DeTomaso Mailing List: August 99, Message #341

JDeRyke wrote:
John, just because a bushing or key is marked "2 degrees advanced", don't 
expect to always GET 2 degrees.......  The bushing method requires you to drill the dowel hole in the cam sprocket oversize, and most 
drill presses won't drill a round hole, nor will it be perfectly centered.......
And the adjustable cam sprockets are mucho dollar race-only.......

David Doddek wrote:
> Ford motorsport makes a timing chain set that has keyways cut with timing
> marks at +/- 2,4,6,8 and tdc.  As easy as that

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If I understand it right, the easiest way to adjust a misaligned cam is to get a timing chain with keyways cut for every 2 degrees. 

Question 1: How many people have these chains? Are all the other people basically wasting their time when they degree a cam?

Question 2: Steps of 2 degrees sound to me to be rather much. If you can alter the caracteristics of the engine with +/- 4 degrees, then +/- 2 degrees will for sure be noteable. But when you degree a cam, is it not unlikely to find an offset in your new cam of as much as 2 degrees? I.e. will it not be very unlikely that you will have to use any of the 2 degree-offsets?

Thanks,

Cristiano Rossi
thpnma 02869