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Christ · 11-25-2008, 02:23 PM

adding to that -
Vtec isn't actually a separate cam profile... the cam has an extra lobe between the standard lobes, that is always riding on a rocker arm.

When Vtec engages, the solenoid fires up and it moves a lever in the head which engages the rocker that is riding on the larger cam lobe.

The cam doesnt shift positions, nothing of the sort happens.

11-25-2008, 02:23 PM	#37 (permalink)
Christ Moderate your Moderation. Join Date: Nov 2008 Location: Troy, Pa. Posts: 8,919 Pasta - '96 Volkswagen Passat TDi 90 day: 45.22 mpg (US) Thanks: 1,369 Thanked 430 Times in 353 Posts	adding to that - Vtec isn't actually a separate cam profile... the cam has an extra lobe between the standard lobes, that is always riding on a rocker arm. When Vtec engages, the solenoid fires up and it moves a lever in the head which engages the rocker that is riding on the larger cam lobe. The cam doesnt shift positions, nothing of the sort happens. __________________ "¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"