Lightweight flywheel
Discussion
robgt said:
How will the difference manifest itself to me?
Hard to say with a poxy V8...On the much-more-manly V12, the engine revs so much quicker; when you tap the loud pedal you really do get a fast blip, it's like the whole throttle has been remapped but it is a purely mechanical effect! However you won't get the benefit of the lighter clutch pedal with ASMII, I wonder if the gears will engage and disengage more smoothly? I would say so... the changes should in theory be that bit quicker and more positive because of it.
I think you'll love it Rob
Edited by yeti on Wednesday 30th January 11:49
DangerMonkey said:
Can you fit the uprated flywheel with just the standard clutch?
Anyone done this?
No, they don't fit together AFAIK, the flywheel is designed to be used with the Bamford Rose twin-plate uprated clutch - they're designed as a package (so equally you can't have the clutch without the flywheel either, it doesn't fit). Anyone done this?
Also, why would you want to keep the weedy single-plate jobby when there is a far better option..?
^ It will depend entirely on the flywheel design and dimensions, standard dimensions, not a problem. I've changed a few on older cars and kept the standard clutches.
However and more to the point, if you're going to the effort of removing the clutch to change the flywheel then surely you might as well upgrade.
However and more to the point, if you're going to the effort of removing the clutch to change the flywheel then surely you might as well upgrade.
yeti said:
No, they don't fit together AFAIK, the flywheel is designed to be used with the Bamford Rose twin-plate uprated clutch - they're designed as a package (so equally you can't have the clutch without the flywheel either, it doesn't fit).
Also, why would you want to keep the weedy single-plate jobby when there is a far better option..?
That's a shame was considering calling them over that come replacement timeAlso, why would you want to keep the weedy single-plate jobby when there is a far better option..?
Well there's cost for starters not sure I could fully justify it.....there's a multitude of reasons, I'd particularly like the quicker spin up. Without getting flamed or indeed jinxing myself (I understand the benefits) I've already got over 30k out the current setup anyway so there's no reason to suspect I won't again... I ony do 6k/yr so that equals 5yrs plus of use.
ds2000 said:
^ It will depend entirely on the flywheel design and dimensions, standard dimensions, not a problem. I've changed a few on older cars and kept the standard clutches.
However and more to the point, if you're going to the effort of removing the clutch to change the flywheel then surely you might as well upgrade.
That's what I was hoping, done similar to other cars in the past. 2.0l vtec being an exampleHowever and more to the point, if you're going to the effort of removing the clutch to change the flywheel then surely you might as well upgrade.
A call to them will let you know 100% as its a bespoke design and Lewis could well be 100% correct for an Aston.
Like you I've changed several on DOHC VTEC cars and its easy, without seeing a schematic of the drivetrain and knowing the dimensions of the Bamford flywheel it's impossible to know.
But I honestly wouldn't bother doing one without the other.
Like you I've changed several on DOHC VTEC cars and its easy, without seeing a schematic of the drivetrain and knowing the dimensions of the Bamford flywheel it's impossible to know.
But I honestly wouldn't bother doing one without the other.
AMDBSNick said:
mikey k said:
Not sure you will be able to tell easily as you have ASM2
It should spin up quicker in neutral
So a complete waste of money that Rob could and should have spent on cider It should spin up quicker in neutral
It will rev out quicker in all gears as you are reducing the weigh that needs turning (reduced inertia)
It will also drop revs quicker (between gears) as there is less momentum
My point was the easiest way to demonstrate it on an ASM2 car is stick it in neutral and rev it feel the difference
Here's a simple guide for you
http://www.torquecars.com/tuning/flywheel-lighteni...
Suffice to say Johnny 550 is also getting one
Though I guess the rev matching of ASM2 will need adjusting, possibly just a clutch learn?
Edited by mikey k on Wednesday 30th January 12:37
ds2000 said:
A call to them will let you know 100% as its a bespoke design and Lewis could well be 100% correct for an Aston.
Like you I've changed several on DOHC VTEC cars and its easy, without seeing a schematic of the drivetrain and knowing the dimensions of the Bamford flywheel it's impossible to know.
But I honestly wouldn't bother doing one without the other.
Like you I've changed several on DOHC VTEC cars and its easy, without seeing a schematic of the drivetrain and knowing the dimensions of the Bamford flywheel it's impossible to know.
But I honestly wouldn't bother doing one without the other.
I quite agree, it's only something i'd have carried out come clutch replacement time. This is all theoretical for the moment, I'm just trying to weigh up the costs/benefits and not wind people up. Perhaps i will call when back in the country.
DangerMonkey said:
I quite agree, it's only something i'd have carried out come clutch replacement time. This is all theoretical for the moment, I'm just trying to weigh up the costs/benefits for myself and not wind people up. Perhaps i will call when back in the country.
Or if you have the engine out for any reason 
Worth saving some labour and upgrading then.
ds2000 said:
A call to them will let you know 100% as its a bespoke design and Lewis could well be 100% correct for an Aston.
I know for a FACT that the twin plate clutch cannot be installed without the BR flywheel on a V8 Vantage - it is much thicker (although still lighter!) and therefore requires a smaller/thinner flywheel. Based on that I have ASSUMED the flywheel cannot be installed without the twin-plate clutch. But maybe it can be spaced out... although that then offsets some of the gain in reducing the rotating mass.
A call to them will confirm 100% ither way
mikey k said:
To be clear
It will rev out quicker in all gears as you are reducing the weigh that needs turning (reduced inertia)
It will also drop revs quicker (between gears) as there is less momentum
My point was the easiest way to demonstrate it on an ASM2 car is stick it in neutral and rev it feel the difference
Here's a simple guide for you
http://www.torquecars.com/tuning/flywheel-lighteni...
Suffice to say Johnny 550 is also getting one
Though I guess the rev matching of ASM2 will need adjusting, possibly just a clutch learn?
Thank you MikeyIt will rev out quicker in all gears as you are reducing the weigh that needs turning (reduced inertia)
It will also drop revs quicker (between gears) as there is less momentum
My point was the easiest way to demonstrate it on an ASM2 car is stick it in neutral and rev it feel the difference
Here's a simple guide for you
http://www.torquecars.com/tuning/flywheel-lighteni...
Suffice to say Johnny 550 is also getting one
Though I guess the rev matching of ASM2 will need adjusting, possibly just a clutch learn?
yeti said:
I know for a FACT that the twin plate clutch cannot be installed without the BR flywheel on a V8 Vantage - it is much thicker (although still lighter!) and therefore requires a smaller/thinner flywheel.
Based on that I have ASSUMED the flywheel cannot be installed without the twin-plate clutch. But maybe it can be spaced out... although that then offsets some of the gain in reducing the rotating mass.
A call to them will confirm 100% ither way
Based on that I have ASSUMED the flywheel cannot be installed without the twin-plate clutch. But maybe it can be spaced out... although that then offsets some of the gain in reducing the rotating mass.
A call to them will confirm 100% ither way
- I wonder if the travel on the standard components would support the thinner flywheel and thin standard clutch? Obviously when you release the clutch pedal the plate moves onto the flywheel... so is there enough travel?As you say, one without the other makes no sense to me at least, even less so if packing it out and increasing the inertia
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