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s40 2.0d tuning

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Old Aug 11th, 2014, 21:52   #141
Jord
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Clutches are killed via torque. The higher the torque rating and from and higher rpm for the clutch to engage flywheel glazes and damages friction plate.

Many new cars including S40 2.0d use dual mass flywheel. 2 part flywheel(dual) first plate has freeplay to intially engage flywheel which then engages 2nd part(when freeplay ends) This is designed for smooth gear change. Again this is killed via torque and high rpm engagement with clutch.

To summarise remapped vehicles, Especially diesel achieve higher Torque ratings aswell as BHP. Traffic light racing will lower your clutch/dual flywheel life drastically where as doing power pulls from 3rd gear doesnt put as much stress on components.

Hopefully that explains.
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Old Aug 28th, 2014, 09:35   #142
VenomS40
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Quote:
Originally Posted by Jord View Post
I have 2008 model and EGR is as said on mine. But fair enough, from personal experience on VAG scene for some reason there can be variation between ECU's. Master reset doesnt change that.
This is something I would like to get done but so far apart from Internet forum chat (which we all know can be utter garbage at the best of times) is all that I've got promoting this. Volvo tuners and Volvo technicians alike have either said they have never heard of it being done or advised to leave it instated and working.

This whole area around EGR seems to be very much hear say and little proof of power increase. Ok, so in theory a lower intake temp is good, that's obvious but little to no testing apart from other manufacturers which act differently to our cars is all we have on test and data.

Quote:
Originally Posted by Shaunyshaun1234 View Post
Hi Venom!

What do you mean by lazy driving style etc?

I'm looking at getting an mte remap and don't want to bugger my dmf!

My car is a C30 2.0d on 78k
How it was explained to me by HLM was that not to be lazy and select that lower gear rather than letting the torque do the driving. Lets say you're driving along in 4th at 40 and give it a boot full. You will overwhelm the DMF and as described, in the assembly there are springs and what you will do is the torque the engine summons up will overwhelm the springs forcing them to the max limit and you'll get a judder which is the spring hitting its max limit and decompressing again fighting the torque back. This is what will kill the DMF in no time at all.
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