Search found 591 matches

by wayneschofield
Sat May 19, 2007 6:28 pm
Forum: R&D
Topic: Top end sugestion, valve springs and rpms
Replies: 68
Views: 5017

You're a very brave man I feel, a true 'pioneer'...<br /><br />For what it's going to cost, why not run the head up on a 'spintron', so you can see if you're getting any float before you fit it in your motor? Float on a valve on it's own isn't going to cause any p...
by wayneschofield
Sat May 19, 2007 6:04 pm
Forum: R&D
Topic: Anyone (else) fancy putting neutral below first?
Replies: 2
Views: 183

Having got bored of not being able to find neutral, unless I really don't want to find it, my not-so-stupid girlie friend suggested I move it to below first so it's out the way....<br /><br />She's a biker herself and rode motorcross since being a kid (she has an MV Agusta 750 these days...
by wayneschofield
Mon Feb 12, 2007 4:56 pm
Forum: R&D
Topic: Spin the Throttlebody on the Cannondale
Replies: 16
Views: 1015

Running a different mix in each port is called 'Stratified charge'. It's normally only used on 'bias-ported' engines to concentrate a richer mix around the plug to help it fire, then the mix gets ever leaner as the flame front travles out from the plug. It's an emissions thin...
by wayneschofield
Thu Feb 01, 2007 7:44 pm
Forum: R&D
Topic: Cams, followers, wrist pins. Engine men please read...
Replies: 42
Views: 2349

I'll try to dig up some old development graphs and stuff, if I can find it, it might make things easier to understand.<br /><br />What I 'think' as I 'write' and what you 'read' from my 'writings' could very well be different. Minor terminology differences can cau...
by wayneschofield
Tue Jan 30, 2007 5:48 pm
Forum: R&D
Topic: New Style Engine Case
Replies: 19
Views: 835

The smooth, shiny, casting you see is a 'die-casting'. It costs a heap of money to make a 'die' to make the part so, instead, a 'pattern' is made (a slightly oversize blank version of the component needed) and, from this, a sand 'mould' is made. Into this mould is pou...
by wayneschofield
Sun Jan 28, 2007 4:15 am
Forum: R&D
Topic: Cams, followers, wrist pins. Engine men please read...
Replies: 42
Views: 2349

A cam with higher off the seat valve acceleration and more of a radius to the flanks could have the same lift and off the seat duration but have much more area under the lift envelope than one with lower initial acceleration and flatter lobe flanks.<br /><br />This is why you often see durations lis...
by wayneschofield
Sun Jan 28, 2007 4:05 am
Forum: R&D
Topic: Cam lobe separation?
Replies: 8
Views: 420

Dunno on the 'dale but I'd be tempted to run exhaust at 102-104 and the inlet at 110-112. I tend to find you'll lose through the middle and gain at the top, if top's what you're looking for anyways...
by wayneschofield
Fri Jan 26, 2007 7:17 pm
Forum: R&D
Topic: Cams, followers, wrist pins. Engine men please read...
Replies: 42
Views: 2349

Multiple drillings as normal for vernier adjustment, absolutely chaps.
by wayneschofield
Fri Jan 26, 2007 7:00 pm
Forum: R&D
Topic: Casidium coated pins...?
Replies: 11
Views: 1013

I could do to chat sometime about the ATK thing, sound out some ideas, see what you guys think.

I agree, not for ths post.... Not for public view either I don't think...
by wayneschofield
Fri Jan 26, 2007 6:04 pm
Forum: R&D
Topic: Cams, followers, wrist pins. Engine men please read...
Replies: 42
Views: 2349

Mine looks worse to than my wife did!<br /><br />Mind you, she did cost less money..... <img src="http://www.cannondaleriders.com/forums/style_emoticons/<#EMO_DIR#>/biggrin.gif" style="vertical-align:middle" emoid=":D" border="0" alt="biggrin.gif" /><br /><br />A little tech-spec of the new cams...