Muffleman Posted June 8, 2007 Share Posted June 8, 2007 Hi all, Thinking about changing from the HKS Triple, so would love to hear experiences of uprated clutches Must be good for 550bhp plus and last a sensible period. I had the plates in mine replaced a few months ago, eight runs at the pod and a few miles either side and it's apparently not got much meat left ! So clearly doesnt last long. I like the HKS when the car is on the move and going up and down the gears, but pulling away is an arse ! I forget how many cheers I've had from the turbofit mechanics whilst moving mine around Quote Link to comment Share on other sites More sharing options...
Steve Posted June 8, 2007 Share Posted June 8, 2007 The RPS Carbon Carbon clutch is supposed to be very good. But quite pricey. Quote Link to comment Share on other sites More sharing options...
Muffleman Posted June 8, 2007 Author Share Posted June 8, 2007 Yeah that is one (expensive) option, but I have heard they are good Quote Link to comment Share on other sites More sharing options...
JamieP Posted June 8, 2007 Share Posted June 8, 2007 Not a fan of the RPS cc myself, i had sams car for a couple weeks and it has a very heavy peddle feel and quite snatchy, i have the exeddy twin in mine and thats a nice drive (and can take plenty abuse) but the best ive felt is Jontys OSG tripple, loverly clutch that. Quote Link to comment Share on other sites More sharing options...
Muffleman Posted June 8, 2007 Author Share Posted June 8, 2007 Have to look into the OSG I think. Quote Link to comment Share on other sites More sharing options...
supragold Posted June 8, 2007 Share Posted June 8, 2007 HKS GD MAX twin mate. I'm running with that and I'm putting out 571bhp at the hubs. Handles the power and hasn't got the harshness of a triple. Lighter than stock feel. Big thumbs up. Quote Link to comment Share on other sites More sharing options...
Muffleman Posted June 8, 2007 Author Share Posted June 8, 2007 Thanks mate, will look at that too Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted June 8, 2007 Share Posted June 8, 2007 Ceramettalic clutches are not suitable for drag racing. You need either a carbon clutch (no experience of these on road cars) or a big organic one with a heavy cover spring. I would think the dual mass flywheel would also hate drag racing, due to the excessive heat build up. Quote Link to comment Share on other sites More sharing options...
Muffleman Posted June 8, 2007 Author Share Posted June 8, 2007 Thanks Chris, can't see me going near a drag track for a while, didn't really 'do it' for me. But want a clutch that will take trackdays and behave on the road too. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted June 8, 2007 Share Posted June 8, 2007 Thanks Chris, can't see me going near a drag track for a while, didn't really 'do it' for me. But want a clutch that will take trackdays and behave on the road too. OK, OS Giken twin plate is excellent, but no dual mass flywheel (it has its own flywheel in the package). Repair parts are available (try getting those for an HKS one), and they are quite light and pretty much judder free. Wez has one, if you want an independent opinion. I have just put a triple plate Giken in a T51 Kai turbo MKIV, so there should be an opinion on that shortly, too. My clutch would work, but be near its sensible limit. Quote Link to comment Share on other sites More sharing options...
Muffleman Posted June 8, 2007 Author Share Posted June 8, 2007 OK, OS Giken twin plate is excellent, but no dual mass flywheel (it has its own flywheel in the package). Repair parts are available (try getting those for an HKS one), and they are quite light and pretty much judder free. Wez has one, if you want an independent opinion. I have just put a triple plate Giken in a T51 Kai turbo MKIV, so there should be an opinion on that shortly, too. My clutch would work, but be near its sensible limit. Cool, look forward to the triple on the T51. Incidentally, what did you make of the T51 turbo Chris ? Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted June 8, 2007 Share Posted June 8, 2007 No useful comment on the T51, the engine is mapped so badly I wouldn't want to run much / any boost. It's BIG is all I can say I don't know HOW big, as I can only relate to Garretts sizing nomenclature. Quote Link to comment Share on other sites More sharing options...
b_have Posted June 8, 2007 Share Posted June 8, 2007 OK, OS Giken twin plate is excellent, but no dual mass flywheel (it has its own flywheel in the package). Repair parts are available (try getting those for an HKS one), and they are quite light and pretty much judder free. Wez has one, if you want an independent opinion. I have just put a triple plate Giken in a T51 Kai turbo MKIV, so there should be an opinion on that shortly, too. My clutch would work, but be near its sensible limit. I have the OS Giken twin plate and love it. Only done around 800 miles so far and will never drag it, whats the expected lifespan? (around 500 rwhp) If and when it does expire, what do you charge for a refurb? Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted June 8, 2007 Share Posted June 8, 2007 With all ceramettalic clutches lifespan is entirely down to how you drive and how its set up and adjusted during its lifetime. If it's worn out due to wear and tear, or serious failure, a new complete clutch is the best way forward, but at least spares are available, usually off the shelf, should you damage something. Set up and adjustements during its lifetime are the secret, and not slipping the thing excessively. Quote Link to comment Share on other sites More sharing options...
