CAN-AM (BRP) Discussions about CAN-AM ATVs.

Cams or Piston?

Old Oct 21, 2002 | 03:06 AM
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Ds650RaCeR's Avatar
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Default Cams or Piston?

ok i either have the choice of getting come new cams or piston.what do yall think what kind of cams/pistons and who from.thanks
Tate
 
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Old Oct 21, 2002 | 03:36 AM
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Default Cams or Piston?

Tate- go piston first. Do a search on cams. Most guys seem disapointed with the cams they have ordered. Shove the highest comp piston you can get in there. i think sam coe is the cheapest.
 
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Old Oct 21, 2002 | 04:40 AM
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Default Cams or Piston?

All or nothing I say - do both. Head gasket is $50, don't pay for two by doing cams and piston one at a time.
Which cams will depend on your ride style. I just about had myslef sold on the aggressive .425lift/287deg. duration for maximum 300 yrd. drag race ability in the dunes, but this would only cost me valuable low end for the trail riding where I spend 90% of my time, so I decided to go with the .395lift/286deg. from WebCam. This smaller lift only requires heavier springs, and not the more costly shim-under-bucket conversion kit needed for the higher lifts, and will give more power throughout the rev, with no sacrifice in low end.
Don't expect too much though - from what I've seen and heard, only 6 or 7hp can be got going with the whole package, and choosing just one or the other seems to leave most people a little dissappointed. If you've got the 45mm carb, CDI box and pipe already, I'd expect cams and pisotn would gain you equally as much as you gained already, which would make for a really mean bike once tuned well.

Oh, and if NOS is on your future agenda, RWR just came out with a new piston designed just for it, with a thicker crown above the first ring to help with scorching of the rings at high hp boosts.

Web Cams
 
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Old Oct 21, 2002 | 12:11 PM
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Default Cams or Piston?

I agree. Either do both now or wait and do both later.

My understanding is that the cams generate more power in the higher RPM range and the high compression piston gives you more power (torque) in the low RPM range. If you just do cams, you will be able to drag but you won't enjoy trail riding. If you just do piston, you will gain low end torque but, your riding buddies will laugh at you because you won't be much faster in the drags and you "just spent all that money."

As for the piston compression, keep it under 12:1 or you will need to run race gas. I think the 11:1 is a good option (no race gas needed.)
 
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Old Oct 21, 2002 | 02:04 PM
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Default Cams or Piston?

I HAve a set of cams for sale for 200.00 never been in my 4-wheeler


my cam are WEB CAMS #110 395lift/286deg.
 
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Old Oct 21, 2002 | 04:51 PM
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Default Cams or Piston?

I was wondering if Ron Woods cams are any better b/c they cost 400 bucks?
 
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Old Oct 21, 2002 | 06:31 PM
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Default Cams or Piston?

i agree with high tower do both it is to much work to do them seperate and the results would be slim.
 
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Old Oct 21, 2002 | 07:12 PM
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Default Cams or Piston?

Quadman650,
Didn't you have to give Webcam your stock cam in order to get back your 275 dollar core charge?
 
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Old Oct 21, 2002 | 08:01 PM
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Default Cams or Piston?

NO I GOT THEM FROM A GUY
 
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Old Oct 21, 2002 | 08:25 PM
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Default Cams or Piston?

I was thinking about stoping by webcam on my way home from work tomorrow and getting that exact same set up. But they also wanted the 275 core as I stated. If you don't mind me asking, why are you not going to use them. As you can see I may be interested in them myself[img]i/expressions/face-icon-small-smile.gif[/img]
 
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