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-   Suspension, Brakes, Drivetrain (https://www.miataturbo.net/suspension-brakes-drivetrain-49/)
-   -   Noob question on Fidanza flywheel? (https://www.miataturbo.net/suspension-brakes-drivetrain-49/noob-question-fidanza-flywheel-46445/)

na8psi 04-19-2010 08:18 PM

Noob question on Fidanza flywheel?
 
Just picked up a used fidanza flywheel for my 1.8. Also, picked up an ACT HD clutch kit. New to lightweight flywheels for the most part so I'm just curious, why are the steel faces replaceable? Do you have lightweight flywheels machined like regular/OE flywheels or is that what the replaceable face is for? Tried doing some research on this to no answer, just found thousands of places and forums to buy them.

Inform please?

nicacus 04-19-2010 08:48 PM

It's so you dont have to take it to a machine shop to get it resurfaced.

[martha stewart] It's a good thing [/martha stewart]

P.S
It says that right on their website

NA6C-Guy 04-19-2010 08:48 PM

The friction rings are only good to be resurfaced a few times, and having them replaceable allows you to swap it when its too worn.

na8psi 04-19-2010 09:50 PM

Ahh ok, well buying this used from a person/car I have no prior history of, I figured it was best to have it machined but from the 2nd poster's opinion I don't need to? Surely I shouldnt just throw it back in with the new clutch and figure all is well correct? I just know from my commercial side of all this is that when we do a clutch job or for any reason take loose a flywheel we send it immediately to the machine shop for machining if applicable. Being an aftermarket lighweight hence be the reason I figured I would ask some more performance experienced minds.

cueball1 04-20-2010 12:26 PM

They can be machined. A used one SHOULD be machined before it's installed unless there isn't enough face left to machine. New friction plates are about $50. If machining costs about the same, just buy new.

RotorNutFD3S 04-20-2010 02:03 PM

I found out the hard way that there were two different friction rings for the Miata Fidanza flywheel, an 18-bolt and a 20-bolt. Make sure you get the right one if you get a new one. In fact, I have an 18-bolt ring, still brand new in the plastic, I think it even has new mounting hardware, that I'd ship to you for $45.

na8psi 04-20-2010 03:00 PM


Originally Posted by RotorNutFD3S (Post 559209)
I found out the hard way that there were two different friction rings for the Miata Fidanza flywheel, an 18-bolt and a 20-bolt. Make sure you get the right one if you get a new one. In fact, I have an 18-bolt ring, still brand new in the plastic, I think it even has new mounting hardware, that I'd ship to you for $45.

Damn awesome, if it doesnt sell Ill be getting that from you! Anybody describe driving on one? Never owned/drove a car with a lightweight flywheel

mikewolf 04-20-2010 03:27 PM

I love my fidenza in my na 1.8. It transforms the car.

RotorNutFD3S 04-20-2010 03:39 PM


Originally Posted by na8psi (Post 559278)
Damn awesome, if it doesnt sell Ill be getting that from you! Anybody describe driving on one? Never owned/drove a car with a lightweight flywheel

It's just sitting in my garage. Let me know when you want it and I'll send you my PayPal information.

nicacus 04-20-2010 03:40 PM

The revs fall a bit faster, and it revs more responsively.

You'll also get lots of tranny noise any time you engine brake.

Slydways91 12-07-2010 10:00 PM

i have this flywheel in my 1.6L and i love it, got it used with my first Miata and replaced the friction surface when i changed the clutch. I also have an ACT HD clutch kit in there. I love how quickly the engine revs, but when downshifting you def. gotta blip the throttle to keep the rpms up for a smooth shift. I feel it's worth the money.

greeenteeee 12-08-2010 03:23 PM

What do you guys think of using the Fidanza fly with an OEM clutch/PP? I don't want extra stress on the clutch hydraulics (had to replace CMC and slave once, and read of other ppl having to replace them every 3 months or so). I was going to use Clutchnet's organic unsprung w/ an OEM PP, but have also read bad things about Clutchnet, which makes me just get an OEM clutch. Stock 1.6L power, probably don't need much more... I do go to the track though, but the clutch I have in there now takes the track abuse just fine.

Savington 12-08-2010 03:34 PM

I'm running an ACT HD/street on a 10lb Fidanza in the rental and it's awesome. I am actively looking for a 1.6 version of the same clutch, though, so I can swap the flywheel with the 7lb version sitting in the garage.

y8s 12-08-2010 03:48 PM


Originally Posted by Savington (Post 666602)
I'm running an ACT HD/street on a 10lb Fidanza in the rental and it's awesome. I am actively looking for a 1.6 version of the same clutch, though, so I can swap the flywheel with the 7lb version sitting in the garage.

what you need is the 7.25 version of the fidanza and a lightly used twin plate clutch... wink wink.

greeenteeee 12-08-2010 04:55 PM


Originally Posted by Savington (Post 666602)
I'm running an ACT HD/street on a 10lb Fidanza in the rental and it's awesome. I am actively looking for a 1.6 version of the same clutch, though, so I can swap the flywheel with the 7lb version sitting in the garage.

My intended setup was in hopes to use the Fidanza 1.6L fly you are (were?) selling. Looking for a close to OEM pressure plate so as not to stress out the slave and master cylinder too much-- or is this something I shouldn't worry about?

Originally Posted by greeenteeee (Post 666594)
I was going to use Clutchnet's organic unsprung w/ an OEM PP, but have also read bad things about Clutchnet, which makes me just get an OEM clutch.

Stock 1.6L power, probably don't need much more... I do go to the track though, but the clutch I have in there now takes the track abuse just fine.



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