Stock flywheel weight?

[ericrapp]

I am needin to replace the stock clutch if i want to do any more racing. I can still drive around town but last fall at the track with more boost she got stinky. I have been shopping and i wanted to compare flywheel weights also. And folks who have swapped or upgraded their stock clutches, i would be grateful for your input. I am not too pleased that the pricing on Act and Spec are so high. although i understand why but i am a little frustrated that i will need to spend sooo much when i can get a similar setup for half the price for my Honda. Yes i said it. the H word.
Thanks folks

 

[ericrapp]

The flywheel?

I am needin to replace the stock clutch if i want to do any more racing. I can still drive around town but last fall at the track with more boost she got stinky. I have been shopping and i wanted to compare flywheel weights also. And folks who have swapped or upgraded their stock clutches, i would be grateful for your input. I am not too pleased that the pricing on Act and Spec are so high. although i understand why but i am a little frustrated that i will need to spend sooo much when i can get a similar setup for half the price for my Honda. Yes i said it. the H word.
Thanks folks

well Eric i am not quite sure. i am also looking at performance clutches and would like that answer too. It seems when the magazines first started the write ups in 07 i was reading something like 13lbs. Can that be true? of course thas was a long time ago and i may be remembering incorrectly! thanks eric for this great question and good luck.

 

[meicalnissyen]

well Eric i am not quite sure. i am also looking at performance clutches and would like that answer too. It seems when the magazines first started the write ups in 07 i was reading something like 13lbs. Can that be true? of course thas was a long time ago and i may be remembering incorrectly! thanks eric for this great question and good luck.

ha ha

nice bump

the honda effect. its all mass production we are at the boutique end of that. with pricing between marine, and aviation

but, when I do it, and someday I will have to, I WILL get the fidanza flywheel. It made a huge difference to the Rolla.

the pressure plate and disc, I cannot truly reccomend,

but I think I would tend toward a stiff plate, and a stockish type of disc

 

[ericrapp]

Thanks for the laugh and remembering me. I want the six puck to go with the boost. i do not track the car that often and just want the car to be happy. i will be upgrading the turbo so i might as well plan for some more clamping and a higher torque rating. if i am going to spend that much moola i might as well get er done right and done once. Like i mentioned i thought we had a lightened flywheel as part of the SPEED package. I really should know this stuff but my clutch has held up so well with a ton of abuse i was actually surprised to get the telltale smell. And the boutique comment is all to true
thanks bud
e

 

[ericrapp]

moderators please remove. it seems it is a stupid question.

 

[meicalnissyen]

moderators please remove. it seems it is a stupid question.

Fidanza may know, and for stock, dunno "light", but it is a 2 piece with some springdamper assy in there

 

[MSMS3]

Ligher flywheels typically benefit cars that have very high rpm capabilities and need high rpm to develop torque. Like those Honda 9000 rpm zingers with little or no power down low that have to have the piss wrung out of them to produce power.

We have a turbocharged torque monster engine that develops its power much lower in the 3,000 to 5,500 rpm range and a turbo that poops out much above that range. I would doubt there would be much gain from a lighter flywheel, IMHO, and probably much to be lost.

 

[Blendercloud]

To the best of my knowledge, the Fidanza aluminum flywheel is 11 pounds and the stock flywheel is 26.

 

[ericrapp]

flywheels and rotating mass and enertia

To the best of my knowledge, the Fidanza aluminum flywheel is 11 pounds and the stock flywheel is 26.

Thank you for your help again BlenderCloud. The six puck ACT i was perusing was offering a 30 lb flywheel and i thought to myself, that might be in the wrong direction. a little lighter with a heavier clamping unit would be best as long as my left knee held up. i have driven some race clutches and that might be too much for summertime daily driver.
I am searching for a new set up only because mine is starting to slip with more boost applied. I was always pleased with the feel of the stocker and it treated me quite well considering the abuse i gave it.
I appreciate the reminder of theory that the high revving motors respond well to a lighter mass for quicker response. And also that we very nearly have a Big block torque monster in our 2.3! But as my car is ready for a more serious clutch setup i want to have as much info before i spend that money to be sure i get what is best for my application. Thanks for your help folks, i certainly am open to any more opinions on this matter.(thought)

 

[Blendercloud]

Don't forget that the heavier flywheel will help carry momentum through the drivetrain. It just won't rev up as quickly and you'll lose a little bit of power on the high-end from the extra weight. Who knows, carrying less momentum with a lighter flywheel might help with some wheel slip on the MS3?

 

[ericrapp]

I agree as it is all about the application. My son in law explained this to me aways back.
Also one of the biggest issues at the 1/4 mile was the launch. almost an on off switch for me. But that is not my goal. i am trying to get the higher speed road car. that is one of the reasons i am trying to carry boost a bit longer in revs and raised the limiter to run out fifth and sixth gear a bit longer. maybe i should be staying with the stock flywheel weight, you really have me thinking, for enertia. i am not looking for quick throttle response so much because i do not go to the drags that very often during the season because of the abuse.
Have you folks any thoughts on a specific clutch/flywheel setup for me? i have pretty much maxed out the turbo and am looking forward to ball bearings but the clutch is the first order of business before i consider any more hp/tq. thanks again.

 

[Blendercloud]

Considering that you're aiming for a road car, you should also realize that the lighter flywheel will aid in compression braking. Good compression braking can really help on all sorts of road courses to keep from chewing up rotors and pads or having chronic brake fade.

 

[ericrapp]

jake brake!

Considering that you're aiming for a road car, you should also realize that the lighter flywheel will aid in compression braking. Good compression braking can really help on all sorts of road courses to keep from chewing up rotors and pads or having chronic brake fade.

who are you? really! just kidding. Jebus more stuff to put in the pot. The formula for Eric's clutch is still not solved. but with calculus we are getting closer. the higher weighted flywheel will try to maintain rpms due to enertia from mass!?

 

[Blendercloud]

I think we both know road races are won through braking.

 

[MSMS3]

Interesting observation here about our stock dual mass flywheel and clutch combo:

http://www.msprotege.com/forum/showthread.php?t=123663653

For a daily driver, I think stock flywheel weight would be best, whether you stay with a dual mass flywheel/clutch combo or whether you go with a solid flywheel and more traditional clutch.

Solid flywheel and traditional but heavy duty clutch will be cheaper. More grip, yes, less inertia, not so sure. I'd be reluctant to go much lighter with this application, even with OP's level of mods.

 

[ericrapp]

Wow that was info i wish i had read along ways back. it seems i should stick with weighting near stock and the cost of replacement is forcing me to go traditional style clutch. I have a friend who works for a auto salvage/junkyard and he has been keeping an eye out for a wrecked speed 3. I am looking for motor to play around with, but now i will want a drivetrain too.
I will try to be more responsible with some research on my own. but you guys have been a great help to get me focused and a little more informed.
What ever happened to Old Rotus8?
well i guess my last question would be.. with your gentlemans experience would you recommend 4 puck or six/ sprung or unsprung. i was looking at our vendors offerings today on lunch and see i have some options. I am still going to need to have a little slip to the engagement once in awhile.
How would you describe the differences with your Spec clutch compared to the stock unit BlenderCloud?

 

[Blendercloud]

I'll have to tell you when I get it in there next weekend! I bought it because I ran into a problem with the stocker slipping on launch through the first three gears on a track day. It hasn't felt quite right since that happened a couple weeks ago. I'll be doing a how-to on it as well.

Just a note, the dealer cost (no markup) for a stock flywheel is $750...

 

[ericrapp]

ouch