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-   -   Valve timing data (http://986forum.com/forums/showthread.php?t=34609)

jaykay 03-27-2012 12:15 PM
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

BYprodriver 03-27-2012 02:08 PM
Quote:
Originally Posted by jaykay (Post 284174)
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.

Brad Roberts 03-27-2012 03:12 PM
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

Brad Roberts 03-27-2012 03:19 PM
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

Brad Roberts 03-27-2012 03:26 PM
Found it.. I did have it :)

3.2 Boxster S

http://986forum.com/forums/uploads01/3+21332890760.jpg

Brad Roberts 03-27-2012 03:30 PM
Boxster 2.7


http://986forum.com/forums/uploads01/2+71332891021.jpg

jaykay 03-27-2012 04:57 PM
Thank you for the information gentlemen!

Jake Raby 03-27-2012 05:14 PM
I'll post a plot from my cam doctor tomorrow.

Brad Roberts 03-27-2012 05:33 PM
Too funny,

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


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