- Joined
- Jul 13, 2006
- Messages
- 11,345
- Location
- Texas
Jap bikes rule
The 90 degree engine has got to go for that bike to be balanced and get more weight onto the front, for all the doubters
Rossi
If he is out the door at Ducati than he did them a favor for exposing Prezi and that unbalanced bike that has killed gp careers, and Barry I can't help myself, you were wrong about the engine vibrations, the bikes are simply not balanced and they were all doing the same thing.
You .......!! You say its the ninety degree engine ...... agreeing with me then tell me its wrong because of "vibrations". You really need to read u on Vibrating structure gyroscopes, before you have even the slightest idea
It has the word "vibration" in it because thats what causes it ......... the sympton is a resonant tendency to straighten the bike whilst turning. Also I suspect on the laydown version of the L 90 it had a tendency to cause the load on the front to cycle/resonate/vibrate ( though this many manufacturers claim to have balanced??). Tipping the engine back around the centre of grip balance of the bike helped, going narrower V better ........ all the cylinders in line with the centre of grip balance ........ best.
I'll try to explain. The pistons cranks etc. flying up and down are like weights attached to a spinning bike wheel )often used as a great demo of gyroscopic action) ....... attached because the engine block encloses them and is a rigid structure. Just because you don't see an axle acting as the centre of the gyroscope does not mean its not there because of the engine structure. Likely its centre of action is in open space between the cylinder banks.
Imagine if you fixed a motorcyle/big cycle wheel, with its axle transvers to the direction of travel, to a point somewhere between the to cylinder banks ........ and you spin that wheel ......... gyroscope ..... and it causes a force that fights to keep the bike traveling in a longitudinal direction.
Now imagine I span the wheel the opposite direction. The force trying the keep the bike traveling in a longitudinal direction is still there, regardless of the wheels spin direction!
Now imagine I spun it only a quarter turn ........ gyroscopic force is there momentarily
now spin it back one quarter turn ........ there it is again
now repeat that rapidly .......... the gyroscopic force is now a pulsating force .........
get it yet? Thats the best I can do without some demo equip. but anyway ........ read about it.
When you understand VSG's you will see that, but from your posts I can clearly see you haven't even got VSG 101 ......... mostly I suspect because you do no research.READ!
Too cold at Mugello?
http://moto-racing.s...d-red-said//P3/
"Dorna know about all this and have accepted that Valentino will not finish the season, but they trust that he will return next year with a winning project and it is good for them that it is not with Ducati, since they (Ducati) are refusing to accept the RPM limit, something that is going to be applied next season, placing in doubt the future of the Borgo Panigale manufacturer in MotoGP."
If Rossi fails to finish the season he will be for ever remembered as a loser and his legacy will be tainted for sure. How ....... precious of him. He is a quitter. He can't develop a bike and he is no leader. I hope JB and the rest of the crew drops him like a stone.
I seriously hope he can not find another ride. MotoGP will be all the better with out him because at last the stories written will be about the other awesome talent that currently is on the grid and who are the future of the sport.
Dorna are complete muppets in my opinion because they are definitely going to squeeze Yamaha hard and either Smith, Dovi or Crutchlow are going to get screwed along with Hayden, Barnera and Abraham when Ducati become a casualty of Dorna trying to get Rossi at the front.
Yamaha will lose also because if they supply Rossi with a satellite spec M1 then Rossi will ..... and complain about not getting upgrades.
In the end everyone loses.
the only thing this thread highlights is that we need a much better and more apt term than 'Neo Bopper', will be tough to come up with one that doesn't involved profanity based on who we are describing......
What a load of ..... - Quite possibly the worst post i've read on this forum, did the penguin find your log-in details?
What a load of ..... - Quite possibly the worst post i've read on this forum, did the penguin find your log-in details?
If Rossi fails to finish the season he will be for ever remembered as a loser and his legacy will be tainted for sure. How ....... precious of him. He is a quitter. He can't develop a bike and he is no leader. I hope JB and the rest of the crew drops him like a stone.
No, they are infallible because some of them are Australian.Maybe JB and the crew are part of the problem, not the solution. They have so far conspicuously and spectacularly failed to come up with any solutions to his woes.
Maybe JB and the crew are part of the problem, not the solution. They have so far conspicuously and spectacularly failed to come up with any solutions to his woes.
Maybe JB and the crew are part of the problem, not the solution. They have so far conspicuously and spectacularly failed to come up with any solutions to his woes.
Can you imagine the tantrum Lorenzo will throw if the subject of Rossi getting an M1 even comes up?
He'll pull that serious face.....the one he pulled in the press conference with Super Sic.
Lorenzo will be the biggest problem for Rossi wanting a Yamaha.
No, they are infallible because some of them are Australian.