Shocked at E46 320d remap

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  1. Shocked at E46 320d remap 
    #1
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    orbix's Car Details
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    My first post and maybe a controversial one...

    I have recently had my E46 320d remapped by a known reputable tuner. (I’m not saying ).

    The car is now a pleasure to drive and I love the new power.

    However I was a little shocked, even a little cheated to find out that the tuners don’t create the maps themselves,
    they send the stock map off to someone with a note saying what I want from the map and then wait for this guy
    to send them back a rewritten map.

    So in fact these “tuners” are actually nothing more than “flashes” and all the credit should go to the guy writing
    the maps. A bit like those companied that sell the Powergate type devices.

    Is this normal for companies calling themselves “tuners” to do?

    I thought I was paying for a guy to write and test the map in my car. I can’t help thinking that regardless of what
    I told the tuning company I wanted from the map I would receive the same map anyway.

    I know I paid for their “service” but it wasn’t the service I was expecting.
     
     

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    #2
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    Martyn D.'s Car Details
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    It depends in how much you pay I guess, live custom maps would cost a lot more than a standard map, I'm sure the forum tuners with their wealth of knowledge will be along to explain the ins and outs of mapping.
     
     

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    #3
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    M3 TIM's Car Details
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    unless you are having a live remap on a rolling road then all remaps are flashes of tuned data for your car.
     
     

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    #4
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    xxxxxxxxxxxxxxxdane36323's Car Details
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    I understand fully what you are saying and its a shame that you are slightly dissapointed in the whole remap service experience. If you went to a rolling road live tuner then it would be the person there that wrote the map and even in some cases where maps are flashed to your ECU. A lot of flash tuners will use a reputable person that they are in business with to write maps as far I am aware. If you are happy with the map then I wouldnt be too bothered where the map came from
     
     

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    #5
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    It is fairly common, most tuners will simply send off a file to someone who knows, and then install it.
    It is something that is often done by people that cover a large range of cars, as there simply isn't time to decypher the code inside and figure what what to change.

    There's no harm in doing it like that. There is rarely any significant differences between engines that need custom work done to them.

    Any specific custom tuning could double the cost and provide 2-3 bhp more if lucky. In most cases, the value drops significantly for this.
     
     

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    the confusion comes from the term "remap" when it is just "chipping" it with an off the shelf map or chip that has been sold in volume. a custom remap is only needed for individual modified cars
     
     

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    #7
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    I know what you mean. I guess in a way that a prooven map that's been used and refined must be a good thing? Unless your car is hugely modified why would you need a custom map?

    Ian
     
     

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    #8
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    Thanks for your replies.

    Fairly normal then.

    I am surprised just how good the map is. It makes me think I should modify my car further.....I knew I would regret not buying the 330d.
     
     

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    #9
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    I myself like most tuners/flashes have a databank of files of both stock and modified. But each and everyone of my BMW in particular all receive a modified map which has been modified from the stock file off the customers own vehicle. This is regardless of the fact that I may already have a modified map for that vehicle.
    however theres nothing wrong with using a file which you've already used, (it doesn't degrade over time) as it is usually a proved and tested map, but with BMW's and the newer models in particular, it is far better to make the map from the original stock map to ensure things are going to be correct. The MAP maker knows certain variables which can be adjusted, but some know more than others which is why again I stick with my mate Jason from BWchiptune. He's experience with bmw's is hard to beat, and I've never had a single comeback from any customers because of this. Jason literally spends hours and hours perfecting his work to get the best he can. Yet he emails me the modified files for my customers, so there really is no problem. Oh and within certain limits even modified maps that take into account other modifications can be made as the variables are known already. And the only way to get this any better is to basically be on the dyno adjusting as you go so to speak. But as already said, it will cost alot more.
     
     

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    #10
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    It's business, you think when you go to the supermarket it was all made in store? Yes, the 'remappers' might not be custom mapping your car right there and then, but you're paying for their service, their knowledge that they know how to get the best out of your car and their equipment of course!

    You could always become a remapper yourself, but then you need to build up a good rep, a good source of quality maps and of course, the technical know how of how to do it all!
     
     

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    APtuning (02-07-2011)

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