Cam card info

General engine tech -- Drag Racing to Circle Track

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CamKing
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Re: Cam card info

Post by CamKing »

David Redszus wrote: Mon Oct 28, 2019 11:07 pm
CamKing wrote: Sat Oct 26, 2019 1:23 pm
Knight rider wrote: Fri Oct 25, 2019 4:38 pm
Thanks so yours has more duration on the exh ? Cheers

Edit
So is this correct for your specs cheers

Image
No. Those opening and closing numbers are for a cam that's 242 on the intake, and 288 on the exhaust.
It looks like you used the .050" intake duration for the intake numbers, and the .006" Intake duration for the exhaust numbers.

Here's the opening and closing numbers for my cam.
At .050" Lobe Lift
IVO: 14 BTDC
IVC: 48 ABC
EVO: 56 BBC
EVC: 10 ATDC
Overlap = 24

At .006" Lobe Lift
IVO: 37 BTDC
IVC: 71 ABC
EVO: 79 BBC
EVC: 33 ATDC
Overlap = 70
Mike,
Do you factor in valve diameter into the lift determination?
Not in this case. Reliability was more of a factor. I assume this is a hydraulic roller street/strip performance application, not a race-only application.
Mike Jones
Jones Cam Designs

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jonescams@bellsouth.net
http://www.jonescams.com
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Knight rider
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Re: Cam card info

Post by Knight rider »

CamKing wrote: Fri Oct 25, 2019 4:11 pm Just see if you can find a cam as close to my specs as possible.
We ship cams to Australia all the time, but it's expensive.

Check with SCM Engine Development in Ballarat, and see if they have something close.
I messaged SCM this is the closest he has, probably more overlap than I was looking at but not sure ?

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Re: Cam card info

Post by CamKing »

Knight rider wrote: Tue Oct 29, 2019 1:24 pm
CamKing wrote: Fri Oct 25, 2019 4:11 pm Just see if you can find a cam as close to my specs as possible.
We ship cams to Australia all the time, but it's expensive.

Check with SCM Engine Development in Ballarat, and see if they have something close.
I messaged SCM this is the closest he has, probably more overlap than I was looking at but not sure ?

Image
That one would put peak HP around 6,400rpm.
You may want to ask them if they dyno'd one of those cams in an engine your size, and see if they'll let you see the results, to see if it'll work for your application
Mike Jones
Jones Cam Designs

Denver, NC
jonescams@bellsouth.net
http://www.jonescams.com
Jones Cam Designs' HotPass Vendors Forum: viewforum.php?f=44
(704)489-2449
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