12-20-2011, 10:25 PM
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#29 (permalink)
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A True Z Fanatic
Join Date: Dec 2009
Location: 03350 Australia
Posts: 1,516
Drives: 09 Nissan 370Z M6
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Quote:
Originally Posted by HKYStormFront
yea thinking about it now, it would actually surprise me if they used a VQ37VHR motor to do a race car build. the VVEL system really adds a lot of heat to the oil. it would almost be counter productive compared to the oil cooling system needed for a straight up race car. i guess it could be done but it makes sense to use the simpler motor if it makes the power needed more reliably (in theory)
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Your are correct re VVEL ... that's why a VQ37 block/crank/rods with the VQ30 heads is a good idea as these heads don't have VVEL, but the earlier style varable valve timing only. Details are on the NISMO JP website. They even offer cams actuators with more aggressive ramp angles to increase the valve overlap.
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