Clutch: Diaphragm not strong enough??

MatBat · Post by **MatBat** » Mon Jan 10, 2005 1:32 pm

Heh could only be a matter of time!

chris1roll · Post by **chris1roll** » Mon Jan 10, 2005 6:32 pm

For the sake of completeness now this post has come back to light, my clutch has been fine since. then, so even the earlier type can cope with the ECU mod.

rpruen · Post by **rpruen** » Mon Jan 10, 2005 7:32 pm

MatBat wrote:Heh could only be a matter of time!

Hm... I suppose, but I don't have the cash to do the dual plate conversion just now.

I tried a few Renault tuning places and they all use the Volvo clutch, so it looks like a bit of a dead end.

Richard

tobi480turbo · Post by **tobi480turbo** » Mon Jan 10, 2005 7:42 pm

Hi,

hmhm IÂ´m running a Sachs sports clutch at the moment which a friend figured out for me to fit ... so if I see him the next time I can ask him if he knows what clutch it was or what Sachs number it has ... probably this could help a little bit ?

regards

Tobi

rpruen · Post by **rpruen** » Mon Jan 10, 2005 7:56 pm

That would be very usefull.

Thanks

Richard

tobi480turbo · Post by **tobi480turbo** » Mon Jan 10, 2005 8:06 pm

When I see him the next time IÂ´ll ask about it ... or probably call him tmorrow to ask him to take a look at his documents

regards

Tobi

MatBat · Post by **MatBat** » Sun Feb 13, 2005 6:53 pm

Bringing up an old post, but my clutch definately slips now, early type with 230ish bhp and double the torque tends to do that, grrrrr.

Any ideas on upgrades for the early type yet? though reading my service history indicates that the clutch is original at 119,000 miles so maybe just a new volvo clutch would surfice?.

chris1roll · Post by **chris1roll** » Sun Feb 13, 2005 7:43 pm

I was about to bring this old thread up too....

seems i spoke too soon, my clutch is now slipping again under modified boost.
With a standard ECU in it, it is fine. grrrrrrr.

martinholmesuk · Post by **martinholmesuk** » Sun Feb 13, 2005 10:58 pm

MatBat wrote:Heh could only be a matter of time!

DOH!! seems gearbox questions are starting to pop up just when I thought the autobox was the only one with problems.

MatBat · Post by **MatBat** » Sun Feb 13, 2005 11:44 pm

Right, i ahve been communicating with a chap that does clutches for the R5 GTT boys, as previously noted they use the standard 400 series turbo clutch up to 200bhp, I told him this would be no good for our application, he has said that he should be able to get "helix" clutches to do something for our needs.

Will keep things posted.

chris1roll · Post by **chris1roll** » Mon Feb 28, 2005 7:29 pm

Right, its decided now that even standard boost is too much for it, so i shall be nursing it to and from Birmingham on Saturday. Probably make it even if i didn't, but getting stranded 200+ miles from home wouldn't be funny!

Anyhoo, been looking online, and hae found:
http://www.motorsportworld.co.uk/frame- ... utches.htm
Have a black diamnd "power clutch" for Â£131.26 inc VAT and delivery, or an EBC one for Â£151.71 all in.

Needfor speed were much more expensive, 132+almost 19 quid for delivery, for the black diamond one.

Now, these are only for the early type clutch, presumably they decided that the later type couldn't be bettered for a sensible price?
Therefore, Is it worth getting an "uprated" one over the proper volvo EARLY TYPE clutch, and if so, does EBC deserve the extra Â£20?

dragon · Post by **dragon** » Mon Feb 28, 2005 8:30 pm

This all makes me nervous, and I really could do with finding an uprated one that betters the LATER type clutch, just to be safe... If anyone comes across them whilst investigating, please PLEASE please shout up on this thread

Bramdeman · Post by **Bramdeman** » Mon Feb 28, 2005 8:59 pm

Just wanted to say....clutch also starting to go

early type clutch with richards ecu mod. Damn thing is 20000km's old

rpruen · Post by **rpruen** » Mon Feb 28, 2005 10:14 pm

dragon wrote:This all makes me nervous, and I really could do with finding an uprated one that betters the LATER type clutch, just to be safe... If anyone comes across them whilst investigating, please PLEASE please shout up on this thread

Gaz,

I'm one step ahead there. I have already got a solution that is a little stronger. It's the standard pressure plate (volvo one) with a more grippy plate.

The next step up is a racing clutch, and that will mean re-working the flywheel.

Richard

vins480t · Post by **vins480t** » Mon Feb 28, 2005 10:33 pm

whats the main problem?
is it to little friction between the plates and the flywheel
or
no enough springpresure to press the plates on the flywheel?

vins480t · Post by **vins480t** » Mon Feb 28, 2005 10:36 pm

found this brouwsing my old favorites
http://www.bbperformancetuning.co.uk/pr ... p?id=14959

rpruen · Post by **rpruen** » Mon Feb 28, 2005 10:46 pm

vins480t wrote:whats the main problem?
is it to little friction between the plates and the flywheel
or
no enough springpresure to press the plates on the flywheel?

All this is for the new type 480 turbo clutch BTW, the old type has a smaller plate, and also a weaker spring.

It seems that Volvo have the strongest spring that is available without going for a full racing clutch. However they choose a very hard (long life, but poor grip) material to face the plate. I have the volvo late type housing with a 2L renault clutch plate that should grip much better, but have a shorter life.

Volvo clutches last for over 140k miles, so even if it's less than half that I'll be happy so long as it doesn't slip.

Richard

vins480t · Post by **vins480t** » Mon Feb 28, 2005 10:54 pm

ok so for as far known now a renault plate is the softest plate standard to work on a volvo clutch
I have good experience with the renault valeo plates
seems like they have a bit meor graphite in it giving more grip

rpruen · Post by **rpruen** » Mon Feb 28, 2005 11:01 pm

vins480t wrote:ok so for as far known now a renault plate is the softest plate standard to work on a volvo clutch
I have good experience with the renault valeo plates
seems like they have a bit meor graphite in it giving more grip

That looks good from my point of view. I have a Volvo marked, but made by ZF Sachs housing and valeo plate. Hopefully the two will work together to provide more grip.

It's also a surprisingly cheap option, the whole lot cost just over Â£80.

I hope it works ok, and I'll know soon.

Richard

vins480t · Post by **vins480t** » Mon Feb 28, 2005 11:04 pm

well the valeo is almost the cheapest in holland
sachs cost ya doubble
but for now it works just fine
the isnt any for the 480 tho
but the R19 1.9 fitts ok
have to loopup the partno tho