what took 3 hours for degreeing?
On Thu, 11 Feb 1999, Erik Bjorkner wrote:
>
> Thanks to all those who sent info on degreeing my cam for my SPIT
>autocrosser!!
>
> I was having a problem with power above a certain RPM.. thought it was the
>Stromberg and crappy exhaust on it.
>
> The cam was advanced about 10 degrees. I was going to advance it so the
>power was not above 6000 RPM's (cam card states good for 6300) but I decided
>to install it straight up or as close to that. It is now 1 degree retarded..
>close as I could get it.
>
> I experimented with the degree wheel much and it turns out that one tooth is
>equal to 18 degrees. Therefore, one movement of the cam gear is about 4 1/2
>degrees. I had some positions which I doubled checked and I came up with
>different numbers.. now the queer thing is that I got these different numbers
>very constantly.. But he one it is set to now was always on the ball.
>
> One important item was my cam does not have the same slope before and after
>the lift (asymmetrical) and it was very difficult to get the cam movements to
>less than a thousandth but when I did the results were very good (less than
>1/4 degree).
>
> I would recommend all degree their cams when rebuilding the engine.. took
>about 3 hours but it is worth it!!!!! TOOK A TEST DRIVE WITH A OPEN HEADER>>>
>W O W <<<<<
>
> Can't wait till next weekend for the first race with the new Supper Trapp
>exhaust and the cam retimed!!
>
> THANKS!!
>
> Erik Bjorkner
> Mobile, AL
> 76 SPIT # 66 DP
>
>
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