[ma61turbo]

I know there are probably a few around here with lightened flywheels. How do you find them?

I need a new clutch, and was thinking about just going with something like the RPS Stage 2 from MVP, but now that the car isn't daily I've been thinking about going to a lightweight wheel. The rattling I'm not concerned with overly much, moreso the benefits. Is it worth it? I've not had any experience with lightened flywheels so not really sure how they compare. Obviously they are significantly lighter than OEM but not really sure how noticeable the effect from this is going to be.

Thoughts, suggestions?

Going to a lightened wheel means I'm probably going to have to go to a more button/puck style clutch setup. Again, not fussed with this, had a brass button clutch in my old ma61 and that was very much on/off and I used to drive that as a daily!

[LJZ]

Perfomance wise I think they are a very good investment, I have a lightened flywheel and It does rev up quicker. Even though I dont drive mine that much the rattle is VERY annoying. Have you ever driven or been passanger in a supra with a lightened flywheel to hear/feel the rattle. It is pretty bad.
Usually when I am sitting at the lights my foot is on the clutch because if im in nutral everybody from all sides of the intersection look at me funny thinking my gearbox is about to explode.
Once the engine revs up the rattle goes away.
If I see you out at the next meet or whatever I will get you to take mine for a drive to see yourself.
Hope this helps, im not trying to discourage, they are a good thing to have. Just prepare for the rattle

[ma61turbo]

LJZ, on 11 April 2011 - 01:22 PM, said:

Perfomance wise I think they are a very good investment, I have a lightened flywheel and It does rev up quicker. Even though I dont drive mine that much the rattle is VERY annoying. Have you ever driven or been passanger in a supra with a lightened flywheel to hear/feel the rattle. It is pretty bad.
Usually when I am sitting at the lights my foot is on the clutch because if im in nutral everybody from all sides of the intersection look at me funny thinking my gearbox is about to explode.
Once the engine revs up the rattle goes away.
If I see you out at the next meet or whatever I will get you to take mine for a drive to see yourself.
Hope this helps, im not trying to discourage, they are a good thing to have. Just prepare for the rattle

Hah, yeah I did hear it the other day but I didn't really think it was that bad? I think Kim's clutch rattle was worse. I was actually looking at the RPS flywheel rather than the Fidanza(you have this one right?) which is apparently a bit quieter.

That'd be great mate, would be interesting to feel the difference.

[LJZ]

It has its good and bad days funny enough. Hot and cold also make a difference, it tends to be between a certian rev range. If my lights are on or A/C it puts more load on the motor and then its louder.
I am pretty sure I have the Fidanza as I hear this is the noisy one, cant be sure though because it was the owner before the previous one that had it fitted. Unfortunatly the guy I bought it from didn't take much note of mods from the previous owner. When I get to upgrade the clutch I will be sure to take a look and find out what it is.
Next club thingo just remind u can go for a spin, see 1st hand.

[--Golli]

I'm hoping I will be corrected here, but when you go a lightened flywheel, dont you need the whole rotating assembly of the motor re-balanced?
I seem to remember reading something about it, and no, I haven't got this mixed up with the harmonic balancer, I'm just hoping that I'm completely wrong!

Luke, post up what flywheel you got. I'm looking at the Fidanza one for my car when I upgrade my clutch in the near (hopefully) future.

Great thread to start Ma61, think there will be alot of usefull information to come.

[LJZ]

--Golli, on 11 April 2011 - 09:10 PM, said:

I'm hoping I will be corrected here, but when you go a lightened flywheel, dont you need the whole rotating assembly of the motor re-balanced?

Do you think maybe this is the cause of the rattle?

--Golli, on 11 April 2011 - 09:10 PM, said:

Luke, post up what flywheel you got. I'm looking at the Fidanza one for my car when I upgrade my clutch in the near (hopefully) future.

