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Baja Forums -:- VW Volkswagen Bug, Baja, Bus, Sandrail and Thing -:- VW Volkswagen & Baja Bug General Discussion -:- cam with high ratio rockers?
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cam with high ratio rockers?
Bug, Baja, Thing and Buggies. Most every thing that will not fit any any other area. See list of other Forums for better topic placement...Volkswagen General Discussion
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nube_w_1970baja
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Post Post subject: cam with high ratio rockers?
Posted: Fri Nov 30, 2007 06:59 AM
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so, i'm guessing that you need to change the cam to modify the engine characteristics, right?

or is it that you can change the rockers to 1.10, 1.25, or 1.40 to get more power?

sorry, kind of spacey, waiting for parts to be all ready:)


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Post Post subject: Re: cam with high ratio rockers?
Posted: Fri Nov 30, 2007 03:53 PM
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Answer to ? 1 is yes. The cam is the brain. Higher ratio rockers only effect one aspect of the cam and that is lift. They have no effect on cam timing, lobe center, or duration. It is an acceptable method of getting a little more out of your cam. The trade off for the benifit is increased valve guide wear. They tend to side load the valve. Things to check for when increasing rocker ratio, coil spring bind, retainer to guide clearance, valve to piston clearance, and confirm your rocker arm geometry(pushrod length). Good resource book is How To Hotrod Your VW.


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