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[Grant]

Hi all,
New to the site, so apologies if i've poste din the wrong section, or this question has been asked (i did search but found nothing )

So, I have a 3.2 v6, manual box, my clutch has gone, and the flywheel is also knackered. Now after being slightly upset at the cost of a new one, i had a look into getting a lightened one,
Now Courtenay have them, and i am tempted to buy one, however, it says i will need a different clutch kit, as the lightened one isnt dual mass.
So my question is.... do any of you guys know which clutch i should be using, and will i encounter any other problems along the way?

Thanks in advance

[ffcgary1]

HI there yep in the wrong section , should be in gen help, but no matter, courtney should also supply the clutch as well ,should'nt they ?.

Gary.

[RonaldMcBurger]

I have two manual flywheels for Omega sitting in my shed. Both are from 3.0 manuals and both are dual mass. If you want one, come and get it.

[Grant]

I have two manual flywheels for Omega sitting in my shed. Both are from 3.0 manuals and both are dual mass. If you want one, come and get it.

Hi, thanks for replying! Where are you located and how much would you want for one?

Thanks

[RonaldMcBurger]

Nottingham - free.

[Grant]

Nottingham - free.

Cheers! Its a bit of a long way, I'll try and organise some transport. Might have to give the bro a ring, he owes me a favour

[omegalord]

COuld i have the other one ronald please?

I could then get it lightened couldnt i?

Matt

[omegalord]

Is that a no then ronald?  

[RonaldMcBurger]

You can have the other one if you want mate.

[omegalord]

Cheers Ronald,

It will fit a 2.5 v6 wont it?

If so i can have it lightened at the local engineering firm and it should pick up better then shouldnt it?

matt  

[Entwood]

MMm .....  

I don't see how taking the odd few hundred grams off a flywheel will make a car of around 2000Kg "pick up" faster .. it might get to high revs faster in neutral .. but thats about it IMHO.

Laws of physics cannot be overcome by wishful thinking .. now if the car was 200Kg it might make a difference ........



Just my 2.7 p's worth (inc VAT)

[Matchless]

Cheers Ronald,

It will fit a 2.5 v6 wont it?

If so i can have it lightened at the local engineering firm and it should pick up better then shouldnt it?

matt  

2.5 and 3.0 flywheels are different, if you also fitted the 3.0 clutch then it would fit physically but I dont know if the crank balance factor will change.

[RonaldMcBurger]

No idea Matt. I just know they are about to go in the scrap bin!

[Marks DTM Calib]

Quite how you can lighten a complex dual mass fly wheel I dont know.....

[Kevin Wood]

MMm .....  

I don't see how taking the odd few hundred grams off a flywheel will make a car of around 2000Kg "pick up" faster .. it might get to high revs faster in neutral .. but thats about it IMHO.

Laws of physics cannot be overcome by wishful thinking .. now if the car was 200Kg it might make a difference ........



Just my 2.7 p's worth (inc VAT)

It won't make a vast difference to the performance of the car. However, in addition to being accelerated down the road with the car, the flywheel mass is being accelerated to a high angular velocity, and it happens through each gear so it has a bigger impact than its' weight would imply. Probably still not that significant in a 1700 kilo car though.

The main impact of having a lightened flywheel is that the engine revs will drop quicker when you come off the gas at 6.5k+RPM to select the next gear. This means you can snatch the gearchange quicker than you would with a heavy flywheel. It also helps when changing down the box, as a quick blip of the throttle will match the revs more easily.

I replaced 16Kg of flywheel on my Westfield with 5.5Kg and it was a worthwhile modification (car weight 650Kg). The main difference is that you can change up as fast as you like now. Before, you could declutch and select the next gear with the engine revs still sky high. When you came off the clutch and back onto the gas there'd be so much energy stored in the flywheel it would either (in the high gears) cause the clutch to slip for a few seconds or (in the low gears) break traction at the rear end (and once it's gone, it's gone   )

The down side is that "normal" relaxed driving is not as easy, because while you're off the gas during a relaxed gear change the engine all but stops so you have to feed a little throttle in. Ditto during downchanges. Pulling away and driving at low speed needs more careful co-ordination of the controls too because it's easier to stall.

So, the benefits are felt when you're really driving like a hooligan. Whether it's worthwhile depends on how often that is, I guess.

Kevin