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
Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Lightning Cams
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="Tom Gaynor" data-source="post: 3797" data-attributes="member: 4034"><p><strong>Cams</strong></p><p></p><p>In my experience, race cams and a low compression ratio make for an engine that pulls like a train: an excellent low speed performance and adequate high speed performance. I've done it several times, as have others. The fundamental recipe is the most radical cam obtainable, and a relatively low cr.</p><p>Unfortunately Vincent cams are "all pointy", instead of having a proper rectangular Manx Norton profile (like a house-brick: slam the valves open, keep them open as long as possible, slam them shut).</p><p>In the list of "things a boy can make or do" is to get Gary Robinson to grind me a set of cams with Rudge Replica profiles on Vincent wheels. Given that a 500 cc Ulster (6.9:1) so equipped will do 100 mph, "obviously" a Vincent twin would do 200 mph, which might, just, ease me ahead of Russell...... Bonneville beckons.......</p></blockquote><p></p>
[QUOTE="Tom Gaynor, post: 3797, member: 4034"] [b]Cams[/b] In my experience, race cams and a low compression ratio make for an engine that pulls like a train: an excellent low speed performance and adequate high speed performance. I've done it several times, as have others. The fundamental recipe is the most radical cam obtainable, and a relatively low cr. Unfortunately Vincent cams are "all pointy", instead of having a proper rectangular Manx Norton profile (like a house-brick: slam the valves open, keep them open as long as possible, slam them shut). In the list of "things a boy can make or do" is to get Gary Robinson to grind me a set of cams with Rudge Replica profiles on Vincent wheels. Given that a 500 cc Ulster (6.9:1) so equipped will do 100 mph, "obviously" a Vincent twin would do 200 mph, which might, just, ease me ahead of Russell...... Bonneville beckons....... [/QUOTE]
Insert quotes…
Verification
What was Mr Vincent's Christian Name?
Post reply
Home
Forums
Forums: Public Access
Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Lightning Cams
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