GAG

i am getting an uprated clutch (not a paddle) was wondering about fitting a lightend flywheel ? ive heard it can give lumpy idle?
any major disadvantages? will you notice better pick up? thanks people gag

Tired Old Dad

I've had an uprated clutch fitted and needed a new flywheel, so had a lightened flywheel fitted, it does pick up slighty quicker, but the biggest difference was the effect when you take your foot off the loud pedal, the car slows down really quickly, not like your normal family car. It took a while to get used, especially when coming up to lights, roundabouts etc.

RB5_245

If you get one too light, without proper mapping it can stall when you come to junctions and the like.

Phildodd06

Sorry to hijack, but....
What would you recomend as a good all rounder, one that dosnt need maping, or is as harsh when you let off the throttle, but still has a nice pick up??
Also, would it help balance it out if you put a lightened crank pully on too?

hux309

I would say an exedy flywheel.

Ian

iTrader: (10)

am running a 4.3kg flywheel, and ap organic clutch.
no problems so far, have only stalled onec, when reversing into a parking space.

havent really noticed the lumpy idle, mayb idles a little lower, but nothing to worry about.

pick up does feel better

MazingerZ

I think API sales one that is about 7-8kg and is a good compromise

badgerface123

whats the weight of a standard flywheel??

RB5_245

Std is 12 or 13kgs IIRC. I would say the API lightened original is good value and a good compromise.

Phildodd06

Yea, API do a 7kg flywheel for £175
Whats the price of an Excedy organic clutch aswell?
Im obviously only going to do my flywehhl when my clutch eventualy goes.

What about the Crank pully, any info on that?

hux309

Typical exedy clutch hmm 230mm about £150 on ebay and the flywheel on here in a group buy for £250.

Flywheel weighs about 5.5kgs

RB5_245

You can get different specs of clutch from exeddy, the (usual) ebay one is not an uprated part.

Aztec Performance Ltd

iTrader: (234)

I prefer light flywheels and run a superlight one on mine.

We are currently doing a GB on Lightweight flywheels and Exedy clutches.

Exedy Organic Racing Clutch Kit (5 Speed) is £285.

Forged flywheels from £195.

https://www.scoobynet.com/group-buys...ywheel-gb.html

In stock. Only 3 sets left


Bob

harvey

iTrader: (48)

There appear to be two flywheels fitted to Classic cars. Both look the same but one is 10.4 - 10.7 kg and the other 12.2 kg or thereabouts.
I have run numerous weights of flywheel from under 5 kg up to 12 kg.
I cannot say there is any actual performance gain that can be measured from a lightweight flywheel but I guess every little bit counts.
With a light flywheel, tick over can be erratic or less smooth and using the clutch has to be a more precise operation. On the drag strip with an OE flywheel the car would come off the line easily with 4250-4500 rpm but with a light flywheel the same car needed over 6000 rpm and there was little leeway for error.
For road cars I now settle on an OE flywheel lightened to around 8 kg and find this works very well. Sat ticking over, the engne will rev a little better if the throttle is blipped but I don't think it translates in to noticable benefit on the road. The main reason for changing a flyweel is during a clutch change if there are obvious hot spots on the existing flywheel and I always use a ground surface as opposed to something turned in the lathe.