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Author Topic: MV6 flywheel weight? places that will lighten it?  (Read 2085 times)

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IrmscherKris

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MV6 flywheel weight? places that will lighten it?
« on: 06 September 2007, 21:46:26 »
I got on the loud pedal today in the MV6 round snake pass (A57) and was quite impressed!  :)

It's got a superchip and full de-cat, I'm thinking the next step is to get the flywheel lightened.
Whats the standard weight of the flywheel and does anyone have an opinion on how light to go. This is a daily driver so cant go too light or I will probably end up killing myself!

« Last Edit: 06 September 2007, 21:48:56 by irmscherkris »
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TheBoy

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Re: MV6 flywheel weight? places that will lighten
« Reply #1 on: 06 September 2007, 21:47:35 »
Quote
I got on the loud pedal today in the MV6 round snake pass (A57) and was quite impressed!  :)

It's got a superchip and full de-cat, I'm thinking the next step is to get the flywheel lightened.
Whats the standard weight of the flywheel and does anyone have an opinion on how light to go. This is a daily driver so cant go too light or I will probably end up killing myself!

Not sure how easy, as they are dual mass....
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Jay w

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Re: MV6 flywheel weight? places that will lighten
« Reply #2 on: 06 September 2007, 22:00:11 »
my experience of lightened flywheels on V6s is with FWD applications.

I have used a 2.0XE flywheel on a V6 in the past, ther weight difference is massive, to the point that the engine spins up so much faster and coupled with a lightened bottom pulley, 3.0 cams, modified throttle body and a few other tweaks the difference was phenominal

I dont know if the Xe flywheel would work in a RWD application it would depend on dimensions, one thing is sure, you would need to have a different clutch fitted as well
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IrmscherKris

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Re: MV6 flywheel weight? places that will lighten
« Reply #3 on: 06 September 2007, 22:59:16 »
Dual mass - tut! Nothing is ever easy, is it?
It would be worth looking in to standard flywheels I suppose - could work out nice and cheap!

I found out the standard weight is 15kgs!!!!  :o So with that in mind 10kgs would be sweet.
« Last Edit: 06 September 2007, 23:00:03 by irmscherkris »
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Golfbuddy

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Re: MV6 flywheel weight? places that will lighten
« Reply #4 on: 06 September 2007, 23:28:15 »
Any chance of a numpties guide to what this is all about?
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davlad22

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Re: MV6 flywheel weight? places that will lighten
« Reply #5 on: 07 September 2007, 04:56:56 »
It's official Kris, I LOVE your car  :D

Well chuffed you've managed to resurect it from the dead! Is it tip-top now then? Did it have MOT when you bought it? Presumably the exhaust is a bit of a swap out so it passes the test?
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Phil

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Re: MV6 flywheel weight? places that will lighten
« Reply #6 on: 07 September 2007, 07:44:57 »
COURTENAY do a lightened fly wheel, that weighs 5.6kg  :o

It does say diff clutch and bolts are required for Omega and they want £275 plus fitting!!!!

Best bet is to start with a chat with them before you 'play' with your one, but iirc a lighter fly wheel makes for 'jerky' driving in traffic so if its a daily driver it may make it 'uncomfortable' to drive
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Marks DTM Calib

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Re: MV6 flywheel weight? places that will lighten
« Reply #7 on: 07 September 2007, 08:10:33 »
You need to start from a front wheel drive V6 solid flywheel AND you need th associated clutch friction plate....

Heres one to ponder though....and I know the answer but food for thought.

How can a lightened flywheel (maybe 10Kg lighter) help an engine spin up faster when the engine is connected via a gearbox and diff setup to a 1700Kg car....

Food for thought.
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Andy B

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Re: MV6 flywheel weight? places that will lighten
« Reply #8 on: 07 September 2007, 08:49:26 »
Quote
.......

How can a lightened flywheel (maybe 10Kg lighter) help an engine spin up faster when the engine is connected via a gearbox and diff setup to a 1700Kg car..........

With great difficulty?  :y
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IrmscherKris

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Re: MV6 flywheel weight? places that will lighten
« Reply #9 on: 07 September 2007, 09:00:16 »
davlad22 - still some niggly bits to do (climate bulbs, front alloys need a refurb, various small scuffs and scratches and my brother-in-law owes me a blast over but yeah, I'm pretty happy with it now  :y )

Phil - very very very pricey, had a look at this last night - it's £275 plus their clutch and bolts (£250-300?) even doing the work myself, which I will... I'll be looking at £5-700 sheets. I could never justify spending so much on a cheap motor.

Mark - HIT ME!  ;D
I assume cos... it's right on the crank? I know it will never take off like a 4wd car either but that edge faster than it is now would be nice. I thought of getting an LSD diff but that kills the acceleration so thats out the window too.


Muchas appreciated guy's  :y
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Martin_1962

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Re: MV6 flywheel weight? places that will lighten
« Reply #10 on: 07 September 2007, 09:23:08 »
Quote
You need to start from a front wheel drive V6 solid flywheel AND you need th associated clutch friction plate....

Heres one to ponder though....and I know the answer but food for thought.

How can a lightened flywheel (maybe 10Kg lighter) help an engine spin up faster when the engine is connected via a gearbox and diff setup to a 1700Kg car....

Food for thought.

Angular momentum is more work to spin up.

Get two car wheels

One on a grippy slide so it turns

Other on an icy slide so it doesn't

Since it takes energy to accelerate the spin on  the wheel it goes slower.

Did this at A level Physics
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Martin_1962

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Re: MV6 flywheel weight? places that will lighten
« Reply #11 on: 07 September 2007, 09:25:46 »
Well my Sunbeam had a great big heavy flywheel and that did not rev quickly, despite the increased power and high lift cam. I reckon a lighter flywheel would have made it a lot revvier - and knocked maybe 1/2 second off the 0-60

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Marks DTM Calib

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Re: MV6 flywheel weight? places that will lighten
« Reply #12 on: 07 September 2007, 09:43:18 »
Martin....do you REALY think that shaving 10 Kg off a flywheel will make a 1700Kg car accelerate faster.....come off it!

The limiting factor is the engines power and the most significant contributing factor is the vehicle weight.

It will make the engine spin faster if it neutral.
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hotel21

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Re: MV6 flywheel weight? places that will lighten
« Reply #13 on: 07 September 2007, 09:50:59 »
Quote
.....It will make the engine spin faster if it neutral.

.... or slow down quicker.   :D
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IrmscherKris

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Re: MV6 flywheel weight? places that will lighten
« Reply #14 on: 07 September 2007, 09:54:12 »
Mark - What do you recon then? (as in a power increase)

I can't see somewhere like courtenay selling a lightened flywheel that doesnt do anything
it just doesn't seem right....
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