clutch?
Turbo Mini Forums

any opinions on best one to use?

wouldnt mind an answer to this too. iv often seen "grey diafram and organic plate" crop up, but from whome are these purchased and any machining required for fitment to a normal and aftermarket (A) flywheel?

turbo 16v k-series 11.9@118.9 :)

Denis O'Brien.

Depends how much power you have/want?

Ive never used a verto clutch, the pre-verto clutch can handle more torque due to the diaphram springs and plates avaliable.

I used a normal (preverto plate) with 90hp na, and a standard diaphram which didnt slip for 25000 odd miles. But the rivets holding the centre section of the plate to the splinded centre had all stretch (hence the plate and spline were effectively loose.) It jiggled when shacken, not so good.

With 150hp turbo engine I use a grey diaphram and a rally clutch plate (as it has twice as many rivets) and and have had no trouble with it for a year or so


Phil

yeah, iv jsut changed to pre-verto, never going back! the pedal feel is mucho lighter :)

turbo 16v k-series 11.9@118.9 :)

Denis O'Brien.

I do use the double gray and clutch plate that is made of copper.

Grey diaphragm and rally plate, bought from MED 4 years ago.

grey and rally plate.

alex

AlexF

Grey, AP organic plate, backplate lugs machined to 23.5mm, great for the 1/4 mile and general road use (still has a light pedal) but starts slipping at peak torque (around 3800 rpm) in high boost after it's bedded in...

lugs machined.. now i recall AC saying something about peak clamping pressure or other (cant remember) i asume thi sis somethign to do with it?! on a normal flywheel or ultra-light-steel jobbie?

turbo 16v k-series 11.9@118.9 :)

Denis O'Brien.

Hmmm, well i recall being scoffed at (on miniclassic) when i first said i did this...

Basically, the diaphram body deforms more with the higher load from the grey spring than if a blue is fitted for example, hence this 'deformation' is moving the spring reaction point away from the flywheel the more load is increased. In my tests on a clutch testing rig at work, i found that 23.5mm worked pretty well for an almost new clutch plate...

only fools socffed I seem to remember!

After all you are the gearbox man!

alex

AlexF

socffed?
LOL!

scoffed...

you know what I mean

AlexF

LOL It doesn't take much over on miniclassic to get scoffed at! If you know what i mean

Best 1/4 mile 13.2 seconds @116 mph
First 5 port miniturbo to make over 200 bhp on a carb?
First 5 port miniturbo to make over 200 bhp on Injection?

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Thankfully Rabbit molester has had a very public telling off from Chip (owner of Miniclassic) so has been sulking and not posting much recently...
Many, Many people (myself included) had a big grin on our faces when that happened!

Edited by turbodave16v on 30th Aug, 2004.

Grey and bronze paddle.

Grey with paddle

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