I am purchasing a lightweight flywheel in several days to mate with my clutchnet stage II clutch.

I have been pretty set on getting a Spoon flywheel, which is 9.24 pounds and chromoly steel. I haven't heard of anyone who has used this piece on a personal account, but I don't doubt Spoon's quality for a second.

After questioning a certain aftermarket parts dealer on the Spoon pricing, he recommended I go with the Toda for it is better quality.

This is what he told me:

"The difference is where the weight is removed. On the Spoon, the weight is shaved across the entire flywheel. On the Toda, the heft is left at the hub and the edges are drilled/balanced. Therefore, the Toda will actually spin faster even though weights are very close. As I said, both are nice, the Toda is nicer."

This sounds legitimate to me, but I might find myself spending more on the Toda ($450 compared to $360). Is it worth it to go with this over the Spoon?

Also, I am using this in a turbocharged application, so I don't want to go overly light. From what I know the Toda is right around 9 pounds or even less. What is the exact weight on it?

What flywheel should I go with?

 

i really dont think you can tell the difference b/w the 2 flywheels. toda is a little over 9lbs. also. if what that sales rep says is true then i dont think it will spin up that much faster than the spoon, at least for it to be very noticeable. what you will notice is the difference between the stock fw and your new fw.

i cant compare both flywheels; i only have the toda and i love it . it was great for n/a and once i finish my turbo install i'll let ya know how it handles FI.

to answer your question, if you dont doubt spoon then get it 'cause its less expensive.

 

from what i have heard the toda is the one you should stick with cause it doesn't give you the problem of hard start ups cause the teeth are just like the stock flywheel


[Modified by xlr8si, 9:04 AM 1/4/2002]

 

Yes, I have heard the whole discussion about various flywheels having trouble mating with the starter teeth. From what I heard, Toda passes the test. JUN fails miserably. Some other ones are questionable. I haven't heard about Spoon, but I guess I just assumed that it doesn't have starter teeth problems since I haven't heard any reports of it, and their quality and R&D is always top notch.

 

i thought the flywheel had to be 11-13 lbs?
isnt 9 to light for FI?

 

I don't have a Toda one, but I believe Exedy is very similar if not the same. I did have the starter problem few times initially, but I guess since it has been broken in, the problem has gone away. While my friend has the Spoon one on his ITR, he is still having this problem. In terms of which is better, it will get down to the chromoly vs. aluminum flywheel issue.

Here is my Exedy clutch combo:

 

A comment on flywheels in general:

Flywheel mass has little to do with its effect on engine performance. It's their mass moment of inertia that matters. Of course, generally speaking, the heavier the flywheel the larger the moment of inertia, but not always.

Mass moment of inertia is a measure of where the mass is distributed along the radius of the flywheel. The units are mass/radius squared, which effectively means that the moment of inertia is most dramatically affected by where the mass is located.

For example, if you have a 9kg FW with most of its mass in the center, the moment of inertia will be much lower than a 9kg FW with most of its mass towards the outer diameter.

And since rotational acceleration = torque/moment of inertia, the lower the inertia the faster the flywheel accelerates.

Find out the respective mass moments of inertia -- this is the relevant value.

 

bump.

Thanks for the help so far everyone, but I want to get more input from some other people before I make the decision.

So spoon might have starter gear problems, eh? hmm...

 

get the JUN and ull have no probs like me.... JUN

 

I have the Spoon flywheel in my DelSol, it didn't have any starter problem. But I heard that Honda used the JDM starter in DelSol, so may be I get lucky on this one!!

 

Comptech has a new Chromoly FW. Comptech quality is always great and I would not expect any problems with it. Comptech also has great customer servise in case a problem arises.

 

Is there a direct correlation between the flux capacitor and the fw? Is the number of gigawatts even matter after 88mph or is there some relavance??

 

the chromoly should not break

 

I'd inspect the two if you can, and if that's the case, then I'd say go for it. The further the weight is from the center, the higher the percentage of torque that is require to get this thing to start spinning and therefore the slower it will be to accelerate. If you keep the weight closer to the center, this thing might actually be a) stronger because of the extra material around the center (just make sure that the material is tapered properly or is machined properly around this center ring because of stress concentrations, but I'm sure those guy's thought about that), and b)be easier to move faster. Just make sure the material used for this better flywheel is actually made of a stronger or equivalent material (just find ultimate strength values if you can for these two materials and bingo). Enjoy whatever flywheel you get


[Modified by 98SILVERGSR, 12:07 PM 1/6/2002]

 

The starter problem only exists on the Integra. The Civic Si(R) starter's teeth are closer to the flywheel. For (some) Integra owner, if your aftermarket lightened flywheel give you the starter problem, just get a Civic Si(R) starter.

 

I have had my JUN flywheel for 1.5 years and have had the starter problem exactly 2 times, I love my JUN and so do the 8 friends that also have them. It is just a matter of taste that should decide which one you get.

 

you heard of this happening?