Nhra no bigger than stock cam journals

John Duzac · 12-21-2017, 10:00 PM

In 2010 Pat Cvengros wrote: The cam shaft may be of the larger journal design. Must use babbitt type cam bearings. Non-roller design.

Based on the above letter, you would think it would be permissible to run a big base circle cam. When considering all the changes to stock NHRA has made today with stocker heads, why would NHRA enforce a stock base circle cam. Pat Cvengros caused plenty of people to utilize the larger base circle cam which I believe would be very costly. A clarification needs to be made so racers know which way to go. The other question is how much could the big base circle cam help. It may not help at all!

12-21-2017, 10:00 PM	#6
John Duzac Member Join Date: May 2005 Location: Covington, La Posts: 311 Likes: 63 Liked 83 Times in 20 Posts	Re: Nhra no bigger than stock cam journals In 2010 Pat Cvengros wrote: The cam shaft may be of the larger journal design. Must use babbitt type cam bearings. Non-roller design. Based on the above letter, you would think it would be permissible to run a big base circle cam. When considering all the changes to stock NHRA has made today with stocker heads, why would NHRA enforce a stock base circle cam. Pat Cvengros caused plenty of people to utilize the larger base circle cam which I believe would be very costly. A clarification needs to be made so racers know which way to go. The other question is how much could the big base circle cam help. It may not help at all! __________________ John Duzac D/S 4448 STK