VQ37VHR goodness
#41
Originally Posted by THX723
You're getting ahead of yourself there w. the EVTC. The mechanism still works in the same fashion as it's hydraulic cousin. From the outside, it even looks virtually the same. Both are still part of the cam sprocket and driven by a chain. The service manual does show the range of operation to be comparible to the hydraulic variant. Parasidic loss is not an issue in regards to how these VTC work. I'm not certain why Nissan's chose to retrofit the hydraulic unit with the electromagnetic unit on only the exhaust end. It could be for tighter control to better stay withing emission standards.
Will
#42
More details of how the VVEL actuation system works revealed. After studying the diagrams I'm fairly confident I have the actual movement figured out. Whoever came up with this one was definitely thinking out of the box.
Last edited by THX723; 03-31-2007 at 11:45 PM.
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