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Author Topic: Norton 2 strokes (yes you read it right!)  (Read 431 times)

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Offline javelin grl

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Norton 2 strokes (yes you read it right!)
« on: March 20, 2017, 04:37:33 PM »
Saw a pair of stepped piston 500cc 2 stroke twin prototypes at the National Motorcycle Museum last week. Sadly these never made it to the bike shops as the factory was in dire straights by then. Remember seeing the air cooled one in the bike rags of the mid 70s but never knew of the water cooled bike.
Anyone else got any further info about another what might have been?
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Offline Triple Jim

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Re: Norton 2 strokes (yes you read it right!)
« Reply #1 on: March 20, 2017, 04:49:07 PM »


:)

Offline kdsmf

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Re: Norton 2 strokes (yes you read it right!)
« Reply #2 on: March 20, 2017, 07:32:41 PM »
Very interesting, never heard of them.

Offline kdsmf

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Re: Norton 2 strokes (yes you read it right!)
« Reply #3 on: March 20, 2017, 07:46:34 PM »
Beautiful bike in that pic, love the pipes.

Offline teazer

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Re: Norton 2 strokes (yes you read it right!)
« Reply #4 on: March 21, 2017, 09:00:43 AM »
It was a prototype called the WULF iirc.  Yes I just found a few articles on line

http://www.bernardhooperengineering.co.uk/bhe.htm


Online oldjohnno

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Re: Norton 2 strokes (yes you read it right!)
« Reply #5 on: March 21, 2017, 02:10:32 PM »
It was a prototype called the WULF iirc.  Yes I just found a few articles on line

http://www.bernardhooperengineering.co.uk/bhe.htm

Interesting that Hooper is still working on the idea, it seems that the focus is more on emissions than performance.

In recent times the Ryger engine has been developed along similar lines with the crankcase isolated from the pumping chamber under the piston. The original claims from this engine were fantastic - 70hp and 30k rpm from a 125 - but it seems the reality isn't so spectacular. The design has been homologated for kart use and engines are being produced and are available now. To date though no-one seems to be racing them.
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Offline teazer

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Re: Norton 2 strokes (yes you read it right!)
« Reply #6 on: March 21, 2017, 04:18:27 PM »
I believe that Hooper has passed away. The idea was interesting but didn't go far.

Offline 50gary

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Re: Norton 2 strokes (yes you read it right!)
« Reply #7 on: March 21, 2017, 07:34:37 PM »
Motor looks a bit like my T500?  Badge engineering.  Probably would be a nice bike, featherbed and a T500 with chambers should put a smile on anyone's face in 1975.
  Cheers, 50gary
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Offline javelin grl

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Re: Norton 2 strokes (yes you read it right!)
« Reply #8 on: March 22, 2017, 12:58:49 AM »
Thanks all, interesting bikes, too bad they never made it into the shops. Can highly recommend the National Motorcycle Museum if you're in the UK. Us Brits didn't just build singles & twins there's a lot of interesting 2 strokes there (Scotts including the 3 cylinder bike, Silk, Greeves,a ton of Villiers powered bikes including a Norman B4 Sports one of the prettiest bikes ever). My only complaint is some bikes can be difficult to view due to so many in one place.
15 883 R Sportster
83 DT 125 LC it works again!
69 AMC Javelin
07 VW Beetle