Minispares Uprated Verto diaphram
Turbo Mini Forums

This is a new bit from Minispares not sure what it's a 20% improvement on as there was always an inconsistancy in spring rates.

Could be useful for moderately powered cars (such as my 998 road engines)

http://www.minispares.com/Product.aspx?ty=...id=42699&title=

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

The way I understand it, or at least have measured it, the 'uprated' clutch is 'uprated from the standard 1275 clutch, but not uprated as much as the genuine turbo clutch was.

Minispares spring (dark blue) is roughly 2.25mm thick while a turbo spring (light blue) is roughly 2.4mm thick

These are both AP clutches

You cannot beat the genuine turbo clutch, and I don't know where you can get an 'uprated' turbo clutch other than perhaps from Vmax Scart

Edit** looking at the part number, this is different to the ones I have looked at so perhaps at last there is a decent alternative?

Edited by Sprocket on 6th Aug, 2010.

I noticed that Vmax is advertising a 220ftlb rated verto.

As sprocket said this is a new plate made to the original turbo spec, this was previously only available as a clutch kit.

Would this upgraded verto be up to this spec?

1293cc
9:1 CR
Ported head (MSE6 with) 28cc chambers
Mg metro cam
1:1.3 rockers
M45 SC
Intercooler
10psi boost

I have an MG metro verto clutch 0.08 spring which won't do (confirmed by search).
Also have a Pre verto setup with orange diaphram and organic plate (new) but from searching the orange diaphram would be borderline (found in search).

Seeing a lot of trust being eaten when using grey diaphram I am reconsidering the verto.
As this MS upgraded pressure plate also take 190mm organic plate I am tempted...

I have all parts for going either way, verto or pre-verto and engine isn't built yet.

Any thoughts?

Dazed and Confused....

I've just bought one of those. I'm using it with a 6 plate paddle clutch. Only time will tell how good it is.

it wont cut the mustard yo han .....

in short ....... on the vertro
you need to double up on the spring levers grinding the rivets out and replace them with high grade cap heads 12.9 and nuts,,,,, and double the spring fingers one ontop of the others use old ones if you wish! ..... this will cut the mustard and not duff your thrusts in ...........and will hold power figures well over 260 bhp ....but

but the vertro flwheel is heavy and the motor wont spool up as quickley as a ultralight pre vertro set up ....... minispares and MED do a lightend vertro flwheel but its still a tad heavy compared to a pre vertro.

horses for corses!

Cheers Beross,
That was the option I didn't mention but I have been reading the RTS info.
I guess I should look for another valeo clutch..

I guess I should give that a go as I am more worried about the thrusts than engine spooling up (don't want to rebuild an engine every year.. )
I did have a look at the trusts that are 'screwed' into the block.

Thanks again, much appreciated
Han

Edit; typo

Edited by Yo-Han on 9th Dec, 2010.

Dazed and Confused....

Just got my hands on one of these 20% uprated verto clutch covers.

The spring thickness is 0.113" or 2.87mm.

I'm going to try it at 120 lbft.

My existing 0.095" spring is holding 105 lbft OK.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Ah, so it looks like 20% over a turbo one then,

is it a valeo type? or an AP as per their pic?

Exactly as the Minispares picture, even the blue spot of paint.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

excelent, a good basis for a mega RTS if its ever needed,

I'm game if someone wants to make it for me lol.

If something is worth doing, it's worth doing half of.

My offer still stands buddy

Yes i moved to the darkside

Instagram @jdm_brett

We better get a list of parts together then and get cracking. lol

If something is worth doing, it's worth doing half of.

Whars the turbo spring 2.2mm? Or is it 2.4mm ish

Yes i moved to the darkside

Instagram @jdm_brett

John ill drop you a pm when i get home

Yes i moved to the darkside

Instagram @jdm_brett

2.4mm

I hope your not TM'ing while bus driving! lol

If something is worth doing, it's worth doing half of.

2.4mm so what is the 2.2mm spring from as my rts has 2 of them and one is definitely light blue splodge
and john no, was waiting for friends to come so i could take them out to a party (lucky gits)

Yes i moved to the darkside

Instagram @jdm_brett

2.2 is a std 1300 one,

there are some around 2mm presumably from 998's, and a few other random ones depending on the type/manufacturer.

cheers Joe, looking back at my notes my rts has 2.4 and 2.2 mm springs in theory does that make it say 48% stronger than the 2.4 (turbo) spring alone?

Edited by Brett on 10th Dec, 2010.

Yes i moved to the darkside

Instagram @jdm_brett

Dazed and Confused....

Brett, thats the assumption I have been working on, and it seems to pan out with roberts power output,

What I have done is put together a spread sheet of clamping forces scaled from Turbodaves measurement of a turbo clutch, from the clamping forces i have calculated a theoretical torque capacity, I doubt its particuarly accurate but it should give an Idea,

for the 2.2 & 2.4 spring I estimate the following,

Release/ thrust bearing load 460lb
Clamping pressure 1800lb
tourqe capacity 220-240lb


Yo-Han, there seems to be loads of springs, I have mainly seen AP ones, so there could be a thickness diference between them and the Valeo ones, it would make sense as the springs are different diameters, also contact points seem to vary between units too making things even more complicated...

for your two 2mm springs I estimate,

Release/ thrust bearing load 400lb
Clamping pressure 1600lb
tourqe capacity 190-210lb

currently on my list of springs i have, not all measured by me as I have only seen 2.2 and 2.4mm springs so far.

1.65mm 998?
1.9mm 998?
2.0mm 1300?
2.1mm 1300?
2.2mm 1300
2.3mm (Paul S's Sachs turbo)
2.4mm (turbo daves turbo spring)
2.8mm minispares 20% uprated

If any one wants a copy of my spread sheet let me know.