There really is Nothing New out there, is there
Interesting that a major benefit claimed was reducing the work required to open the exhaust valve.... Must be opening the valve at or after BDC??
I've also seen that claimed to be a significant power drain in exhaust valved Uniflow two-strokes.
Cheers, Daryl.
Would have he been one of the early people to use shaft drive instead of a chain or belt?
Neil
The primary benefit of the auxilliary barrel exhausts was probably exhaust valve life. Steels around that time were not that good - the silchrome valve came not many years later. Anything which would reduce valve temperature would have helped.
Daryl - a guy I know locally has an early Edmunds/VW which is finished to show condition and gets carefully exercised once a year...Sadly the Kurtis Offy which was also local - and ex Foyt....Has been sold overseas.
I think Husa may have been referring to the previous thread he started on vintage racers (forget what it's called).
And ....... in answer to your earlier statement :- There really is Nothing New out there, is there
"What has been will be again,
what has been done will be done again;
there is nothing new under the sun."
(a biblical quote I think)
Wot? even the Ryger?
Amen.
Strokers Galore!
I can't be arsed looking but when i trip over the mag i will post it.
From memory it was made out of a Douglas Dragonfly frame an a "MV like" engine made out of Triumph terrier and Tigercub heads and valves modified to DOHC with rockers then remodified to direct tappets out of a Austin maxi by the next owner. it was 19598 so it was home made state of the art really. it also had an albion gearbox.
Pretty sure Dennis Jones was a "retired" toolmaker
here is a pic
here is the 250 single
http://www.vintagebike.co.uk/wp-cont...cc-710x570.jpg
I seem to remember Jones worked for Rolls Royce when he was building his specials, but your probably right.
Stupidly, I flogged all my Classic mags about 25 years ago. I'm glad somebody's kept theirs. I still have a bunch of Motorcycle Mechanics from the sixties and seventies, which make for entertaining reading. If I ever get round to getting a scanner I'll try posting them on here.
Nothing as late as 84. I think the most recent is 74 or 75.
I think I remember that 4 cylinder special with the Triumph Terrier heads and the heading for the article was "Redundancy Four" - I thought it was sometime in the seventies, but I have also flogged off all my old motorcycle mags.
The guy who built it had been made redundant and had done it as cheaply as possible (did a great job!) - I think it was in "Motorcycle" mag.
Strokers Galore!
Dennis Jones article
Another one (with some antipodean pages!)
And another
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