2.4D (2005 on) Clutch/DMF Rica e-power 205hp

[Andy]

OK lets add some first hand experience to this debate.

I am driving a 2003 V70 D5 with 163 euro 3 engine. This was pushing out 210bhp and I had clutch slip from a relativity new clutch.

In order to achieve the 210 I had the first cat removed and was injecting 50/50 meth/water.

In order to rectify the issue I bought another 850 T5, as mentioned above, to play with and then set about de-tuning the D5 so it was less fragile.

Adam at RICA took my dyno plot and had some adjustments made to reduce boost (on my request) and reduce mid range torque.

I then had a C G Motorsport six paddle clutch fitted which I should have had fitted first time round.

I think its this one best you check:

http://www.clutch-specialists.co.uk/...ce-clutch-kits

This clutch is not going to slip but may be ripping my DMF to shreds. It is not good at stop start city driving and is a bastard to reverse with.

So to sum up unless your wallet is a bottomless pit just get your map altered.

[Nocomplaints1977]

Originally Posted by t5_monkey

torque is just twist... the rpm isn't that relevant and the firing 'loading' should be absorbed by the DMF.

Thats the idea but RPM is relevent for the torque loading.
Peak torque is created quicker and further down the rev range, you may be making 300ftlb by 2000rpm but a diesel will be making peak torque by then with the associated torque climb before that creating a higher loading per given cycle.
This then brings us to the expensive bit, the DMF.
The DMF can only cope with so much torque. From experience with Redbricks car the DMF reached it's limit usually around where torque peaks, hitting its' limit quite literally, the DMF stops absorbing and transfers everything to the clutch which shocks loads it and makes it slip. In Redbricks case as few hundred rpm later as the peak passes and levels the DMF would recover and the clutch with it.
Firing loading is therefore relevant as the DMF will only absorb so much leaving the clutch 'vunerable' for want of a better word.

[5cilinder]

Slipping dont seem to occur anymore!
How can that be?
When it was slipping the oil and coolant was just at operating temp and raining
Now i had driven a bit longer before pushing it
Can it be that if the whole engineblock is warm then the metal is expanded more and so is the pressure on the clutchplate?

Or is it possible that there is/was something leaking on the plate and that after slipping the oil/fluid was burned off

[Andy]

All doubtful IMHO.

Had you allowed the car to adapt before you posted the original question?

[5cilinder]

What do you mean by "adapt" ?

[outnumbered]

the car has to learn that it has been altered, ie take it nice and easy when the MAP is first installed for the engine system to learn the new settings. most people get in then boot it straight away .
mike

[5cilinder]

I knew it has to learn a bit, but can that cause to generate more torque than is programmed in at first? and how long will that take?
The first ride with warm engine after the remap didnt gave slip
Second ride with colder engine and rain gave the slip
third ride with warmer (longer driven engine) no slip

[bemuzeduk]

I had exactly the same problem on my D5 manual, old clutch couldn't cope with the increased torque as it came away from the RICA tuner.

I had a 'cheap' replacement of clutch & DMF (about £1000) at Autocentre, which only lasted about 20,000, before it needed another.

I was advised afterwards that the official Volvo ones may cost more, but are stronger. I have also been told that you can get heavy duty clutches, but I was told that AFTER I had swapped to a geartronic V70 to get away from DMF problems.

I had the geartronic remapped and then had to have a recon gearbox after that packed in.

I think the lesson is that if you are going to put 30% more power through and old car that has done 60,000 plus miles, expect problems, and budget for replacement parts.

[5cilinder]

i downtuned it a bit with good results

[volvozx6r]

Easy on the juice at low revs or it will destroy your clutch but it does seem like its your clutch is worn. They are pretty much bomb proof. Remap as much as you want the clutchs will take it. its got nothing to do with the maps!!