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Thread: MPG Booster

  1. #1
    Regular Member MattW's Avatar
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    Default MPG Booster

    Autoexpress have done an article on the plug in tuning boxes

    http://www.autoexpress.co.uk/news/au..._boosters.html

  2. #2
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    The facts in the story are somehwat questionable. The mpg difference should not be checked via fuel comp as boxs often throw the figures out. I imagine the power gain was greater than suggested as the std car figure will be incorrect if they drove there with box on (always recommended so that the ecu learns) then took it off for the std run, as the prssure in the rail wouldnt have dropped off giving a unnatural power figure. On saying that I am getting 35% power and torque uplift over std and circa 10% better mpg with my box currently. (DTUK)

  3. #3
    Regular Member Ste's Avatar
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    Vehicle : Jaguar XF 3.0D V6

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    Default

    It sounds like it simply modifies the rail pressure value, this mis-reporting then changes the high pressure pump operation.

    If the rail pressure is higher than reported, more fuel will be injected than the ECU calculates, and therefore the onboard fuel economy computer will be wrong. It only measures 'commanded fuelling rates' and not actual fuelling rates.

    Personally, I don't think they have 'proved' anything. A much longer use pattern would be needed to statistically prove a FE benefit.

  4. #4
    Regular Member Penfold101's Avatar
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    Plus you'd have to drive it for a couple of years to just break even. If you want more power, do a proper job and remap it. If you want better economy, change your driving style or your car for a more economical one...

  5. #5
    Full Member Big Sig's Avatar
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    Yep as said, boxes through the computers way out. Only way to work that out is the old fashioned method over a decent milage for a good sample.
    Now I need a turbo to keep up!

  6. #6
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    Yet another quality AutoExpress article. Sarcasm mode off.

    DPT has also struck a deal with Titan Travel, a firm specialising in trips to sporting events such as the Le Mans 24 Hours. All 160 of its VW minibuses have been kitted out – and drivers have reported an eight per cent reduction in emissions.
    Oh really,, how did they do that then?

  7. #7
    Regular Member Ste's Avatar
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    Reduction in personal emissions, like farts ? ? ? ?

  8. #8
    Regular Member john_k_sri's Avatar
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    " a ‘plug and play’ solution that doesn’t alter your car’s ECU or remap the engine."

    For only £350 .....you're having a laugh.

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