Re: Racer Brown Cams Info

[SReasbeck@xxxxxx]

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Back in the day we used STX-21 or STX-25 grinds. Both were flat tappets, and 
both were very, very good. 

The "R" designation indicates you were using a roller. The 72 was probably a 
smaller one. I still use a R-104, which has an advertised lift of .660, but 
works out to a true lift of around .707. It has worked great for over twenty 
years.

We run Nostalgia SS, and the new technology dictates that we build the motors 
to operate at a much lower engine speed than in the old days. You don't build 
the motors to run 7500 rpm any more, technology has advanced to make the 
engines run around 6500-6700. This is easier on everything, and as a result 
camshaft design has changed drastically.

I am having Racer do a cam for me currently with a bit lower lift and 
duration, but ground on a centerline that will bring the rpm range to the desired 
level. As a result, we can take gear out of the car, and run just as quick.

                                                                              
 Steve R. 

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