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dialing in a cam help 

 

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 Post subject: dialing in a cam help
Posted: Mon Jan 29, 2007 8:09 pm 
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I want to know what is dialing in a cam, yes i am a dingus, probably a stupid question, if anyone could tell me what this is id like to know

 

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Posted: Mon Jan 29, 2007 9:08 pm 
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its getting the correct valve opening and closing times to suit the power band you wish to have. just basically, moving the cam round degree after degree, without adjusting piston movement or ignition timing to get things opening and closing to suit your needs
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Posted: Mon Jan 29, 2007 10:09 pm 
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Trikee wrote:
its getting the correct valve opening and closing times to suit the power band you wish to have. just basically, moving the cam round degree after degree, without adjusting piston movement or ignition timing to get things opening and closing to suit your needs


Am i correct in thinking this is only able to be done with an adjustable timing gear on the cam. This is the case with the 6's but unsure if the windsors are the same?

 

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Posted: Mon Jan 29, 2007 10:18 pm 
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if u get a new timing chain they often have keyways set so u can spin the crank cog around a bit and it will offset the way the chain sits on, giving you a few degrees of advance or retardation depending on the keyway.

 

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Posted: Mon Jan 29, 2007 10:31 pm 
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You can change when the power comes on, so if you retard the cam timing, the power comes on later, and if you advance the cam timing, the power comes on earlier. Only 4 dgs either way makes a fair difference.

 

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Posted: Mon Jan 29, 2007 10:38 pm 
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yeh wot was it 1 degree moves it 250rpm in the range or somethin?

 

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Posted: Tue Jan 30, 2007 5:07 pm 
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no idea on how much movement gives you how much power.

the principle is the same 6 cylinder or 8. ford holden toyota anything with a cam, in theory, can have the cam timing changed with an adjustable cam gear
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