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Old 06-07-2014, 04:07 PM   #1
mattmoz
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Fly Wheel?

I plan on getting a stage 2 clutch soon and was wondering if a lite weight fly wheel is worth the extra cost ? I plan on keeping my car as a DD its got bolt ons and a tune and it might see a couple auto-x events but mostly street, would it be worth the 400 or so or just resurface the stock one?


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Old 06-12-2014, 09:01 AM   #2
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Depends on what you want. since there is less mas it does rev faster (with no load). and revs do drop faster (none of these were actually measured so just may be placebo effect).

A light weight flywheel does at chatter in first gear. Also is less forgiving in gear changes IMHO since there is less stored energy in the flywheel when you drop the clutch it does behave differently. not sure if there is a better or worse...

I would save the $400.... then save another $400 and then get a LSD put in the transmission over a light weight fly wheel.

I would only do the flywheel once other things have been done. Auto-X events you typically stay in a single gear if the track is set up right so no need to worry about shifting.

I would say stay with the stock. $400 could go to cam gears and a dyno to tune them in and get you better returns.
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Old 06-14-2014, 08:27 PM   #3
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that's kinda what I am leaning towards
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Old 06-14-2014, 09:15 PM   #4
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Ford Probably designed it that weight for a reason. A great and maybe better alternative is when you put in a new clutch, have a a machine shop resurface , balance, and lighten your old one. Then it won't be too light but it will have a good surface and be we balanced.
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Old 06-14-2014, 11:59 PM   #5
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its likely that the quality of steel needed and machined was cheaper then doing a lighter weight version. its likely all cost.

The aluminum fly wheels are just as "easy" to get "resurfaced" i.e. new friction plate installed. I would not trust having a shop ( and likely wont be able to find one to do it) lighten a flywheel. there is stress both thermal and structural that is unique to each design I doubt you would fine someone who would touch a bit to the flywheel.

Why wheels dont get balanced on there own. When I did my motor work they balanced the whole crank, pistons and flywheel. they remove from the crank not the flywheel.

you have to think of cost and MPG. does going with a Aluminum flywheel cost less or improve MPG? if not that's why Ford did not go with it (not to mention 99.99% of people dont like to hear gear chatter)

lots of other likely upgrades for you before you see any return on adding a lighter flywheel.
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Old 07-23-2014, 11:41 AM   #6
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I could see a difference in my car with the aluminum flywheel coming off the corner but it was hurting me going in the turn.so I took it off my race car...good for drag and street but not for circle track
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Old 07-23-2014, 01:40 PM   #7
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why do you think it was hurting you going into the turn?
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Old 07-23-2014, 02:10 PM   #8
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It let my rpms drop to much..stock flywheel will keep the rpms while I'm going thru the turns.i am nascar division v national points leader state points leader and track points leader with my ford focus.
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