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gianttomato
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Re: Lightened fly wheels?? what your thoughts Sun, 02 March 2003 02:18 Go to previous messageGo to previous message
Sounds like we are basically saying the same thing, just that there are some basic definition issues.
A heavier flywheel has more stored energy, so when you take off from a standing start, this stored energy is released making take off easier. A lighter flywheel has less stored energy, so there is a slightly greater propensity to stall the car. The engine doesn't magically make more or less torque depending on flywheel weight.
EDIT: I should add that this release of stored energy occurs with any sudden change in load. It just so happens that this for most people is seen most strikingly on take off, so people believe it improves low end performance. In fact it will occur at any rev range. An example might be a short upwards incline. A car with a heavy flywheel might make it up the hill in fourth gear (due to the release of potential energy in flywheel), but the same car with a light flywheel may need to change down a gear half way up. The point I want to make is that this effect will be seen with any sudden change of load.

I'm all for lightweight flywheels, but they have to be done correctly. People generally rapidly adapt their driving style to suit and it becomes a non issue.
I never intended for a slanging match. Smile

Cheers Dave.

[Updated on: Sun, 02 March 2003 02:29]

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Read Message   Lightened fly wheels?? what your thoughts BlazeFri, 28 February 2003 02:41
Read Message   Re: Lightened fly wheels?? what your thoughts gianttomatoFri, 28 February 2003 02:46
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