The Spares Company
Club Shop/Regalia
Parent Website
Contact Officials
Machine Registrar
Club Secretary
Membership Secretaries
MPH Editor and Forum Administrator.
Section Newsletters
Technical Databases
Photos
Home
What's new
Latest activity
Forums
New posts
What's new
New posts
Latest activity
Information
Bike Modifications
Machine Data Services
Manufacturers Manuals
Spare Parts Listings
Technical Diagrams
Whitakerpedia (Vincent Wiki)
The Club
MPH Material Archive
Flogger's Corner
Obituaries
VOC Sections
Local Sections
Local Section Newsletters
Miscellaneous
Club Assets
Club History
Club Rules
Machine Data Services
Meeting Documents
Miscellaneous
Essential Reading
Magazine/Newspaper Articles/Letters
Adverts and Sales Brochures
The Mighty Garage Videos
Bikes For Sale (Spares Company)
Log in
Register
What's new
New posts
Menu
Log in
Register
Install the app
Install
Home
Forums
Forums: Public Access
General Chat (Vincent Related)
Dan Smith's Latest Project
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Nigel Spaxman" data-source="post: 145880" data-attributes="member: 2907"><p>What a fantastic achievement. That type of crank always interested me. I have a Honda VT500 Ascot. It is a 50 degree V twin with a forged crankshaft with two throws. I am not sure what the angle is between the pins. Honda had a way of off setting the pins that they said achieved the same perfect primary balance that the 90 degree V twin can achieve. The 90 degree V twins like Ducati and Moto Guzzi are very smooth. They need a 50% balance factor. The Hondas like the VT500 are very smooth as well. I understand the balancing of the 90 degree engines. I have neve quite managed to figure out the balancing on the Hondas. I think it might be possible that if you get the balance factor just right that this engine could be as smooth as a Ducati. I am pretty sure the right balance factor is going to be 50%. With V twins like the Vincent the balancing is always a bit of a compromise, just like with a single or vertical twin. With engine layouts that can't have perfect primary balance, you are always trading horizontal vibrations for vertical ones. I have one very unusual bike, a Triumph with a 0% balance factor. That might seem wrong but that particular bike has a rubber engine mounting system that can only isolate vertical vibrations. This system works pretty well on this bike.</p></blockquote><p></p>
[QUOTE="Nigel Spaxman, post: 145880, member: 2907"] What a fantastic achievement. That type of crank always interested me. I have a Honda VT500 Ascot. It is a 50 degree V twin with a forged crankshaft with two throws. I am not sure what the angle is between the pins. Honda had a way of off setting the pins that they said achieved the same perfect primary balance that the 90 degree V twin can achieve. The 90 degree V twins like Ducati and Moto Guzzi are very smooth. They need a 50% balance factor. The Hondas like the VT500 are very smooth as well. I understand the balancing of the 90 degree engines. I have neve quite managed to figure out the balancing on the Hondas. I think it might be possible that if you get the balance factor just right that this engine could be as smooth as a Ducati. I am pretty sure the right balance factor is going to be 50%. With V twins like the Vincent the balancing is always a bit of a compromise, just like with a single or vertical twin. With engine layouts that can't have perfect primary balance, you are always trading horizontal vibrations for vertical ones. I have one very unusual bike, a Triumph with a 0% balance factor. That might seem wrong but that particular bike has a rubber engine mounting system that can only isolate vertical vibrations. This system works pretty well on this bike. [/QUOTE]
Insert quotes…
Verification
The Series 'A' Rapide was known as the '********' Nightmare?
Post reply
Home
Forums
Forums: Public Access
General Chat (Vincent Related)
Dan Smith's Latest Project
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more…
Top