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C30 / S40 & V50 '04-'12 / C70 '06-'13 General Forum for the P1-platform C30 / S40 / V50 / C70 models |
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s40 2.0d tuningViews : 18887 Replies : 141Users Viewing This Thread : |
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Aug 11th, 2014, 21:52 | #141 |
New Member
Last Online: Aug 27th, 2014 07:19
Join Date: Nov 2013
Location: York
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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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2008 Volvo S40 2.0D R Design Decat/4 Pot Front Brembo/Eibachs/ST IC |
Aug 28th, 2014, 09:35 | #142 | |
08 Volvo S40 SE Sport R-D
Last Online: May 6th, 2016 23:08
Join Date: Jan 2011
Location: Gloucester
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Quote:
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. 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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Volvo S40 SE Sport R-Design + Winter Pack |
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