WANTED: R3 or Roller Cam shaft

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PackardV8
Studebaker Racing Team Member
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Joined: 24 Nov 2005, 09:51

Re: WANTED: R3 or Roller Cam shaft

Post by PackardV8 » 04 Mar 2019, 13:26

My bad for not clarifying that boost info. I input 7 PSI, and that's a guesstimate on the high side; I've never been able to make a SN60 hold anywhere near 10 PSI.

jack vines

Bill Van Alstyne
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Joined: 16 Feb 2013, 17:11

Re: WANTED: R3 or Roller Cam shaft

Post by Bill Van Alstyne » 04 Mar 2019, 13:55

Thanks to you also Jay. I've been trying to get a hydraulic roller for a future build and have let Phil Harris put my name on the list. I don't have a grind in mind but what Jeff has posted is right up my alley. My intentions are to have a blower with a throttle body injection on one of Jeffs intakes and his cnc'd heads. There will be a 200 4r trans behind it and 373 gears in the rear, all into my '64 GT Hawk. So thanks to all of you for your input, it is all very valuable to others of us following these threads. Bill

Jay Bradel
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Re: WANTED: R3 or Roller Cam shaft

Post by Jay Bradel » 04 Mar 2019, 14:31

Bill,

It is great that everyone is so helpful on this site. I have leaned a lot myself so far and anxious to learn more for my projects. Jay

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64Avanti
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Re: WANTED: R3 or Roller Cam shaft

Post by 64Avanti » 04 Apr 2019, 23:31

Yes you need to get the lobes in the correct spot. I made some shims to correct the problem for some of the roller cams that were produced a few years ago that had the lobes a little offset from where they needed to be.

If anyone is getting serious about making roller cams I can provide drawings with the correct location for the lobes.

Anyone who has one of the roller cams and has not used it my want to contact me about the shims to correct the problem.
David Livesay

Jay Bradel
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Re: WANTED: R3 or Roller Cam shaft

Post by Jay Bradel » 05 Apr 2019, 08:50

I made 10 blanks so far. Phil is going to have them finished. I put 2 blocks on our CMM and created a CADD drawing of the locations. From what I learned, cam lobes should be on center of the lifter bore while flat tappet cam lobes are shifted off center to create lifter rotation.

I have the CNC program saved and ready to make more blanks once Phil is ready.

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64Avanti
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Re: WANTED: R3 or Roller Cam shaft

Post by 64Avanti » 06 Apr 2019, 02:35

Jay, you may want to check against block dimensions. I have made a cam drawing based on the actual block dimensions.

You can contact me about it if you want.
David Livesay

Jay Bradel
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Re: WANTED: R3 or Roller Cam shaft

Post by Jay Bradel » 07 Apr 2019, 15:00

I checked two separate engine blocks with full flow oil filters on my CNM to obtain actual dimensions from the lifter bores in the blocks itself. I then centered each lobe with the lifter bores.

If you don't mind I will send you my dimensions Monday to compare with yours. It's always better to double-check.

Jay Bradel
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Re: WANTED: R3 or Roller Cam shaft

Post by Jay Bradel » 08 Apr 2019, 13:52

64Avanti wrote:
06 Apr 2019, 02:35
Jay, you may want to check against block dimensions. I have made a cam drawing based on the actual block dimensions.

You can contact me about it if you want.

David, let me know if you received my drawing.

Jay

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