31 replies to this topic

[Mini_Magic]

Pros: Men will be impressed.

Cons: Women will not sleep with you.

Edited by Mini_Magic, 24 October 2012 - 12:23 PM.

[SMP]

Lots of opinions - some seem to be informed - some I'm not so sure.

Have been reading the yellow bible over the last few days and was looking at a lightened flywheel. From what I can remember the idle may be a bit lumpier - depends upon what cam you have. There will be a noticeable effect upon acceleration - but the effect will be greatest in the lowest gears.

On balance I think it would be best to read Vizards Tuning the A series and make an informed decision. If you ask us for our opinion you will get exactly that - opinion. Sometimes this is coloured by our own personal experience and sometimes by what we have heard!!

Steve

[blacktulip]

from exprience i fitted an MED lightened clutch kit for my old mini and it was a good purchase on my old 1275 engine. it made driving it more effortless and it picked up better too.

[Ethel]

When you're in gear the effect is no different to lightening the whole car (or not giving your pie eating mate a lift), with the advantage that the gear ratios multiply the effect in the lower gears. It will make very little difference to your mpg. That Newton geezer says you'll only notice the stored inertia when you slow down or speed up - in equal & opposite amounts.

[Midas Mk1]

Like a dual mass flywheel?

Avoid like the plague! Don't ask how much my Dad spent on that and a clutch cost on his 40k mile A4.....

Edited by Midas Mk1, 24 October 2012 - 02:15 PM.

[mk3 Cooper S]

Like a dual mass flywheel?

Avoid like the plague! Don't ask how much my Dad spent on that and a clutch cost on his 40k mile A4.....

Standard practice to change the flywheel with a clutch these days.

Mine can rattle for a little longer !!!

[Midas Mk1]

I dont think its right though having to pay £600+ more on a flywheel when it's already 4 figures for a clutch....
Audi are pathetic - they diagnosed the problem by taking the front end apart, then refused to refit the clutch and flywheel, so that it could be taken to a mates garage.
(The clutch stilled worked, abeit not being super light like it normally is)

My cousins got one in his 1 year old St, and is already scheduling to get rid of it and fit a normal one at christmas. Just my 2p haha

[Deathrow]

I dont think its right though having to pay £600+ more on a flywheel when it's already 4 figures for a clutch....
Audi are pathetic - they diagnosed the problem by taking the front end apart, then refused to refit the clutch and flywheel, so that it could be taken to a mates garage.
(The clutch stilled worked, abeit not being super light like it normally is)

My cousins got one in his 1 year old St, and is already scheduling to get rid of it and fit a normal one at christmas. Just my 2p haha

I didn't know they had started putting them in petrol cars too?

[racingbob]

i have tried a ultralite assembly on my car

it came off the next day

mg metro engine and cam, it lost torque

put standard back on - great again.

i was realy suprised, just shows be careful

with this, unless fairly modified and high revs

[mini93]

I dont think its right though having to pay £600+ more on a flywheel when it's already 4 figures for a clutch....
Audi are pathetic - they diagnosed the problem by taking the front end apart, then refused to refit the clutch and flywheel, so that it could be taken to a mates garage.
(The clutch stilled worked, abeit not being super light like it normally is)

My cousins got one in his 1 year old St, and is already scheduling to get rid of it and fit a normal one at christmas. Just my 2p haha

I didn't know they had started putting them in petrol cars too?

not everywhere does it. The duel mass cuts down on judder etc. i think useful for larger cars with the capacity to tow
That said they are of course more expensive
You can get solid flywheel conversions
Oh and a clutch should last more than 40k's unless he tows houses about daily

[JustSteve]

.

Edited by JustSteve, 24 October 2012 - 05:31 PM.

[minimarco]

Like a dual mass flywheel?

Not quite as those two masses can't be detached from one another, unless there is a different type to those used on diesels.

I think what he means is extra weight which spins freely on a bearing but can then be joined to the fixed flywheel somehow, possibly by a friction material like a second clutch?

Not thinking of a dual mass... maybe like a centrifugal advance in a dizzy, but applied to a flywheel. Or as deathrow suggested, a clutch to switch between a heavy and a light flywheel.

But I don't know what car this flywheel would be put in, a track ready car that you can drive daily? But if you are going to spend that much money on a flywheel, I assume everything else will have to be engineered to have dual personalities. When you spend that much, might as well buy two separate cars.

Oh well

[R1minimagic]

The inner torque will be exactly the same (i.e. torque from fuel combustion) but the outer torque will increase with a lightened flywheel as you have less transmission losses.

I dont think it will make any difference to how quickly the vehicle decelerates as the engine will still be in gear but if you knock it out of gear, yes the engine will slow down rpm more quickly just like it revs more quickly

[mab01uk]

I dont think its right though having to pay £600+ more on a flywheel when it's already 4 figures for a clutch....
Audi are pathetic - they diagnosed the problem by taking the front end apart, then refused to refit the clutch and flywheel, so that it could be taken to a mates garage.
(The clutch stilled worked, abeit not being super light like it normally is)

My cousins got one in his 1 year old St, and is already scheduling to get rid of it and fit a normal one at christmas. Just my 2p haha

I didn't know they had started putting them in petrol cars too?

Some petrol engine New MINI's have dual-mass flywheels in the quest for ever more drive train refinement and many early R53 MINI Cooper S had to have rattling DMF's replaced under warranty (the early petrol R50 Cooper and One still have conventional flywheels).

DUAL MASS FLYWHEELS: What are they and why are they so much trouble?
http://www.honestjohn.co.uk/faq/dual-mass-flywheels/

[Midas Mk1]

Well my dads A4 was just under 3 years old, so still in warranty, thats the reason Audi ended up cashing in. It's never been used to tow, and only has two people in maximum for most journeys, so it's hardly stressed.

To make matters worse, my uncle in his a4 had the same problem at 44k, again be raped by Audi as it was under warranty, with them refusing to budge on fixing it.

Then last week, his best mate had his dual mass clutch go, with the total sum of 4k miles on the clock.... hence why my cousin wants to get rid of his aha

Clutches should last more than 40k, and my dads flywheel, in warranty, had 'damage' caused from the clutch - if we werent so stressed at the time, we wouldnt have accepted it :/

Edited by Midas Mk1, 24 October 2012 - 06:42 PM.