I've noticed a few posts recently regarding upgraded Camshafts (Cams).
To be honest - I have no idea what all the specs and figures mean, what you can expect from them, or what needs to be done to an engine to fit them (Cost, etc.)

Hoping someone here can shed some light on this, for us noobs and mechanically inept. lol



BJ31OS, Is/Was selling his Cams...
Link: http://www.aussiemagna.com/forums/showthread.php?t=60492
Specs: tighe - 252 Duration

There was an ebay auction posted in the AMC ebay thread recently. (Pics have been attached below as they will eventually disappear off ebay)
Specs: See attached pic.

The Ralliart Magna has different Cams to a stock Magna - I don't know their specs.
However I did find this... http://www.aaa.asn.au/roadtests/reports/371.pdf
...Some of the engine modifications include an increased compression ratio (9.4:1 up from 9.0:1), a high lift camshaft that provides 10% additional lift for improved top end performance, a sports exhaust with stainless steel header pipes, modified cylinder head combustion chamber and a remapped engine ECU...


So what do all the numbers mean?
(...and does anyone know what the Ralliart Cam specs are?)
.

the cams i you speak of Ebay are sold as i just bought them they are a 256 duration cant help to much with what the numbers mean as i dont know to much about them i just know the ones im selling are the same specs as the stage 1 RPW cams

Try this it might explain a few things

CLICK ME (http://www.rpw.com.au/Products/Engine%20Components/Camshaft%20Specifications/camspec6g7s24.htm)

This might help?
http://auto.howstuffworks.com/camshaft.htm

This page explains it well, and has a little calculator down the bottom where you can input came info (i.e from the pic you posted) to get the duration, lobe seperation etc.

http://www.rbracing-rsr.com/camshaft.html

Thanks guys :thumbsup: Some interesting reading there for the weekend.

throw this 1 into the mix. if you search thru the site u'll find alot of other tech articles that will help you understand it all pretty good. just remember that is is based on pushrod v8 engines, but the basics are the same across the board.

http://www.carcraft.com/techarticles/116_0403_camshaft_basic/index.html