As I said in the previous post I never found out what flywheel I had. The previous owner (Lincoln) didn't get the info off his previous owner (Andrew). I will msg Lincoln today and see if I can get Andrews details and give him a call to see what flywheel he had put in and weather he got it balanced as you suggested.

Very interesting thread indeed. I wish I could have found something like this when I wanted to find out what was wrong with mine. Hopefully many future supra owners benifit from it.

[ma61turbo]

--Golli, on 11 April 2011 - 09:10 PM, said:

I'm hoping I will be corrected here, but when you go a lightened flywheel, dont you need the whole rotating assembly of the motor re-balanced?
I seem to remember reading something about it, and no, I haven't got this mixed up with the harmonic balancer, I'm just hoping that I'm completely wrong!

Luke, post up what flywheel you got. I'm looking at the Fidanza one for my car when I upgrade my clutch in the near (hopefully) future.

Great thread to start Ma61, think there will be alot of usefull information to come.

I don't think so, at least I've not ever heard of that being needed as far as the 2jz/v160(1) is concerned. I might Google and see what I can find.

[ma61turbo]

LJZ, on 12 April 2011 - 07:35 AM, said:

Do you think maybe this is the cause of the rattle?

The rattle is a Getrag thing. The OEM flywheel is dual-mass whereas lightened flywheels are a single mass design. The dual-mass OEM was used purely because it eliminates the rattle that the Getrag has. Has nothing to do with balance issues or anything like that.

Quote

As I said in the previous post I never found out what flywheel I had. The previous owner (Lincoln) didn't get the info off his previous owner (Andrew). I will msg Lincoln today and see if I can get Andrews details and give him a call to see what flywheel he had put in and weather he got it balanced as you suggested.

Very interesting thread indeed. I wish I could have found something like this when I wanted to find out what was wrong with mine. Hopefully many future supra owners benifit from it.

Hopefully. Perhaps a good candidate for a visible to Google but invisible to guests thread ;)

[LJZ]

I heard back from the previous owner. You were right mate it was the Fidanza Lightened Flywheel for 1993-98 Supra Twin Turbo. Noisy bastard

For those who dont know it here is the linkto MVP where it can be purchased

And the info on it;

http://www.mvpmotorsports.com/Merchant/ff_1.jpg

Fidanza Lightened Flywheel for 1993-98 Supra Twin Turbo
Part # FF 130661
Why should you spend the money on a lightened flywheel? There are numerous reasons that justify the expense. Your Supra will see an increased level of performance from more usable horsepower and torque throughout the RPM range. Why? Basic physics! Your 36 pound Toyota OEM flywheel is about 21 pounds heavier than a lightweight flywheel such as this Fidanza. The more rotating mass (the term for any object on your car that moves likes wheels, crank pulley, or flywheel) your car has the more power that is used by the motor to turn this mass. So if you lighten this weight your engine is more efficient and is able to get more of the power it is making to your wheels.

You will also see a quicker revving motor due to the lighter rotating mass. On a turbo car like the Supra this also equates to a quicker spooling turbo or turbos, and we all know how much we want less turbo lag! A lighter flywheel also reduces the stress on your drivetrain, thus extending its service life & saving you money.

All Fidanza flywheels are CNC machined. It is made from either 6061 T6 or 2024 T3 aluminum, depending on the model. Both materials are tempered aluminums which are very strong yet still very lightweight. The friction surface is made from 1050 high carbon alloy steel. It is durable for just about any clutch disc material, from organic to Kevlar to sintered iron. The friction surface is attached using either aerospace nuts and bolts or 304 stainless steel rivets depending on the application. All the ring gears are heat treated for durability. They are heated, pressed on and then secured using grade 10 fasteners. Fidanza has quickly become known as the bang-for-your-buck flywheel choice.
MSRP $499.00
Your Price $379.00

[Yiros]

Darren and I have the TRD twin plate clutch with TRD lightened flywheel.

These are probably one of the best kits you can buy for a Supra. Power rating up to 580kw but very driveable once bedded in.

