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Thread: Modified ECUs

  1. #1

    Modified ECUs

    I hate to be the party pooper on the remap side, but as per usual non of the tuners who mess with your engine map tell you the potential issues it may cause, which "imo" is very wrong.

    The standard TD5 exhaust manifold is not the best product in the world, when re-mapping, the EGT temps are significantly increased and the resultant effect is to warp the manifold and snap the studs holding it on. Some tuners even make / supply a ceramic coated manifold, but this has been proven to not work either.

    Land Rover or ANY engine manufacturer come to think of it spend MILLIONS and MILLIONS of pounds in engine development / testing, which is something the "aftermarket" tuner simply cannot do. Having the software to tweak here and there and fire it off for $340 is all to easy money, infact for what it is its dam expensive "imo", even more so if the user is adding it to the vehicle.

    Please note this is not a "personal" attack on anyone, I just feel very strongly that those that "mess" with your engine, should be more up front of the issues it may cause, and if they are confident in it's "effectiveness", they should offer a warranty on any resultant work thats needed because of the tune thats been applied.

    As with anything, you pays your money and you make your choice, yes you may go faster and even gain a few mpg, but be aware of the other potential issues.

  2. #2
    Join Date
    Mar 2008
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    Hi,

    I thought that they could warp and snap the studs even with the stock ECU.

    Plenty of posts around the traps that show how to cut the webbing or remove it altogether to prevent the prob.

    cheers, DL

  3. #3
    Join Date
    Mar 2008
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    Interesting post U.P

    Most manifolds warp even on stock ECUs... Especially if towing...

    And reputable tuners spend a lot of cash on equipment and time developing the tunes so the cost is more than reasonable for the expenditure

    A good tuner will always advise clients of potential pitfalls...
    5.... 4.... 3.... 2.... 1....

  4. #4
    Join Date
    May 2007
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    I think U.P has a good point.

    One of the main reasons I had my ECU upgrade done was because of the claim that EGTs remained virtually unchanged. I did not believe this to be true on face value and fitted the pyro as a matter of course.
    The pyro quickly proved the EGT claims to be false.

    Dont get me wrong, I am happy with the upgrade, but it wasnt always a user friendly upgrade until I did the extras, like, intercooler and boost mods.

    Tombies post is also on the money.

    The extra mods were suggested as being worthwhile but not essential by the ECU supplier.
    In reallity the extras are essential for longterm reliability and though it may cost some sales of an ECU upgrade, the customer should be told the full mods required and then reminded that it is on their head if they choose to go only with one aspect.

    I dont accept that an engine is already at its peak prformance from the factory, as they are on a production line and have emissions and standards to consistantly meet and reliability to ensure across the entire production line, therfore most factory motors have a quite large spectrum for improvement. (ignoring local laws, emmisssions, noise etc)

    Like anything modified, the owner must have a good understanding of the function/s of components and the ramifications/ limitations of any proposed mods and their flow on effect to the rest of the vehicle.

    BTW std exhaust manifold studs on 2 modded Td5's, all good big loads and kms, no cracks , no breaks. Correct torque and sequence is a big factor.

    Many folks believe that they can bolt on/plug-in an item and retain fuel economy, component life without any trade off or that it will transform there vehicle into an F1 machine. They are usually the twerps you see at Maccas on a Friday night doing burnouts and looking like tools.

    cheers
    Cheers


    Statistically 6 out of 7 Dwarfs are not Happy

  5. #5
    Im not to sure whether your post was in reply to mine..........but......I never said an engine is at "optimum" performance out the factory, and fully aware it is not because that simply would not work in all climates / conditons etc, which is why as you stated its "as it is"..............the point is tho, to develop and test a tune "properly" would cost a LOT of money which none of these "tuners" have, so "you" are basically the "testbed" for them.

    If your happy to do that, then fine its a personal choice each individual has to make.

  6. #6
    Join Date
    Aug 2009
    Location
    Athens - Greece
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    200
    Quote Originally Posted by strangy View Post
    I think U.P has a good point.


    The extra mods were suggested as being worthwhile but not essential by the ECU supplier.
    In reallity the extras are essential for longterm reliability and though it may cost some sales of an ECU upgrade, the customer should be told the full mods required and then reminded that it is on their head if they choose to go only with one aspect.


    cheers
    I agree,although i am usually running a stage 1 upgrade,i think that someone have to buy the whole package.

    Some time after the initial tuneup i ended with 3 broken studs maybe an ccident waiting to happen,now i use the stage 1 tune only on winter time and standard on summertime,till i am conviced that a bigger intercooler does worth the money or it won't work as i don't want to go stage 2 or increase the boost pressure.

  7. #7
    Join Date
    Aug 2009
    Location
    Athens - Greece
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    200
    Quote Originally Posted by Urban Panzer View Post
    that simply would not work in all climates / conditons etc, which is why as you stated its "as it is"
    That also applies for ecu upgrades,for my country's (Greece)weather conditions and diesel quallity,i don't think that i can avoid high EGT's and black smoke..
    At the beggining(when the first summer arrived) i thought that it was something wrong with my disco,i started replacing parts (MAF,hoses),cleaning intercooler-sensors..
    I tested my tune for a year and a half so now i know - when the weather gets hot i go back to standard tune and no more headace..

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