comparison. It's just a simple fact that it takes longer to accellerate that extra 13lbs of mass in the B. For me that's an aceptable trade off. I didn't buy my softail to drag race.
True it's not a big difference. Harley's own published specs prior to the 2010 models showed a torque difference of only 5ft lbs between softail and dyna models. To me what made it noticable was that the B motor revs a lot slower then the A motor making the B motor feel a bit lazy in comparison. It's just a simple fact that it takes longer to accellerate that extra 13lbs of mass in the B. For me that's an aceptable trade off. I didn't buy my softail to drag race.
There is no way in hell that the balancers are causing that 5lb difference.
I've got a mild cam in my "B" motor (103") and at 104/114 it does not feel the slightest bit "lazy". It does not "rev slower".
The same build on an "A" motor would yeild similar numbers.
Balancers are a moot point unless you are racing for 1/4 mile numbers and every 100th of a second counts.
If yours feels lazy, it needs some upgrades, or a tune.
Road Master
Joined: Feb 2010
Posts: 1,210
Likes: 1
From: LI, NY
The HD specs you speak of are on stock muffled and smothered motors.
There is no way in hell that the balancers are causing that 5lb difference.
I've got a mild cam in my "B" motor (103") and at 104/114 it does not feel the slightest bit "lazy". It does not "rev slower".
The same build on an "A" motor would yeild similar numbers.
Balancers are a moot point unless you are racing for 1/4 mile numbers and every 100th of a second counts.
If yours feels lazy, it needs some upgrades, or a tune.
There is no way in hell that the balancers are causing that 5lb difference.
I've got a mild cam in my "B" motor (103") and at 104/114 it does not feel the slightest bit "lazy". It does not "rev slower".
The same build on an "A" motor would yeild similar numbers.
Balancers are a moot point unless you are racing for 1/4 mile numbers and every 100th of a second counts.
If yours feels lazy, it needs some upgrades, or a tune.
I've been joking a lot on this thread, but have to call you out on comparing apples to oranges.
You mod your engine then claim it's not slow now.
DUH!
Then you say their is only 5lbs difference then you claim an A motor would put out similar if moded the same.
Well if the A was ahead, then got the same mods and same increase it then would be still ahead.
Then you claim it's the stock mufflers and intake that's causing the B to have less power.
DUH!
The A motors have the stock mufflers and intake too. The only difference is the counter balance. The only difference has to be causing the loss off performance.
Banned
Joined: Sep 2009
Posts: 7,580
Likes: 7
From: The Internet (& Dyer, Indiana)
Man, you throw insults at everybody.
I never said there was a 5lb difference,..... I'm sayin' there is almost zero difference.
You would think,....... but no!
I've seen enough dyno sheets from built motors.
The A's always run neck n neck with the B's on similar builds.
You know not what you speak of.
And let me set you straight right now,..... I have seen you baiting the others with your insults, and I have no intention of falling prey to your ignorant remarks.
Move your hook and bait to another thread.
I never said there was a 5lb difference,..... I'm sayin' there is almost zero difference.
Well if the A was ahead, then got the same mods and same increase it then would be still ahead.
I've seen enough dyno sheets from built motors.
The A's always run neck n neck with the B's on similar builds.
You know not what you speak of.
And let me set you straight right now,..... I have seen you baiting the others with your insults, and I have no intention of falling prey to your ignorant remarks.
Move your hook and bait to another thread.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Outstanding HDF Member
Joined: Apr 2010
Posts: 2,477
Likes: 14
From: Western MD
i don't know squat about the differences in bike designs, but engines i do know. if you add rotating weight to any engine it will definitely hurt response/rpm windup time and HP to a certain degree. BUT the added weight will also help in maintaining the inertia force in the rotating mass..
one look at race flywheels for cars will explain the difference.
one look at race flywheels for cars will explain the difference.
Banned
Joined: Sep 2009
Posts: 7,580
Likes: 7
From: The Internet (& Dyer, Indiana)
.....it will definitely hurt response/rpm windup time and HP to a certain degree. BUT the added weight will also help in maintaining the inertia force in the rotating mass..
I stand by my theory that any loss in power is so miniscule that it can not be noticed without some elaborate measuring device. I do not think a Dyno would even show it.
Originally Posted by crush63 
"such a small insignificant amount that no rider could notice it just by riding".
True it's not a big difference. Harley's own published specs prior to the 2010 models showed a torque difference of only 5ft lbs between softail and dyna models. To me what made it noticable was that the B motor revs a lot slower then the A motor making the B motor feel a bit lazy in comparison. It's just a simple fact that it takes longer to accellerate that extra 13lbs of mass in the B. For me that's an aceptable trade off. I didn't buy my softail to drag race.
"such a small insignificant amount that no rider could notice it just by riding".
True it's not a big difference. Harley's own published specs prior to the 2010 models showed a torque difference of only 5ft lbs between softail and dyna models. To me what made it noticable was that the B motor revs a lot slower then the A motor making the B motor feel a bit lazy in comparison. It's just a simple fact that it takes longer to accellerate that extra 13lbs of mass in the B. For me that's an aceptable trade off. I didn't buy my softail to drag race.
.
Last edited by Faast Ed; Sep 12, 2010 at 09:41 AM.