Camcraft-Cams



Some thoughts on choosing a proper cam: DRAG CARS

1- Cars with small tires or poor suspension may need a larger cam to kill some power off the line in order have a consistent launch without overpowering the suspension.

2- Hard tail dragsters usually run quicker with shorter duration cams but then lose consistency because the harder launch overpowers the track. Soft tail cars can adjust for the harder launch and remain consistent.

3- Be absolutely sure of your gear ratio when selecting a cam. Just cause your buddy told you that trick new rear is a 3.73 or 4.10 doesn’t mean it really is. If you pick a cam to go with a 3.73 rear and it turns out you have a 2.73 The difference would be 3529 rpm with 2.73 gears and 26” tires @ 100mph or 4822 rpm with 3.73 gears. The same cam won’t work real well in both scenarios.

4- The first thing to do in selecting a cam is to determine top speed in high gear. If 6,000 rpm = 150 mph in high gear and you will never see that speed then you definitely don’t need a cam with 6,000 rpm power. Tuning for power at too high an rpm is a very common mistake.

5- You need to make good power below the converter stall speed (not flash rpm) in order to hit the converter hard. This becomes more critical as car weight goes up. Peak power should be slightly below the rpm through the lights.

 

Our Location

54 Atrium Trail
Arden, NC, 28704

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Phone (828) 681-5183
Toll Free (800) 426-2261
Fax (828) 681-5185

Email: charles@camcraftcams.com

 

Happy Customers

Charles,
Thanks for the great cam and kit.  With your 240/240 .410 lift lobes on a 110 center we made 365 rwhp in our 331" Nova with a 2-bbl carb, about 40 hp up from the Comp cam we ran last year.  The torque peak was at 4500 rpm and the power peak was at 6500 rpm, well suited for the long uphill road sections we use.  I had no problems at all with the engine, no valve lashing was necessary and we used one set of plugs for the entire race. We finished 2nd in our class behind a Corvette, and eighth overall in a field of 70+ cars.  We were complimented frequently on how fast the little Nova ran, finishing well ahead of several 366" 4-bbl cars.  If only we could corner with the Vettes....

Thanks again,
Mike
Fairfield, CA

...read more Testimonials HERE


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Toll Free (800) 426-2261• (828) 681-5183 • Fax (828) 681-5185