Author Topic: General Cam profile comparison thread.  (Read 2195 times)

cecotto

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General Cam profile comparison thread.
« on: March 04, 2007, 08:13:10 PM »
This is my Catcams intake compared to the standard intake.

I'll do the exhausts too in near future.

And hopefully also some Schricks. But i don't have those at hand, so i need to borrow them..

I have chosen to do a measurement each 5 degrees, i think that's suffucient to do a nice visual.

The measurements are taken on a flat tappet, so the curves reflect actual valve motion. On the cat cams you will have to subtract the valve lash. as this is a mechanical profile.

It's worth pointing out the difference on the ramps, the mechanical profile is much more gentle in the initial lift, and seating phases.  Where the hydraulic (standard cam) is very steep.
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Steffen Otto Jensen
E30 318is
E30 M3

Davidoff

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General Cam profile comparison thread.
« Reply #1 on: March 15, 2007, 08:33:42 PM »
where would i be able to get these ,
im form canada
what model is this ,
form the diagram i dotn think they are to agressive for the stock springs , what do you think ?

cecotto

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General Cam profile comparison thread.
« Reply #2 on: March 16, 2007, 02:41:57 AM »
Try looking up their options: http://www.catcams.com

My cams are not listed on the list, they are 284/271 as i remember.

They lift 12mm, and the stock are just below 10mm. So you would have to be sure the springs can take this extra lift. On their website you can find canada dealers.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Steffen Otto Jensen
E30 318is
E30 M3