Welcome to the Access Norton Forum. Login as a VIP member to remove the advertising banners.


Norton Single's Performance

Norton Models (not Commando or P11)

Re: Norton Single's Performance

Postby Burgs » Fri Jul 29, 2016 8:24 pm

Hi
As Rohan states Mike Pemberton & Pushrod Performance seem to know what he is doing.

Big problem with the Jawa it is not a Norton, other issue is to address the total loss oiling system?

My 500DT-89 Jawa engine cost less than $695 brand May 1976, (noticed one on Allen Ebay linkt for $1,500??) and replaced it for very much worked B33, there was no comparison for power and reliability.
Big ends were an issue and needed some work after around 12 meetings, rings also needed changing, valve springs, yes you could do a years racing with only top end work, if you didn't attend to them you just stopped running up the front.

Had an early iron head ES2 in a Aerial Huntmaster frame, high compression piston, hot cams and ported/reangled inlet and bigger carby, that also went very quick in the late sixties.

Regards
Burgs

Burgs
Posts: 115
Joined: Sat Dec 14, 2013 2:38 pm
Location: Australia

Re: Norton Single's Performance

Postby acotrel » Sat Jul 30, 2016 2:18 pm

Mike Farrell in Queensland sells a conversion oil pump to dry-sump a Jawa engine.
User avatar

acotrel
Posts: 6028
- Images: 0
Joined: Sat Jun 30, 2012 5:39 am
Location: Benalla, Australia

Re: Norton Single's Performance

Postby skipsoldbikes » Tue Sep 12, 2017 6:11 pm

I have quite an inventory of Norton Singles stuff, both new & used. I also own Mike P.'s build video that I am happy to lend. I own a plunger frame ES2 myself & the best part is, I only live an hour North of you :)

Skip Brolund

skipsoldbikes
Posts: 103
Joined: Fri Jun 03, 2011 7:06 pm
Location: Northeast Ohio

Re: Norton Single's Performance

Postby robs ss » Tue Sep 12, 2017 10:40 pm

NoisyNorton
I get 110mph out of my slimline Model 50 (350cc ES2)
I posted some info here: es2-testing-photo-upload-from-flickr-t25762.html
Did all the work at home - other than some machining done by a friend
I did get a lot of information from Geoff Clatworthy (built the ES3 Rohan posted photo of, also ES4 - the next generation)
I'll give you whatever information you want if you're interested
Cheers
Rob
1962 Norton ES2
1964 Norton 650SS
User avatar
Access Norton VIP Paying Member
robs ss
VIP MEMBER
Posts: 186
Joined: Tue Aug 16, 2016 3:17 am
Location: Boyne Island, Queensland, Australia

Re: Norton Single's Performance

Postby batrider » Fri Sep 15, 2017 6:05 am

robs ss wrote:NoisyNorton
I get 110mph out of my slimline Model 50 (350cc ES2)
I posted some info here: es2-testing-photo-upload-from-flickr-t25762.html


So it's really a 500. I might be able to believe that.
'72 Combat Roadster 2020xx
'61 Matchless G3 350, ex-Dutch Army
'09 H-D XR1200
User avatar

batrider
Posts: 1711
Joined: Sat Aug 09, 2008 5:09 am
Location: UBE, PA USA

Re: Norton Single's Performance

Postby acotrel » Fri Sep 15, 2017 5:55 pm

When I was racing my short stroke Triton 500, I did not believe many singles were as fast as it until I rode a good 1962 manx. It wasn't the power, it was the handling. I could ride it around corners much quicker even though it had the same frame. It is about the position of the motor. I think my Triton actually forced me to become a much better rider, however I'm still not good - I know how to crash safely. That is probably all a bad bike can reach you. I once encountered a very good rider on a Gold Star BSA - he gave me a run for my money at Phillip Island . The Triton was all top end power, so I saw him off down one of the long straights.
User avatar

acotrel
Posts: 6028
- Images: 0
Joined: Sat Jun 30, 2012 5:39 am
Location: Benalla, Australia

Re: Norton Single's Performance

Postby robs ss » Fri Sep 15, 2017 6:22 pm

batrider wrote:
robs ss wrote:NoisyNorton
I get 110mph out of my slimline Model 50 (350cc ES2)
I posted some info here: es2-testing-photo-upload-from-flickr-t25762.html


So it's really a 500. I might be able to believe that.


Yes it is now 500cc
Better bore stroke ratio (85 x 88) than the ES2 (79 x 100) so it's not as "lopey" as the ES2
Not everyone's cup of tea but I love it
1962 Norton ES2
1964 Norton 650SS
User avatar
Access Norton VIP Paying Member
robs ss
VIP MEMBER
Posts: 186
Joined: Tue Aug 16, 2016 3:17 am
Location: Boyne Island, Queensland, Australia

Re: Norton Single's Performance

Postby acotrel » Thu Sep 21, 2017 4:55 pm

How can you increase the inlet tract down-angle on an ES2 cylinder head ?
User avatar

acotrel
Posts: 6028
- Images: 0
Joined: Sat Jun 30, 2012 5:39 am
Location: Benalla, Australia

Re: Norton Single's Performance

Postby robs ss » Thu Sep 21, 2017 6:13 pm

By machining and welding in a new port
Access Norton Attachments
1962 Norton ES2
1964 Norton 650SS
User avatar
Access Norton VIP Paying Member
robs ss
VIP MEMBER
Posts: 186
Joined: Tue Aug 16, 2016 3:17 am
Location: Boyne Island, Queensland, Australia

Previous

Return to Other Nortons

Who is online

Users browsing this forum: No registered users and 2 guests