12 replies to this topic

[ryomini]

Hallo

to all you TMf'ers who have experience with this product

 

Can you install the MED Spi ultralight flywheel with the rest of the standard Spi clutch set up.  I am finding it a little difficult to understand what components this flywheel is compatible with.  Med just state on their site that it must be used with a Valeo clutch cover (there is also a similar piece of kit from the US of A at double the price )

 

also is the timing set up then exactly the same as standard procedure

 

I would certainly like to try installing this with the 1.8kgs reduction over the original flywheel - things should spin up a lot quicker

it is currently being sold at around 170 quid including tax

 

would love to have other forum members' experience about this product if you happen to read this thread

 

I plan on coupling this with a tuned head and 1.5 roller rockers on 1275cc standard pistons

cheers

[racingbob]

I wouldn't personally put a ultralight flywheel on

a pretty standard car, leave as is and put your head and rockers on

if you must just put a fast road on just lightened a bit

 

I put ultralight on my mg metro and I took it off the next day

[ryomini]

racingbob

yes head, cam and roller rockers (didn't mention the cam I think) also straight cut gears and a lsd pinned diff

can you enlarge on your experience with the lightened flywheel

why did you particularly dislike it so much

what effect did it have on your mini

what were you looking for that you didn't achieve

thanks if you can give more feedback

[Steve220]

Depending on how light it is, idle is awful. If you've got a high duration cam it can also cause it not to idle without input.

[Midas Mk1]

Eh? I have both an MPi and normal med clutch setup - idles perfect with an SW10.

 

Actually tried and tested - would recommend.

[Steve220]

As I said, depends how light.

[ryomini]

Thanks guys

 

the problem is the Med type clutches come the weight that they are made there are no variations

 

some people have lightened the original clutch but so many people say that this opens up issues with cracks and shattering

I agree too light is going to be terrible on the road, slightly lightened would be great, but where to get it for the SPI mini ???

[ochumi]

this flywheel its for fast road? race? competition?

Edited by ochumi, 22 March 2017 - 12:04 AM.

[cian]

I have the mpi ultralight flywheel set up pretty much the same as the spi and it ain't really that light, it certainly weighs less than the standard so I wouldn't worry about idle issues and as Steve said it depends how light! But a great product would recommend

[mini_man_dan]

Call MED and ask, when I ordered my Lightened flywheel from them I thought I had selected the right heavy duty clutch cover but it turned out that I hadn't. They called me almost immediately and corrected the mistake for me, they were very helpful!

 

The engine at the time was running a kent cam (274spi), port and polished cylinder head, standard 1275cc and other internals. It was running 80hp and about 75lbft torque. It drove very well and could be used daily. The acceleration is quicker and the engine breaking is quite a bit more dramatic. The clutch is quite hard to depress but you get used to it.

 

The engine is now a 1380cc kicking out 100hp and 100lbft torque and I still have the same flywheel and clutch cover.

[idlethumbs]

http://www.minispare...AF.aspx|Back to

Not driven it yet but this one is currently been fitted to mine with the updated clutch during an engine rebuild by Keith Calver.
Injection specific lightened flywheel.

[Midas Mk1]

Med supply minispares with the injection flywheel :)

[brivinci]

Bringing this back up as I am wondering if anyone has the info I am looking for. So, Ive been told but many, MANY people that lightened flywheels have their place...its not on a road car. I completely get that and understand the reasons for it. Here is my question(s):

 

1. How much does the stock SPi flywheel weigh vs some of the lightened variants? What is the weight savings?

2. How much does a stock flywheel weigh on, say a mk1 Cooper S?

 

I have heard that the SPi/MPi flywheels were beefy and heavy. What is the difference in weight between the stock injection flywheel vs a stock early one? I'm wondering if a lightened injection flywheel is any lighter then a stock non-verto unit? When most talk about lightened flywheels, the thought goes to super light race units. Those are the ones that could alter idle issues and others. If the, say MED lightened SPi flywheel is close to a non-verto unit...that was used for ages with little know issues, would any of the typical downsides of fitting one really make sense? Really interested in your thoughts on this.