02-01-2009, 03:59 PM
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#3 (permalink)
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A True Z Fanatic
Join Date: Nov 2008
Location: Miami
Posts: 6,403
Drives: '09 370Z
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Quote:
Originally Posted by semtex
I've been driving around this weekend with SynchroRev turned off (as I do like to heel & toe just for the pleasure of it) and I got to thinking that the 370 could use a lighter flywheel. But then I started to wonder -- how exactly does SynchroRev work? More specifically, is the weight of the stock flywheel programmed into the computer algorithm that determines how much to blip the throttle in order to achieve the correct revs? If so, then won't getting a significantly lighter flywheel screw up SyncroRev Match? Because any given amount of throttle will rev a lighter flywheel higher than a heavy one. Any thoughts? Anyone understand the technical intricacies of how SynchroRev Match works?
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Its very funny that you put this thread up. I mentioned this to DDM earlier in a PM. I thought about the same thing you did, however I had a different take on it. I have no technical information about this, but if you ask me... I think I remember hearing in the Nissan videos that the car uses throttle position, sensors in the shifter and speed and G sensors to calculate the optimal RPM. I think it just blips the throttle and gets it to a predetermined RPM (as a function of data from the sensors) rather than taking the weight of the flywheel into account. If I'm right, a lighter flywheel would mean even quicker rev matches. If you think about it from Nissan's point of view, its much easier to calculate the necessary RPM's and then just say "100% throttle until you reach that RPM, then hold and revise every millisecond using data from the sensors"
Last edited by RCZ; 02-01-2009 at 04:08 PM.
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