Hi, anyone know the weight of a standard classic flywheel and is it worth getting lightened and balanced or buy a lightened flywheel. What weight can you lighten the standard flywheel to safely?
Cheers.

 

I did hear that for my96 JDM WRX classic the fly wheel weighed in at around 12.5kg!
It is worth getting a lightened flywheel done IMO but I wouldn't go too light (torque storage capacity will suffer). Mine is a 7.5kg lightened flywheel which I've had no problems with and the driveability is still good.

https://www.scoobynet.com/drivetrain...-flywheel.html

 

looks lke the scoobyclinic 6.8kg is a good one, but back in 2004.

 

Found this one on Scoobyworld;
Clutches : Subaru Impreza Lightweight Flywheel Impreza 1993-2000

Looks good anyway

 

i dont wanna sound dumb but whats to gain from lighting the flywheel??

 

Less rotating mass so in theory an easier revving engine

 

and the negitive is less torque?

 

weighing around 6Kg that don't sound very good, could be 5.5 could be 6.5

 

Good question, I just read that there is a possiblility of this on a turbo engine as it revs too freely and the boost doesn't build up as well due to this. If that was the case though i would of thought there would of been people on here mentioning that or is it the case that it revs up quicker you don't realise the torque loss. Can anyone who has a lightened flywheel fitted add some input please and does anyone have any before and after torque figures relating to a flywheel change?
Cheers.

 

isnt it with a turbo all the powers at the top end because it has to spool up (turbo lag). but i would emagine every day driving would be poor.

where do u stand with this on a non turbo??

 

A turbo could be on full boost from as little as 3500rpm depending on vehicle and setup. Mines on full boost fairly early but have never had a good look at the gauge as my eyes are on the road tbh.

 

but thats half way throught the rev range, not bottom end

 

Yeah but your still making power lower down whilst spooling.

 

im not clued up on turbo engines so plz correct me, but the bottom end isnt much different from a non turbos, if the turbo is still spooling or does a waste gate elimanate this?

 

I have a lightweight flywheel and the car goes like a foofin rocket HTH.

Greater than the sum of parts though

 

Bttt

 

btttfw

 

what the hells that mean. you got the same keyboard i have??

 

Probably "back to the top for the win" (?) i.e. bumping this thread back to the top of the list, to advertise it better, etc...

If so, he left a 4th "t" out ('twixt "f" and "w").

 

^ HTH

 

IYSWIM

LOL

 

umm i think some1 is taking the **** ere

 

EFA

 

its like trying to talk to a polish, or my bank

 

You set yourself up fella.

Get with the program, baggy.

 

roger that lol

 

Why?

 

I followed Tracktives advice and ended up with a Kaiten 4.7kg one. My opinion? Its too light. I should have, again, stuck with my own mind and got lightened and NOT lighter.
4.7kg FFS, its a pain up the ****. I am used to it now, but I really do feel that this is one of the main reasons my car is so w4nk at 30mph in 4th gear. I have f**k all torque and bugger all rotational mass to keep the damn car going properly. 30mph is 3rd gear or get shaken to bits and get nowhere! LOL.
The worst thing is, I am damn well stuck with it.

 

Btttfw

back to the top for what

Anyways where is a good place to get these here flywheels from, looked on the clinic and it's going to cost about £800 for new clutch and lighter flywheel fitted.
The wife will not be best pleased if i tell her i need new suspension on top of this. Bought her a new hoover £330 yesterday. But this will not keep her happy for long, want a new kitchen next.

 

As I mentioned earlier; "torque storage capacity will suffer" if it's too light.

Could you maybe not buy another flywheel (heavier version) and then sell your ultra lightweight one to someone whos maybe only using there car as a race or track day car? Could get some of your money back then and your cars drivability too. Just a thought. Goodluck with it eitherway...sure it's still fun especially when you stomp on the loud peddleGareth