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New Lightweight Flywheel

Bass Junky
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ferni Grand Master

ferni

Posted
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benm - there is a video of a mines GTR going around the track driven by jap drivers going "holly shittt this is fast" "too fast"

the response on it is crazy... That car has a lightweight drivetrain...

ie light wheels, light flywheel, carbon propshaft etc.. anything in the drive train lightened to help increase response

i also remember sydneykid and someone else talking about the benifits of lightening certain parts of your drivetrain, and what benifit each has - its in here somewhere :P

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Bass Junky Grand Master

Bass Junky

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Roy.

by more "Race" I mean that when you change gears, the revs drop quicker, and whe you get on the gas, there isn't any surge from the engine which previously had to slow to match the road speed.

It's a bit hard to understand, but it does sound much cooler.

FURTHER REPORT

In wet weather, once the car breaks traction, the revs rise heaps faster, so you have to be a little bit more alert; but they also drop quicker, so removing your foot from the pedal stops the qheels spinning heaps quicker also.

BASS OUT

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  • 2 weeks later...
bean_8044 Rookie

bean_8044

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I dont think you can see much of a difference if you could lighten up the auto flywheel. The auto flywheels arent like manuals since theyre just mounting points for the torque convertor and ring gear. The torque convertor by itself is very heavy and on top of that its filled with ALOT of fluid.

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2rismo Grand Master

2rismo

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One problem with the flywheel is it is only around 8mm thick at the clutch face so it overheats very fast so be careful what you use your car for.

Do you know whether certain materials are better than others in this regard? i.e. Chrome-molly, Billet Steel etc?

Adrian

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rev210 Grand Master

rev210

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Do you know whether certain materials are better than others in this regard?  i.e. Chrome-molly, Billet Steel etc?

Adrian

A single billet flywheel is going to be very strong and not significantly effected by heat vs it's strength. A multi material flywheel like the one shown might have issues with different expansion rates but, the few race aluminium ones that I have seen never had a problem.

The chromemolly ogura 4.8kg is 400% stronger than the factory cast iron one.

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