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Old 03-27-2012, 12:15 PM   #1
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Valve timing data

Can anyone give me:
-The intake valve opening BTDC in deg and closing ABDC
-intake valve lift in mm
-intake port size dia in mm
-intake valve dia in mom
-actual valve port area in sq mm
-bore dia in mm
-stroke in mm
-compression ratio

This would be with vario cam actuated on a 3.2L 2000 S

Thanks
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Last edited by jaykay; 03-27-2012 at 12:21 PM.
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Old 03-27-2012, 02:08 PM   #2
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Quote:
Originally Posted by jaykay View Post
Can anyone give me:
-The intake valve opening BTDC in deg and closing ABDC Rennlist ??
-intake valve lift in mm 10.5mm for 2003 3.2 VarioCam + 2000 ??
-intake port size dia in mm 58mm X 30mm @ inlet
-intake valve dia in mom 37.1mm
-actual valve port area in sq mm ??
-bore dia in mm 93mm
-stroke in mm 78mm
-compression ratio 11 to 1

This would be with vario cam actuated on a 3.2L 2000 S

Thanks
I believe Rennlist has Cam timing specs.

Last edited by BYprodriver; 03-27-2012 at 02:09 PM. Reason: clarification
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Old 03-27-2012, 03:12 PM   #3
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Its in the factory manuals..

and I can only find 2.5 right now.. I have CaymanS/3.6/3.8/3.8X51 but don't see 2.7 and 3.2

These would have been supplements to the 986 2.5 factory manuals



B
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Old 03-27-2012, 03:19 PM   #4
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Decided to post the 2.5 so people have it:

Valve timing with 1 mm valve travel

Inlet opens 15D after TDC
Inlet closes 46D after BDC
Outlet opens 38D before BDC
Outlet closes 7D before TDC
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Last edited by Brad Roberts; 03-27-2012 at 03:26 PM.
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Old 03-27-2012, 03:26 PM   #5
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Found it.. I did have it

3.2 Boxster S

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Old 03-27-2012, 03:30 PM   #6
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Boxster 2.7


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Old 03-27-2012, 04:57 PM   #7
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Thank you for the information gentlemen!
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00 986 S....with a few tweaks
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Old 03-27-2012, 05:14 PM   #8
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I'll post a plot from my cam doctor tomorrow.
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Old 03-27-2012, 05:33 PM   #9
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Too funny,

I used the cam doctor at AASCO to look at all the stock cams.. LOL
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