It partly depends on how light the flywheel is. I ran an aluminum flywheel
at one time that was only 6 lb (stock is about 20, I believe). It did
accelerate very quickly once you were under way but it was hell on the
street. It didn't have enough mass to pull the car off the line smoothly. I
developed a pretty sensitive left foot driving that thing. Even so, the
friction facing on the flywheel wore out in about two years. It was an
all-aluminum flywheel with a plasma-spray facing.
I now have an 11.5 lb Tilton aluminum flywheel in the car and I like it a
lot, but my driving style leans much more towards the "vigorous" than most,
so I'm willing to accept the penalties. It is also a steel insert in an
aluminum flywheel, so it will be more durable at the penalty of higher
weight.
> -----Original Message-----
> From: owner-datsun-roadsters@autox.team.net
> [mailto:owner-datsun-roadsters@autox.team.net]On Behalf Of Bryan Martin
> Sent: Saturday, August 23, 2003 11:31 AM
> To: datsun-roadsters@autox.team.net
> Subject: Aluminum Flywheels
>
>
> Hello List,
>
> There has been some talk going on lately regarding aluminum
> flywheels? I've been considering one of these for my U20 but
> wanted to see
> if anyone has any comments regarding the good/bad. As I
> understand it, you
> get much quicker acceleration with an aluminum flywheel. Besides the
> obvious safety considerations, are there any performance
> drawbacks to using
> one of these?
>
> Any input would be appreciated.
>
> Thanks,
> Bryan
> '69 Solex 2000
> 67.5 1600 restoration
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