2 stroke racing history

Wasn`t it that Eastern European chappy who defected with all his tuning secrets? I think his name was Stanislov Stephensky or something.
 
Or Walter Kaaden possibly:thumb2

Edit....hadn`t checked out the link. The link is the story I was thinking about, but Walter`s name came to mind and his story has similarities.
 
I also have a vague memory of that, wan't he an MZ engineer? He went to Suzuki, and brought forward their 2-stroke development by years and years, apparently...:rob

PG
 
Or Walter Kaaden possibly:thumb2

Edit....hadn`t checked out the link. The link is the story I was thinking about, but Walter`s name came to mind and his story has similarities.


In the 1960s? I doubt it. Ernst Degner was yer man. I almost lived through it.


Both right.....Kaaden was the engineer who worked it all out, and Ernst Degner was the rider who defected to the west, ultimately taking Kaaden's two stroke knowledge to Suzuki....:)
 
Didnt he do a lot of the development work on the rg500?
Both right.....Kaaden was the engineer who worked it all out, and Ernst Degner was the rider who defected to the west, ultimately taking Kaaden's two stroke knowledge to Suzuki....:)
 
Proff blair

Was the mastermind behind the expansion chamber exhaust.:thumb2 he was at queens uni in Belfast and had worked out that by using the pipe you can reverse the pressure pulse thus forcing unspent air fuel mixture back into the cylinder. Very clever chap. I met him when I was recruiting from queens into the Motorsport industry. I had a fair bit to do with their 250 team when jezza was their rider and rob fleck was the team manager. Some of the very best Motorsport engineers studied under proff Blair. He was also the man who introduced me to kenny Roberts, chuck and warren willing which started a 6 year working partnership that was one of the best I've ever had.
I miss two stokes in racing.
 
Was the mastermind behind the expansion chamber exhaust.:thumb2 he was at queens uni in Belfast and had worked out that by using the pipe you can reverse the pressure pulse thus forcing unspent air fuel mixture back into the cylinder. Very clever chap. I met him when I was recruiting from queens into the Motorsport industry. I had a fair bit to do with their 250 team when jezza was their rider and rob fleck was the team manager. Some of the very best Motorsport engineers studied under proff Blair. He was also the man who introduced me to kenny Roberts, chuck and warren willing which started a 6 year working partnership that was one of the best I've ever had.
I miss two stokes in racing.

I’m not arguing here, just interested. My understanding is that Walter Kaaden sussed the whole two stroke expansion chamber thing in the 50’s and is therefore the the father of two strokes as we know them (well documented) Much later on, Blair of QUB, went on to refine the principles set out by Kaaden........:)


http://www.motorcycle.com/how-to/ho...ambers-work-and-why-you-should-care-3423.html
 
Blair also recruited road racer Ray McCullough, who began work as a technician in the Mech Eng Dept of Queen's University Belfast alongside the Prof. They developed various test-bed bikes which Ray would race locally at the weekends.

Best known of these was 'The Cube' (from the uni's initials "QUB") Blew everything local into the weeds at short circuits and road races. I think it had some kind of TZ Yam motor in a Seeley frame but the crux of the thing was the 'secret' exhaust system which eventually found its way onto several works Yamahas
 
Original QUB 500 was a "home built" engine - locally done castings etc. (Yam came later)
Bike used to live in the ground floor of the Ashby building (Queens area of Belfast) - last time I checked , it had been moved ...............
 


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