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Thread: Are remaps kinder to a diesel engine than TB's?

  1. #1
    Regular Member Hideous's Avatar
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    Vehicle : Insignia

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    Default Are remaps kinder to a diesel engine than TB's?

    To everyone who knows: -
    Do you think remaps are kinder than tuning boxes on diesel engines?
    Don't they both do the same thing at the end of the day i.e. increase injection pressure by putting more stress on components?
    Probably neither are the best option for reliability, that goes without saying.

    Couldn't be happier with my spider TB... had to take it off for a service recently, and the car felt lifeless in comparison on the journeys to and fro.

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    [Ex]Admin Duncan's Avatar
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    A box works by simply increasing fuel pressure, nothing more than that. A proper remap will alter other variables like turbo boost etc so in the long term it will be kinder as it's working a number of variables in harmony, not just whacking in more fuel with no regard to anything else.

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    Regular Member fellie's Avatar
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    what Dunc said..

    the old school turbo diesel tuning was an increase in boost pressure ( adjust wastegate actuator rod ) and increase fuelling / advance the pump timing / weaken the boost sensor device on pump ..

    a remap does exactly what Dunc said ..
    not sure if it goes to the extreme of adjusting the pump timing ... but boost pressure and fuel pressure should be better matched on a remap compared to a TB ..

    you pays your money as they say .....

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    Ex-Staff Full Member ian_c's Avatar
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    Default

    there are boxs now that are faster and better then some remaps and there is new generation of boxs coming out soon and I will be doing some more testing with them

    I have do testing with a good few box dealers over the past two years
    (top 3) and rolling roads which I prefer to find a true read out
    so watch this page
    Last edited by ian_c; 1st June 2007 at 21:37.

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    Regular Member fellie's Avatar
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    so these new boxes increase boost, hence air, aswell as fuel pressure ?

    who do you consider the top 3 ?

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    Regular Member Caterman's Avatar
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    Tuning boxes are getting more sophisticated lately. Even the good old cheapo "caterman special" does not kick in until the engine has warmed up to save stressing the engine.

  7. #7
    Ex-Staff Full Member ian_c's Avatar
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    tunit of chorley
    DTUK
    Diesel tunit UK

    and tonys box is cheap

    there will be a lot more boxs coming onto the market
    this is a money spinner

    the remap market on 19 s and the 3.0 l have slow down for some reason for performance

  8. #8
    [Ex]Admin Duncan's Avatar
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    Quote Originally Posted by fellie View Post
    so these new boxes increase boost, hence air, aswell as fuel pressure ?
    Nope. They are certainly becoming more intelligent - in terms of when (i.e. once warm) and where (revs) they start to add more fuel (and how much fuel as well) - but at the end of the day they still only increase fuel pressure - simple as that.

    If you want something that will alter boost pressure, and other variables, to all work in harmony - it's a remap all the way.

  9. #9
    Regular Member The Doc's Avatar
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    Quote Originally Posted by Duncan View Post
    Nope. They are certainly becoming more intelligent - in terms of when (i.e. once warm) and where (revs) they start to add more fuel (and how much fuel as well) - but at the end of the day they still only increase fuel pressure - simple as that.

    If you want something that will alter boost pressure, and other variables, to all work in harmony - it's a remap all the way.
    Agreed.

    The latest boxes from all the manufacturers Ian mentioned are superb bits of kit, but you can't beat a good ol' map!

  10. #10
    Ex-Staff Full Member ian_c's Avatar
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    dont be to sure

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