Homer Posted June 8, 2007 Share Posted June 8, 2007 I've got a Southbend DXD and stock flywheel in mine and it seems to be holding up fine so far (1k miles, daily driving or hard motorway pulls only) If feels exactly like stock around town with and has only a slightly heavier pedal feel. Not sure if it will hold out on the drag strip, will find out in a few weeks! Quote Link to comment Share on other sites More sharing options...
dandan Posted June 8, 2007 Share Posted June 8, 2007 My clutch would work, but be near its sensible limit. Could yours hold say 550lbf.ft if you stiffened it up at all Chris? It's not exactly stiff at the moment (in either of our two cars anyway) and I'm sure most owners could live with another 20% stiffness on the pedal if they got the required clamping force for a small/mid single... Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted June 8, 2007 Share Posted June 8, 2007 I could, *IF* I could get a suitable diagphram spring, but I have not been able to find anything. So as things stand, no, sorry, no can do Quote Link to comment Share on other sites More sharing options...
dandan Posted June 8, 2007 Share Posted June 8, 2007 OK just wondered. Is there any way to stack two diaphragm springs and have one machined thinner and therfore lighter (possibly a little tricky) or better still source a much lighter one to double up with a stocker. I've seen it done before on other motors...so just throwing the ideaa out there.. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted June 8, 2007 Share Posted June 8, 2007 Double diagphram springs can cause interleaf stiction and give snatchy, unpredicatble clutch release and premature wear, I have avoided that sort of thing as I have experience of problems with them With such good twin plates from the likes of Giken I doubt I'll do anything else, clutch wise, unless someone wants bespoke race stuff, which is right up my street Quote Link to comment Share on other sites More sharing options...
dandan Posted June 8, 2007 Share Posted June 8, 2007 Yeah fair comment. Sounds like the osg twin is a stout bet for semi reasonable money anyway... Quote Link to comment Share on other sites More sharing options...
Jonny5 Posted June 9, 2007 Share Posted June 9, 2007 What are views on the standard clutch disc, anyone know what torque they can handle...Chris do you still retain the standard disc in your uprated kit?? cheers Jon:) Quote Link to comment Share on other sites More sharing options...
supRo Posted June 9, 2007 Share Posted June 9, 2007 I'm very happy with the following setup: RPS Cyn-R-G Segmented Lightened Flywheel RPS Sport Clutch with Sprung Hub It's a paddle clutch but very freindly i.e. you get used to it and feels like a normal clutch after a while. It doesn't lunge (Spelling?!) forward when moving from stationary position. The lightened flywheel doesn't chatter 50% of the time (I'm on stock idle/normal idle) It is a strong clutch IMO. But mines a BPU TT. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted June 9, 2007 Share Posted June 9, 2007 What are views on the standard clutch disc, anyone know what torque they can handle...Chris do you still retain the standard disc in your uprated kit?? cheers Jon:) yes, my kit uses a new stock disc. Given enough clamping pressure they can probably hand;e a LOT of torque. Quote Link to comment Share on other sites More sharing options...
Gaz Walker Posted June 9, 2007 Share Posted June 9, 2007 I'd vote for the RPS C/C for power handling if you were regularly at the strip. However, my next favourite choice as Jamie says is the Exedy Twin, very nice clutch. Gaz. Quote Link to comment Share on other sites More sharing options...
supradibbs Posted June 9, 2007 Share Posted June 9, 2007 OSG Triple plate here noisey at low rpm but fantastic clutch i love it,had horsepower freeks clutch with a southbend pressure plate in the black one and i hated it very snachy. I had a drive of a supra with a carbon/carbon last week and have to agree with Jamie very high bite point and very heavy did not like it Quote Link to comment Share on other sites More sharing options...
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