which camshaft?
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Like Flo I have a PW3 but on a 750 and with a ported head and 9.7 compression it pulls OK but doesn't have the drive of a 2S for example. Carb needles now in highest position but I think a session on a Dyno would help. It pulls well from 3000, not much worse than std but for all the extra lift it is disappointing at 4500 + where I expected more go, though I have to say my bike is geared up a little via the belt drive at 4.114:1 overall. Depends what riding you want to do. It also makes for a very noisy exhaust, at least on mine it is noticeably louder than with std cam. I'd say if you want a nice rideable Commando stay with the std cam, the 850 is after all very torquey compared to a 750.
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Unless you want to pretend to be a racer stick with the std, no hassle, sweet running, no mods to do
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nortonspeed
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If you really want quality go for a Megacycle cam. They make the new Andover cams look like a semifinished product. For normal road use the 560NR is a very fine cam!
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The Web Cams 12 and 12a should be candidates, good for increased mid range (12) and mid to upper (12a) without a big sacrifice in getting off the line.
RS
RS
Hortons Norton
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+1 on the 560NR It has a nice powerband.
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nortonspeed
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pvisseriii said:
Definitely!
Hortons Norton
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Yes in fact mine were sent to megacycle for this.
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Go here to see Nort cam profiles for stock lifters including stock lifters that are radiused.
http://atlanticgreen.com/camsurvey.htm
Go here to see cam profiles for Norton cams fitted with lightweight BSA lifters (click on thumbnail images at far right):
http://users.gotsky.com/jimschmidt/tapblocks.html
The pointy nose cams for stock lifters have wear problems at full lift. The cams for radiused followers don't have that problem.
http://atlanticgreen.com/camsurvey.htm
Go here to see cam profiles for Norton cams fitted with lightweight BSA lifters (click on thumbnail images at far right):
http://users.gotsky.com/jimschmidt/tapblocks.html
The pointy nose cams for stock lifters have wear problems at full lift. The cams for radiused followers don't have that problem.
i've got a belt drive, 23 tooth drive sprocket, single mikuni carb, ride on all roads from motorway to country lanes and the standard cam has served me well for the 3500 miles i've done since having her on the road. was looking to see if there was a general consensus on an overall best option. sounds like everyone likes something different which is great.
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