lightweight flywheel differences

**Felix** · 14-03-2006 12:53 PM

From peoples experiences which lightweight flywheel is better for street use with a HD Exedy Organic clutch? Spoon (4.6kg) or Toda (4.1kg)?
Will the half a kg make any difference in the performance?
I'm decideing between these 2 for my DC2, they are both the same price so thats not a factor.

**Chris_F** · 14-03-2006 01:44 PM

i have a 4.7kg and exedy organic hd clutch, theres a very noticeable improvement in accleration/engine responsiveness. 1st gear in particular, theres a really big difference in pick up and youll notice it for sure, but it depends on how light your original was to how much of a difference you notice. My stock fly + clutch combo weighed 16kg and the replacemnt parts came in at 9kg so that may be a reason why i felt such a big change.

for street use, personally id go with the 4.6kg.. 500grams isnt a huge difference but ive noticed already that with a hd clutch and 4.7kg flywheel taking off becomes less smooth and is "just" comfortable for street. Because the clutch becomes more on/off with a hd clutch and the flywheel is lighter stop start traffic can become a bit annoying with the on/off jerky feeling this combo can give..

totally worth it though man go.. so 4.6kg for street IMO

**Felix** · 14-03-2006 01:47 PM

Thanks mate, yeah my stock flywheel is around 9kg for a DC2 vtir i believe.

**Chris_F** · 14-03-2006 02:17 PM

no worries.. damn thats a heavy stocker, your car is really gonna come alive after the flywheel is isntalled.

**TODA AU** · 14-03-2006 02:49 PM

Originally Posted by Felix

From peoples experiences which lightweight flywheel is better for street use with a HD Exedy Organic clutch? Spoon (4.6kg) or Toda (4.1kg)?
Will the half a kg make any difference in the performance?
I'm decideing between these 2 for my DC2, they are both the same price so thats not a factor.

The SPOON flywheel is a factory style flywheel.
The extra 500g is quite significant when you measure the inertia of the flywheel.
& it's the reduction in inertia that offeres the greatest benifit.

A visual common sense look at the situation shows this quite simply.
Note: The SPOON flywheel is of the same style as the OEM unit.

That is, the flywheel maintains solid material from centre to outer edge.
To reduce the weight, the flywheel becomes thin & can warp if the clutch is ridden heavily.

The TODA unit by comparison is not cast & machined from chromemolly.
Not only is the material strength superior, the design is also superior.

By removing mass from the outer area by use of holes, the inner drive area maintains it's thickness thereby increasing it's strength.
So using the TODA unit, you achieve less inertia, less total weight & higher strength, both through design & material selection.
It is designed specifically for the sports street driver & has no negative side effect.

**Felix** · 14-03-2006 03:09 PM

Thanks Adrian, but those extra holes in the toda fly would have to make it weaker and more prone to warping in some way or form...

EDIT: actually i just re read your post and it now makes sense. The spoon fly is made thinner to reduce weight and therefore warps easier, the toda fly reduces weight by haveing the holes while keeping the material thicker, therefore stronger... Is this correct?

**bennjamin** · 14-03-2006 03:20 PM

Originally Posted by Felix

Thanks Adrian, but those extra holes in the toda fly would have to make it weaker and more prone to warping in some way or form...

EDIT: actually i just re read your post and it now makes sense. The spoon fly is made thinner to reduce weight and therefore warps easier, the toda fly reduces weight by haveing the holes while keeping the material thicker, therefore stronger... Is this correct?

as adrian said -

The TODA unit by comparison is not cast & machined from chromemolly.
Not only is the material strength superior, the design is also superior.

the toda unit is forged , where the spoon item is cast.

**Weq** · 14-03-2006 03:48 PM

i run an act streetlight. never had a problem, good upgrade for a NA car. revs alot faster! just close urself to the JDM market. US provides alot of quality products - most of which are still made in japan.

come in 5.4kg and 3.9kg

ACT Prolite Flywheel Features:

- Premium quality
- Forged chrome-moly steel
- CNC machined to exact tolerances
- Precision balanced
- Induction hardened integral ring gear
- Stronger than cast iron, billet steel or aluminum
- Durable and thick enough to be surfaced
- Certified SFI specification 1.1 - Legal for racing

edit:
can be had for under $400aud shipped (speak to jimmeh)

**Felix** · 14-03-2006 03:52 PM

think the toda unit wins hands down.

**Chris_F** · 14-03-2006 04:32 PM

yep the toda design is good

i simply went for the jdm dc5r flywheel on my euro, but in a case where you have to go non-oem stick to the brands you know you can trust.. i think its important that a flywheel have guaranteed structurial integretity like that of toda, honda oem and spoon etc

**Felix** · 14-03-2006 05:15 PM

^ yep thats why i narrowed it down to Toda or Spoon

**shebangs** · 14-03-2006 05:20 PM

Can someone please tell me how the TODA 4.1KG Flywheel and the HD Exedy Organic clutch (or maybe another sports clutch) will change the characteristics of my car? I know it'll rev harder (i ride a motorbike so I know how it revs hard and also loses revs fast) - but what else changes? Will I still be able to chirp into second? What about 2nd to 3rd? What about at lower revs? Does the car stall easier (girlfriend driving it stalls it enough as is..) etc.

Thanks,
Matt