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HELP! Rocker arms??
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Deni
I watched Corvette Summer
| Posts: 1
| Joined: 12/07
Posted: 12/05/07
11:29 PM
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so im new at this rebuilding stuff and i was woundering what the main diffrence was between "roller tip" and "full roller" besides the price and is it worth going to a full roller rocker?
any help is grealty apprciated
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trickyrjb
I watched Corvette Summer
| Posts: 3
| Joined: 12/07
Posted: 12/09/07
10:06 PM
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"Roller tip just has a single roller on the tip of the rocker arm that comes in contact with the valve stem tip. While this does significantly reduce friction compared to a stamped steel rocker, it cannot compete with a full roller rocker which has a needle bearing fulcrum as well as the roller tip. Your decision would probably be best based upon the other components of your valve train and your intended rpm.
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trickyrjb
I watched Corvette Summer
| Posts: 3
| Joined: 12/07
Posted: 12/09/07
10:12 PM
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Also check out rocker arms 101 under "technical" on the banner line of this page!
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55Guy
Administrator
| Posts: 210
| Joined: 07/06
Posted: 12/12/07
08:50 AM
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A roller tip does nothing to reduce friction on a rocker arm. If anything, it's been found that roller tips increase the side wear on valve guides.
The real and only measureable friction reduction in a rocker arm is when a roller fulcrum is installed, like in most good roller rockers. A good set of roller rockers in stock ratio will give you 10-15 HP increase.
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