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Thread: decat = much more expensive than you might think?? Predicted power gains?

  1. #1
    Regular Member smiley-sri's Avatar
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    Default decat = much more expensive than you might think?? Predicted power gains?

    I can get a decat done on my 120 cdti for around £30.

    Now i have already de-resticted my airbox, and i have a caterman box fitted aswell.

    The turbo is slightly louder and slightly higher pitched than before. This tells me its spinning faster.

    Now with a decat, it will let it spin even faster, but how long before it says no more?

    The turbo has done 86,000 mile so its been well used.

    Also ive heard reports that decatting the tdci mondeo released 30 bhp.

    So does this roughly mean with my cdti ----

    originally = 120bhp
    Air box mod = 125bhp
    caterman = 150bhp

    Say we get 25 bhp with the decat that'll be around a 175bhp out a 120 as an estimate? Or do you think im being well too hopeful?

  2. #2
    Regular Member ditchp's Avatar
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    Vehicle : Vectra cdti estate

    Trim : Get a

    Engine : Dirty diesel

    Year : 2006

    Default

    i had 167.5 bhp out of my 120 when had a K&N panel filter, air box mod, tuning box and twin exhaust set up with no rear boxes, just centre box and cat, and now without the tuning box it's running 144 bhp

    hth
    Midlands Mod Shop - NFFC.

  3. #3
    Regular Member smiley-sri's Avatar
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    So 170 is a pretty fair estimate.

    The new red box from Dtuk claim 170bhp from the 120bhp.

    So this box

    + air box mod
    + K&N filter
    + Decat
    + free flow exhaust
    + A good service and tlc

    ====What sort of bhp???

  4. #4
    Regular Member smiley-sri's Avatar
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    What sort of torque above anything else?

  5. #5
    Regular Member Celes's Avatar
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    Vehicle : Opel Signum

    Trim : Sport

    Engine : 3.0 CDTI

    Year : 12/03

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    I didn't notice any difference when I decatted my V6CDTi.

  6. #6
    Regular Member Danwells72's Avatar
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    Vehicle : Vectra

    Trim : Sri

    Engine : 1.9 cdti 150

    Year : 2004

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    I noticed a good difference when i decatted my dti

  7. #7
    Regular Member storm's Avatar
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    Quote Originally Posted by smiley-sri View Post
    I can get a decat done on my 120 cdti for around £30.

    Now i have already de-resticted my airbox, and i have a caterman box fitted aswell.

    The turbo is slightly louder and slightly higher pitched than before. This tells me its spinning faster.

    Now with a decat, it will let it spin even faster, but how long before it says no more?

    The turbo has done 86,000 mile so its been well used.

    Also ive heard reports that decatting the tdci mondeo released 30 bhp.

    So does this roughly mean with my cdti ----

    originally = 120bhp
    Air box mod = 125bhp
    caterman = 150bhp

    Say we get 25 bhp with the decat that'll be around a 175bhp out a 120 as an estimate? Or do you think im being well too hopeful?
    i want mine done for £30 lol whers that getting it done?

  8. #8
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    does it really make a difference i have a dti with a tunit box. doesthe cat help with compression or does a diesel need it. car is sitting at 125bhp at the mo.

  9. #9
    Regular Member smiley-sri's Avatar
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    Decating a turbocharged car should help with power gains allthough it could gain bhp I cant see much in the range of torque being increased.

    I would be getting it done at the local do anything for back hander garage although I would have to sorce the pipe from else where. Which is alredy sorted......Mr.tyres lol.

  10. #10
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    Thumbs up

    Quote Originally Posted by smiley-sri View Post
    I can get a decat done on my 120 cdti for around £30.

    Now i have already de-resticted my airbox, and i have a caterman box fitted aswell.

    The turbo is slightly louder and slightly higher pitched than before. This tells me its spinning faster.

    Now with a decat, it will let it spin even faster, but how long before it says no more?

    The turbo has done 86,000 mile so its been well used.

    Also ive heard reports that decatting the tdci mondeo released 30 bhp.

    So does this roughly mean with my cdti ----

    originally = 120bhp
    Air box mod = 125bhp
    caterman = 150bhp

    Say we get 25 bhp with the decat that'll be around a 175bhp out a 120 as an estimate? Or do you think im being well too hopeful?
    dont know about you lads, i had a power loss with my 20 dti, , changed boost sensor, cleaned inlet track,( full of carbonised gunk), it started goin v well, then i de-catted it, wow, what a difference, and its done 194000 miles , got a box aswell, but havent fitted it yeet, canny wait, but hell yeah, de-cat definately

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