[riverrock]

I realize this is like 2 1/2 years later but, was there ever another batch of "s" cams made for the AVL ? I'm not sure what PM to Bullet Whisperer is.

[High On Octane]

PM is personal message.  If you click on Bullet Whisperer's profile, there is an option to send a personal message.  There were talks of another run, but I'm not sure where he is at on that.  I'm sure he will chime in here soon.

[DanB]

Actually, there was a batch made up earlier this year.  BW's pm works just fine, and he frequents this community.

See: http://www.enfieldmotorcycles.com/forum/index.php/topic,17625.0.html

[Bullet Whisperer]

The last batch of 'S' cams all had names on them and sold out. Three batches of 6 sets all went in total and I sometimes wonder if that just about satisfied the bulk of the demand. I have none available at present, but more could be made if there were still enough interest in them.
 B.W.

[armando_chavez]

I was able to get post 1956 S cams from hitchcocks and they work just fine

[wdco42]

Hello BS,
I have a 1951 500 J2, would those cams give her a bit more oummph ??
Thank you
Claude

[ace.cafe]

Hello BS,
I have a 1951 500 J2, would those cams give her a bit more oummph ??
Thank you
Claude

I don't know much about the J2, but if it uses the same cam gears as the later Bullets, it would add higher revving capability. If you feel that the J2 might not be strong enough to take higher revving, then you might need to build up the engine for strength first.

[wdco42]

Hello Tom,
I try to apply to the J2 some of the mods I've made for my CO to get it more solid : "real" crankshaft bearings, big oil pump (the funny thing is that the J2 has originally the big diameter inlet oil pump piston...), improved oiling system and lightened distribution (alu pushrods and valve collars), and added a brand new crankshaft from Alpha Bearings.
I plan to have some strenghtening made in the crankcases, especially the drive side one, as it looks a bit week.
The J2 cams are virtually the same as the CO, with the same duration (iv 30/60, ev 75/35), but the 500 has 150cc more and a double exhaust port to deal with...
I don't know about the S cams, that's why I asked to "the men who know"..
The idea is to have a more lively bike than the original sidecar puller she was.
So, all your advices are very important for me.
Thank you for your "lights"
Claude

[ace.cafe]

Claude,
With all that done to your engine, you can definitely boost the power.
The cams on the 350 and 500 are the same. If you have 38 teeth on the cam gears, with a 5/8" shaft, then all Bullet cams should work in it. You'll need valve and port work to get the most from them. A larger carb to suit the port work would be needed too. We should talk about this. 

[Adrian II]

With an uprated and toughened engine, could you consider a set of "R" cams? 

A.

[ace.cafe]

With an uprated and toughened engine, could you consider a set of "R" cams? 

A.

He could even do Magnum Cams, or Hitchcock cams.  But basically all Bullet intake ports flatten off flow at .350" lift, so porting would be a good idea if more lift is involved. Also valve springs and valves.

[Bullet Whisperer]

The WIDTH of the cams will be the only limiting factor. I know on the pre '56 350 G2 machines and Model G types, the cams are narrower than on later ones, it might be worth checking if this applies to your machine My own 1955 JS 500 is compatible with all the later style, wider cams. Hope this helps!
 B.W.
 P.S., As it stands there is not enough interest out there to commission another batch of 'S' cams at present.

[SteveThackery]

Due to a few vague enquiries about any more of these being available, I wish to guage interest for a possible repeat batch of these being made. They work well in the AVL engines and also the 'Iron' engines.

Hey, BW, would these fit the UCE?  I know the UCE is based on the AVL engine, so thought it worth asking.

[ace.cafe]

Hey, BW, would these fit the UCE?  I know the UCE is based on the AVL engine, so thought it worth asking.

Can't do.
The UCE uses roller tappets. The Iron Barrel and AVL use flat tappets.
Flat tappet cams are not compatible with roller tappets, and vice versa.
Also, the UCE cam gears have different number of teeth than previous cams, probably as a preventive measure to avoid accidental swapping.

[SteveThackery]

Ah, OK, thanks Ace.