Downside – these have now been discontinued. :angry:

Rattle isn't too bad in mine - mind you my gearbox has been pulled a part a few times and is like new on the inside.

Rattle does get a little worse when the A/C cycles on - but you soon learn to love it!

[LJZ]

Yiros, on 12 April 2011 - 05:57 PM, said:

Rattle does get a little worse when the A/C cycles on - but you soon learn to love it!

I love it, sounds like power haha.
Most people are all :puke:

[97SUPRA]

I bought an "Xtreme" clutch and lightened chromolly flywheel. Can notice the difference, the motor just feels a bit freier. That is the best way I can explain it.
John at S Hi Tech Dyno uses them and they are the biggest clutch supplier in Australia or Austrilasia.. Cant remember..
My clutch feels very direct and is lighter than stock.
John said it will handle 300 + rwkw all day long with no issue. Not too sure what its rated at but must be over that if it can do that all day long.
Clutch rattle happens 75% of the time when stopped and always under low amounts of tourque but not too loudly. Depress the pedal when going through maccas drivethrough whilst the hot chick is handing you your greasy burger and the rattle subsides. :wub:
The feel is as I said lighter than stock you have about 1.5 to 2 inches from clutch fully dis-engaged to fully engaged, feels a bit more touchy than stock for this reason.Shudders very slightly when slipping it at moderate revs. High and low revs are smooth.
Cost was $1700 for the whole kit.

www.xtremeclutch.com.au/

[ultra_supra]

^ so my eXtreme clutch plate for sale is a bargain at $200 ;) --> http://www.sasupra.c...or-serious-use/

I ran the six-puck single plate with a standard flywheel and it rattled a bit.

I'm now running an OS Giken twin plate and it rattles a lot more... :crazy:

[97SUPRA]

Sounds a bit more hardcore than mine...? Although supporting simular power. If I wasn't impatient and looked around I'd have bought this and just got myself a new flywheel!!

[ma61turbo]

Yiros, on 12 April 2011 - 05:57 PM, said:

Darren and I have the TRD twin plate clutch with TRD lightened flywheel.

These are probably one of the best kits you can buy for a Supra. Power rating up to 580kw but very driveable once bedded in.

Downside – these have now been discontinued. :angry:

Rattle isn't too bad in mine - mind you my gearbox has been pulled a part a few times and is like new on the inside.

Rattle does get a little worse when the A/C cycles on - but you soon learn to love it!

MVP still list the twin plate clutch on their website, a bit overkill for my needs at the moment though and pretty expensive!

Did a bit of additional research yesterday and it seems that the rattle is pretty much the only real downside to these things. There are other issues that I'd consider minor in that due to less inertia and quicker engine slow down, going up hills may mean dropping down a gear if revs are too low but apart from that...

Now tossing up whether I go with a mild clutch and OEM flywheel or more aggressive clutch with lightened flywheel. At the moment I have no real need for an overly aggressive clutch as I'm not developing *that* much power. However, that will probably change over the next few years and I don't want to find myself in a position where the clutch won't hold the power I'm wanting. Argh.

[SPRAGRL]

I bought an Exedy Performance clutch from a guy in Sydney off the national froum few months ago and its been sitting on top of the fridge til i get a flywheel...... Ill hunt around and add to this when ive found one :)

[ma61turbo]

SPRAGRL, on 13 April 2011 - 02:47 PM, said:

I bought an Exedy Performance clutch from a guy in Sydney off the national froum few months ago and its been sitting on top of the fridge til i get a flywheel...... Ill hunt around and add to this when ive found one :)

There's plenty of options, but if you have the clutch already that'll pretty much determine whether or not you go with an OEM or lightened. Is the clutch solid centre or sprung? If solid you need OEM flywheel, if sprung you don't want OEM. There are issues if you run sprung with OEM or solid with lightened, although I can't remember off the top of my head what they are.