TwinTurbo.NET: Nissan 300ZX forum - probably....
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Subject probably....
     
Posted by gt300zxtt on August 05, 2008 at 11:48 AM
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In Reply To So you're saying it's normal? (n/m) posted by bliZard on August 05, 2008 at 07:34 AM
     
Message depends on the specific car to be sure though. just comparing it to others with out all of the facts will not work. in this case, you should analyze rotational inertia and angular momentum as a function of mass. if you have a stock z with stock clutch, stock flywheel, stock crank pulley, then it would take longer for the engine to spin to higher rpms as well as take longer to decelerate. if there was a lightweight flywheel and lightweight crank pulley, then the engine will accelerate to higher rpms quicker and also decelerate proportionally quicker.

or, i could relate it to helicopters. a jet ranger has heavy rotor blades with centers of mass towards the outer tips which equates to high rotational intertia. they are designed this way so that when the engine quits and you are autorotating toward the deck, you will have plenty of rotational intertia to cushion the landing. if the rotor blades had lower rotational inertia, then there would not be as much energy to convert to cushion the landing.......it depends on how the specific system is designed..... everything has pros and cons.

     
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