Flywheel
Turbo Mini Forums

What are anyones thoughts on : going as light as possible with the flywheel assembly for 1/4 mile sprint ? I have used a super lightweight Titanium flywheel and backplate, and when driving the car compared to a ultralight steel flywheel assembly, the engine certainly reved up very well, but it didn't think the car felt as good with overall oumph ! (Unfortunately I didn't get chance to test it 1/4 mile, and ending up selling it)
Nick Cole from KAD fame, said ultimately no flywheel was best.
I'm not conviced, (But who am I to contradict some Like Nick) but I am still very tempted.
I have come across a super light and small dia flywheel assembly and AP multi plate clutch (4Lbs) DAM expensive but looks great and a mini hillcimber claimed is was the DOGS !
Could this be something great, or just a F--KIN expensive frisby?

http://i28.photobucket.com/albums/c248/spe...er1/mini007.jpg

If it a'nt broke don't fix it !!!!!!!!!!!!!!!!!!!!!

is there nothing else on your car / engine holding you back more?!?!?!

Alex

AlexF

Alex
Basically NO! (Weight 465 KG without driver)

http://i28.photobucket.com/albums/c248/spe...er1/mini007.jpg

If it a'nt broke don't fix it !!!!!!!!!!!!!!!!!!!!!

Agree With Alex.

Whilst you might not need a flywheel for when driving 100mph, you certainly need one for launching.

Put simply - you have to do the maths. You also can't simply 'weigh' a flywheel and decide how effective it is; I find it ammusing when everyone quotes the mass of their flywheels- but never actually quotes the inertia of the assembly - by far the more important value when it's spinning.

A superior flywheel (IMO) would be of VERY little mass around the centre, and a thin steel ring (oh - conveniently like a starter ring) at a large radius. This keeps the weight of the unit down as a whole, but retains inertia.

I could defiantley agree that the minimum tolerable reduction in inertia is related to vehicle weight, but i do find it interesting how you said the lightweight flywheel lacked 'oomph'.
I an only assume Oomph is torque / hp? That said, a lightweight flywheel changes neither. A unit with a higher inertia would be more resistant to 'bogging' or pulling the revs down however on a launch.

Edited by turbodave16v on 7th Jan, 2006.

http://i28.photobucket.com/albums/c248/spe...er1/mini007.jpg

If it a'nt broke don't fix it !!!!!!!!!!!!!!!!!!!!!

Get one a flywheel off one of these fuckers..



JF.....

Edited by giallofly on 7th Jan, 2006.

Well, i can't explain that - it goes against theory!

Well it might take some serious power to get going, but if you could actually wind it up on the start line, I don't think anything apart from GOD would able to stop you!!!!!!!!!!!!!

http://i28.photobucket.com/albums/c248/spe...er1/mini007.jpg

If it a'nt broke don't fix it !!!!!!!!!!!!!!!!!!!!!

I have heard many people say that a lighter flywheel results in a less torquey motor and you can notice it more when going up hills as you need to apply more throttle with the lighter flywheel. Cant comment myself as ive never just changed my flywheel from standard to lightened to compare.

-MINI CLUBMAN 1380 TURBO-

quite simply ,the job of the flywheel is to store energy, if its storing it ,it cannot be releasing it .
so unless you are running rear wheel drive with big traction and need the kenetic energy that a flywheel stores you want to use the flywheel assembly with the least amount of inertia.


carl

WWW.FORCE-RACING.CO.UK PLEASE CLICK HERE

Hi,
If you look in the bible, there's a formula for lightened flywheels to do with your gear ratio, 10 lbs off the flywheel x your gear ratio = the amount of weight the car seems lighter to the engine, that means better acceleration for the drag racers!
Cheers,
Gavin. :)

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i have heard on the grape vine that the type of clutch your talking about (like the sort that lynxae sell??) is complete shite, giving rise to stalling and slippage and all sorts.

i was thinking about blowing my student loan on one and got warned from 2 well known tuners to steer clear.

thought id pass it on..

"Turbo's make torque, and torque makes fun"

"did you know you can toast potato waffles?"

Also - if you're talking about a turbo engine like you keep talking about - that little thing just won't cut it in the torque capacity stakes...

I liked what Lynxae sold. I think it's a fantastic piece of kit. I cannot understand how that would perform any different than a "normal" light flywheel.
After all, it's the radius of the mean mass that's important here..

YOu'd at least get rid of some harmonics due to not having the silly starter ring mounted in six narrow legged steel rods.