Why not make Dyna motors counterbalanced ?
#3
08-30-2006 | 11:36 PM
Ultimate HDF Member
Joined: Feb 2006
Posts: 5,939
Likes: 3
From: TX
RE: Why not make Dyna motors counterbalanced ?
Because the Dynas are the strongest running "traditional" HD's left (non-V-Rod). Throw the balancer assy on it & slow it down...???... No!
Besides, if they did that, then they's wanna take the rubber mount away & there would be a whole new line of high-frequency hand/foot numbing machines.
[8D]
Besides, if they did that, then they's wanna take the rubber mount away & there would be a whole new line of high-frequency hand/foot numbing machines.
[8D]
#4
08-30-2006 | 11:40 PM
Outstanding HDF Member
Joined: Oct 2005
Posts: 2,035
Likes: 5
From: near Buffalo, NY
RE: Why not make Dyna motors counterbalanced ?
Through the balancer assy on it & slow it down...???... No!
Not much of a performance difference at all.
I like the counterweights..
#7
08-31-2006 | 12:11 AM
Cruiser
Joined: Dec 2005
Posts: 154
Likes: 0
From: Kansas City Mo. Area
RE: Why not make Dyna motors counterbalanced ?
Man philm you have not looked at any of the spec sheet on the B motors, Harley says they both have 85 ft Lbs @ 3000 rpm. Doesn't list HP. I would bet the B motors are with in a pound of each other. I would bet a cold pitcher of your choice you could not tell the difference in performance. I here all the time about the mystery foot vibes at 70 so I figure you have to be 70 yrs old to feel them. I would also say there are a lot of B motors out there that would run with you all day if you want. My bis *** needs to strech with the gage hits E. So what your saying is the balanced motor that takes out 90% of the vibration at some mystery speed puts it all back in that is imposible. So if the B motor is vibtating at 70 so is the non-B motor at 70. I have ran my B motor all speeds up to 85 above that and I'm not comfy. that would be a hell of a ticket in my state. I wish they were options on all models. My .02 worth love the B motors. Tom
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#8
08-31-2006 | 12:18 AM
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Stellar HDF Member
Joined: Aug 2006
Posts: 3,045
Likes: 125
From: Between Chicago & Milwaukee
RE: Why not make Dyna motors counterbalanced ?
ORIGINAL: midwesttom
Man philm you have not looked at any of the spec sheet on the B motors, Harley says they both have 85 ft Lbs @ 3000 rpm. Doesn't list HP. I would bet the B motors are with in a pound of each other. I would bet a cold pitcher of your choice you could not tell the difference in performance. I here all the time about the mystery foot vibes at 70 so I figure you have to be 70 yrs old to feel them. I would also say there are a lot of B motors out there that would run with you all day if you want. My bis *** needs to strech with the gage hits E. So what your saying is the balanced motor that takes out 90% of the vibration at some mystery speed puts it all back in that is imposible. So if the B motor is vibtating at 70 so is the non-B motor at 70. I have ran my B motor all speeds up to 85 above that and I'm not comfy. that would be a hell of a ticket in my state. I wish they were options on all models. My .02 worth love the B motors. Tom
Man philm you have not looked at any of the spec sheet on the B motors, Harley says they both have 85 ft Lbs @ 3000 rpm. Doesn't list HP. I would bet the B motors are with in a pound of each other. I would bet a cold pitcher of your choice you could not tell the difference in performance. I here all the time about the mystery foot vibes at 70 so I figure you have to be 70 yrs old to feel them. I would also say there are a lot of B motors out there that would run with you all day if you want. My bis *** needs to strech with the gage hits E. So what your saying is the balanced motor that takes out 90% of the vibration at some mystery speed puts it all back in that is imposible. So if the B motor is vibtating at 70 so is the non-B motor at 70. I have ran my B motor all speeds up to 85 above that and I'm not comfy. that would be a hell of a ticket in my state. I wish they were options on all models. My .02 worth love the B motors. Tom
The Heritage has its strengths and its weaknesses -- mostly strengths in my opinion. A very comfortable bike for round-town cruising or long-distance touring.
Weaknesses: The Twin Cam 88B motor is a counter-balanced version of the TC88 rubber-mounted version used on the touring models. The Counterbalancers do a great job of isolating vibration at "around town" speed. However, at 70+ miles per hour, the counterbalanced motor begins to act as though you have taken it beyond its comfort zone. At 70 mph the motor spins at 3000 rpms (same as the TC88 motor), but it feels and sounds more intrusive to the rider. This is the only weakness.
Strengths: All-around great bike....The counterbalanced motor is more of a strength than a weakness. It is super-smooth at any speed less than 3000 rpms.
http://motorcycles.about.com/library...evbikes205.htm
#9
08-31-2006 | 12:52 AM
Road Master
Joined: Jan 2006
Posts: 899
Likes: 0
From: South Carolina
RE: Why not make Dyna motors counterbalanced ?
I think it's simply a way for H-D to make sure they have all of their bases covered. If they put TC88B motors in everything, they'd loose one of the thinks that make a Harley a "Harley" in some folks minds...they shake like a "Harley"! 
#10
08-31-2006 | 12:59 AM
Big Kahuna HDF Member
Joined: Feb 2006
Posts: 23,881
Likes: 32
From: USA
RE: Why not make Dyna motors counterbalanced ?
Harley could easily engineer almost 100% of the noise and vibration out of their motorcycles.......but then we wouldn't want them anymore because they would be like Honda's. This is true. Why they made a TC88B is beyond me other than they fit the engine to that specific frame versus adding external dampers. But, I have a customer who makes the fuel injection systen & electronics for HD and the engineers from Germany (the supplier) were baffled when the MoCo engineers told them to design it so it goes "potato,potato,potato". So the vibration in our bikes is actually left in there on purpose.