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Lightened Flywheel or No?

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Old 12-23-2002, 10:35 AM
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Default Lightened Flywheel or No?

I am close to buying a clutch for my car and am prolly gonna go with the centerforce dual friction clutch. Does it pay to go spend the cash on a lightened flywheel or will the stock one do the job just as well. I have heard that a lightened flywheel is only usefull on dynos and that it doesn't make a big difference. What are you guys opinions on the subject? And what brand of flywheel would you recomend?

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Jeremy

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Old 12-23-2002, 10:40 AM
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Default Re: Lightened Flywheel or No?

If you plan to drag race do NOT get a lightweight flywheel. The lower weight will cause the car to bog when you let the clutch out. Think of it this way. A heavy mass that is rotating is a lot hard to stop then a lower weight one. You won't get as much bog with the stock flywheel.
Old 12-23-2002, 02:26 PM
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Default Re: Lightened Flywheel or No?

I'm going to go to an aluminum flywheel when I change my clutch but I don't drag race. As AZ28driver stated, if you drag race its not the best mod but for anything else (where the launch is not a big deal) it will help.
Old 12-24-2002, 09:34 AM
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Default Re: Lightened Flywheel or No?

Thanks for the replies guys. I do drag occasionally so I will go with the stock flywheel. Can I just take it in to be turned or should I buy a new one?
Old 12-24-2002, 10:10 AM
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Default Re: Lightened Flywheel or No?

If it were me I would just buy a new one. I don't believe they are that outrageous in price.
Old 12-25-2002, 01:01 PM
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Default Re: Lightened Flywheel or No?

I love my fidanza, i know it does not launch as good. But when racing in the street tire class it works great. You have less tendency to break the tires loose on launch. I love the way it sounds to.
Old 12-26-2002, 08:38 PM
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Default Re: Lightened Flywheel or No?

Or change your launch RPM (higher) and you may have to play with tire pressure at the strip.
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Old 12-27-2002, 03:59 AM
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Default Re: Lightened Flywheel or No?

try a billet steel flywheel, not as heavy as stock, not as light as aluminum.
Old 12-27-2002, 02:15 PM
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Default Re: Lightened Flywheel or No?

i had my stock flywheel resurfaced when I did the clutch. It only cost me $35 and it holds and works fine no gripes here.
Old 12-30-2002, 11:20 AM
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Default Re: Lightened Flywheel or No?

would it just be silly to put a light flywheel on an a4?
Old 12-30-2002, 05:43 PM
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Default Re: Lightened Flywheel or No?

The 2002 service manual says that the flywheel is not to be machined. Apparently the contact surface is slightly tapered.
Old 12-30-2002, 11:20 PM
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Default Re: Lightened Flywheel or No?

Mega thump, did you just ask that question?? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">would it just be silly to put a light flywheel on an a4?
</font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Your cat jumped on the keyboard right?
You don't use flywheels on a A4 at all. You just have a Flexplate, i think that is what it is called.
Old 12-31-2002, 12:51 AM
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Default Re: Lightened Flywheel or No?

The torque converter acts as a flywheel.
Old 12-31-2002, 07:25 AM
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Default Re: Lightened Flywheel or No?

The surface can't be tapered or the disc would never seat. I believe they say do not resurface because of the release point on the clutch and the fact that grinding the wheel moves the clutch further away from the release bearing, limiting the travel of the bearing.

As for the light flywheel, see this post:

https://ls1tech.com/ubb/cgi-bin/ulti...c;f=2;t=004178

Happy New Year all!
MN
Old 12-31-2002, 09:52 AM
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Default Re: Lightened Flywheel or No?

DOH
In my own defense I'm coming from a manual and getting ready to slap in an automatic. Probably doomed. I just was thinking minimal weight,super fast rev ups...huge stall, 4:10s, ultralight flywheel..looseness would go by so quick you would hardly notice it except for the pitiful squeel of roasting tires.
Starter needs to spin something..
thanks for the scoop guys.
Old 12-31-2002, 02:28 PM
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Default Re: Lightened Flywheel or No?

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif"> just was thinking minimal weight,super fast rev ups...huge stall, 4:10s, ultralight flywheel..looseness would go by so quick you would hardly notice it except for the pitiful squeel of roasting tires.
</font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">you meant to say losers right?? Just put a stall on it, using the biggest is not always the best, you need one suited to your driving and track use and times, as well as 4.10 may not be as big of help as you think, any time you want you can race me though, i love competition. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
Old 01-03-2003, 01:43 AM
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Default Re: Lightened Flywheel or No?

Auto trannys are more responsive with a heavy flexplate.
I don't know if they make one for our cars, but they are popular with the 'old school' racers.
Dave



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