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Pump Cams
http://motorsportsvillage.com/forum/viewtopic.php?f=6&t=9140
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Author:  jmarkaudio [ Sun Apr 22, 2012 12:44 pm ]
Post subject:  Pump Cams

Found this in an older Holley book, and put it in a spread sheet.

Image

Author:  Larry Woodfin [ Sat Apr 28, 2012 7:15 pm ]
Post subject:  Re: Pump Cams

Thanks Mark, I printed it for future use.

Author:  Ron Gusack [ Wed Jul 18, 2012 6:49 pm ]
Post subject:  Re: Pump Cams

Here's a pretty neat graph of the cams all stacked up. I guess they're all in position 1.
www.holley.com/data/Products/Technical/PumpCamGraph.pdf

Author:  Beretta [ Sun Sep 02, 2012 12:02 pm ]
Post subject:  Re: Pump Cams

Ron Gusack wrote:
Here's a pretty neat graph of the cams all stacked up. I guess they're all in position 1.
http://www.holley.com/data/Products/Tec ... mGraph.pdf




Could I assume the the yellow and brown are Dominator cams?? Or is there yellow and brown 4150 cams also??

Author:  Ken0069 [ Sun Sep 02, 2012 12:44 pm ]
Post subject:  Re: Pump Cams

No, that brown #336 is a 4150 cam cuz I've got one here and it's 4150 shaft size. I've also got a brown #664 4150 cam that is not listed on either of these charts but it's identical to the #336?

These are also a VERY different profile from the regular 4150 cams? Maybe 50cc pump on a 4150 carb?? :-k

Author:  Beretta [ Sun Sep 02, 2012 1:11 pm ]
Post subject:  Re: Pump Cams

Ken why don't you post that graph Ron has the link for below Mark's. If that ok with you guys =; ..

Author:  Ken0069 [ Sun Sep 02, 2012 1:35 pm ]
Post subject:  Re: Pump Cams

Beretta wrote:
Ken why don't you post that graph Ron has the link for below Mark's. If that ok with you guys =; ..


PDF file has to be converted to .jpeg some way before it can be listed as an IMG file here. You "might" be able to view that PDF full screen then take a screen shot to convert to .jpeg. Then you might have to also resize it before it will appear here. If you get a link to it then PM it to me and I'll put it in Ron's post since he was the one that found it.

Author:  holdenguy [ Wed Sep 05, 2012 5:05 am ]
Post subject:  Re: Pump Cams

nice find guys, i have the overlaid graph from years ago when someone posted it on the innovate forum but the one mark posted is going in that folder too!

The yellow+brown (its more like a dark red to me) cams are for 50cc pump kits on 4150. Ive had a hell of a time over the years trying to convince people there are more than just OOTB pink pump cams for a holley lol.

Never had any joy with the 50cc pump/cam on my street engines (sub 500hp stuff, <360cube), poisoned the oil real quick with too much pedal work on the street.

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