Originally posted by ZACK
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HDI90 remapping
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Someones Showing Off In Their 200bhp THP lol
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Viezu
Say:
Will my fuel consumption go up after an upgrade?
No, in fact quite the opposite. Even on a performance tune, if you continue to drive the car in the same way as you did before the upgrade, your fuel consumption will probably improve.
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Originally posted by studly View PostMaybe i'm being a bit thick but i cannie see how getting more horsies also increases fuel economy.....
The official figures for the 150 THP and the Racing show that the increase in power also improves the fuel consumption and also more importantly the CO2 emissions.
First figure is THP the second figure is Racing
Urban Cycle 30.1 32.5
Extra Urban 55.4 57.6
Combined 42.2 44.1
CO2 (g/km) 155 149
The 149 g/km puts the racing in a lower car tax bracket than the THPLast edited by Arlow; 20-04-2011, 20:50.DS3 Racing, also available in White!!!
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Well He Fails At Life lol
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The situation is - not every Viezu dealer has a tri-core system therfore cannot map the hdi90 without it
For those of us who do - well we can
Fuel consumption is improved by clever adaptation of torque limiters (38 limiter maps in the ds3 90hdi )
also higher turbo boost creates more air in the combustion chamber
more fuel ( only a tiny tiny bit ) at a higher pressure means that fuel will atomise more comprhensively in the combustion chamber
therfore a more thermally efficient combustion is achieved ( blimey look at me with all the long words)
the quantity of diesel in each cyclinder on each combustion is aproximately one tenth of a drop so an increase of say 3% on fueling is TINY and would only be from about 1500rpm up
of course if you then use all the extra power and drive like a cooperkillereeeeeeee madman you will not achive better fuel efficiency
in the real world 10-15% is achievable
I have seen 25% improvements admttedly on a Volvo xc90 ( wash my mouth out with soap and water)
but thats outside the norm
hope that helps Happy Easter Yall
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