Exedy clutch - uprated but 4 spring?

[m1tch]

Hi all,

I have been offered an uprated organic Exedy clutch, I have been told its uprated and have no reason to doubt that, however it only has 4 springs, whereas all of the other uprated disks/kits I have seen for Exedy have had 6 springs, could the uprated 4 spring clutch just be a \'stage 1\' type clutch and the 6 spring sort being the heavier uprated sort?

I need to know asap as its part of a deal, I know the OEM clutch has 4 springs, ive never seen an uprated clutch with just 4 springs.

[TiddlesRX7]

The FC I scrapped was meant to have one in that had only had a months use. It turns out it wasn\'t an Exedy clutch in the end but when I googled it it is made by a sister company of theirs. I\'m sure it only has 4 springs. I can check tomoz if you like.

[m1tch]

If you could that would be useful, im guessing that the part number should be on the plate though? As in stamped into the centre?

[Prof]

Mitch, are you referring to the springs in the centre which are there to provide a \'bit of give\' when you engage the clutch ?
 
There is also an amount of springiness between the faces of hte clutch disk itself, and then of course the springs in the coverplate that hold the fingers - it\'s these two spring forces that the throwout bearing works against and basically define the clamping force the clutch can provide in conjuction with the 2 metalic friction surfaces and the organic material on the clutch disc itself.
 
I think Exedy\'s sister company is called Daikin - but those clutch discs are usually the slightly uprated stock replacement.  The upgrade cutch disks were in the pink/grey boxes, and the cover plate is usually silver not painted.
 
Was it one of these by any chance :
 
http://www.exedy.com.au/HeavyDutyClutchKit.aspx

[m1tch]

The clutch has a purple centre, think it has a silver pressure plate though, am I correct Exedy only sell as a kit and you can\'t buy just the disk, both are apparently uprated. I have seen a few Exedy \'stage 1\' clutches with a 4 spring disk and silver pressure plate, so it might just be an uprated street clutch rather than a HD race/fast road clutch.