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4.08 gears and Lightened Flywheel

Originally Posted by Arrvaxx Why does weight affect noise? That's unexpected. Single piece flywheels rattle more than dual mass. The weight acts as a damper.

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Old 04-01-2014, 12:51 PM   #1 (permalink)
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Originally Posted by Arrvaxx View Post
Why does weight affect noise? That's unexpected.
Single piece flywheels rattle more than dual mass. The weight acts as a damper.
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Old 04-01-2014, 01:10 PM   #2 (permalink)
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Single piece flywheels rattle more than dual mass. The weight acts as a damper.
True but half The idea behind reducing the weight of the flywheel is that more torque will reach the wheels due to less rotating mass on the crank. Its just that most of the losses from crank power to wheel power occur in the gearing of the transmission itself. And your right the throttle response increase is due to the same reason because there is less weight on the crank. I notice it if the clutch is pressed the engine spools up quicker but again if im driving the time it takes to go from 2000 rpm to 7000 rpm probably hasnt changed. Idk for sure bc i havnt clocked it. All i really noticed is its sometimes annoying to start moving from a stop.
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Old 04-01-2014, 01:13 PM   #3 (permalink)
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True but half The idea behind reducing the weight of the flywheel is that more torque will reach the wheels due to less rotating mass on the crank. Its just that most of the losses from crank power to wheel power occur in the gearing of the transmission itself. And your right the throttle response increase is due to the same reason because there is less weight on the crank. I notice it if the clutch is pressed the engine spools up quicker but again if im driving the time it takes to go from 2000 rpm to 7000 rpm probably hasnt changed. Idk for sure bc i havnt clocked it. All i really noticed is its sometimes annoying to start moving from a stop.
I would assume the amount of power difference you'd see from a lighter flywheel would get swallowed up by dyno variation and air temp/density.
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