Does a 96tc engine shake as much as a 103 at idle? I rode a 103 lowrider for a day and although I love the engine in a touring chassis, on a dyna it shook my teeth out at idle. I just came across a good deal on a 09 street bob and before I spend a day driving halfway across the state I figured I'd see what the internet has to say about it. Also, I'm recovering from a broken wrist that now has a metal plate and enough screws to open my own hardware store, so the amount of shake makes a big difference to me. What do y'all think?

 

The Twin Cam 103 IS a Twin Cam 96 WITH A FACTORY OVER BORE to increase displacement.

 

It`s the chassis not the engine that is causing the difference

 

My 2008 Shaked pretty good at idle. Sitting at a light holding the front brake was the worst. Luckily once up to speed it didn't shake at all. If anything the 96 may shake worse than the 103 or just as bad.

 

My 96 is a little chunka chunka at idle. Other than that. Smoooth

 

True but does more displacement at some cause vibration at some point? Again as said different chasis. The dyna while not the same is rubber mounted. I have never rode one, so I don't know the difference. A touring bike shakes a like a junkie at idle.

 

I know, they have the same stroke but the 103 has a wider bore and a couple goodies like factory compression releases and upgraded compensator. The 103 also has a higher compression ratio I think 9.6 vs 9.2 for the 96, CR can affect the amount of shake at idle. The touring chassis has a lot more mass that absorbs the energy of each pulse of a piston firing thats why I felt it less.

Ah $hit if a 96" dyna shakes worse than a 103" this probably aint gonna work for me, but so far we have 1 little chunka chunka and 2 votes for pretty bad. I also have an evo dyna and the amount of shake is perfect, just enough to give the engine an endearing character, not so much it causes a concussion. Appreciate the insight so far guys, would like to hear from more ppl too

 

Not too much shaking

 

There is of course the possibility that the Dyna you tried was not in perfect shape, the engine rubber mounts could be broken or loose for instance, making it shake more than normal.
Before writing iit off maybe you could try another bike?

I really can't see any reason why a Twin Cam Dyna would shake more than an Evo. The TC has shorter stroke and the frame on a 96" Dyna is a bit more sturdy. Also the efi will spin it at a bit higher rpm:s at idle compared to a carbed Evo. If anything I would expect a TC equipped bike to shake less.

But I could of course be wrong, wouldn't be the first time

 

It can be different from bike to bike with all things being equal. Have ridden like bikes, same year and model and one shook worse than the other more than once. Some just shake more.