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  1. #481
    "Stick a V8 in it!"

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    Its fine when you want to be a hooligan, but not when you want to make fast progress up a b road or whatever.

    Given that both turbos will produce the same top end figure, i really cant see any justification to using one which will give you a higher boost threshold and make the car generally worse to drive.

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  3. #482
    "Stick a V8 in it!"

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    Quote Originally Posted by Blue_Thunder View Post
    Nealry at 500 posts now. To summarise, has the turbo been upgraded yet?



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  4. #483
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    Quote Originally Posted by aragorn View Post
    Its fine when you want to be a hooligan, but not when you want to make fast progress up a b road or whatever.

    Given that both turbos will produce the same top end figure, i really cant see any justification to using one which will give you a higher boost threshold and make the car generally worse to drive.
    when compared to t28?
    Drizz Developments - Audi A4 Avant Quattro Sport

  5. #484
    "Stick a V8 in it!"

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    I've been trying to find escos and sierra cosworth power plots to highlight the difference, but ye a T28 will feel far more lively.

    If you consider that when you go "Balls out" with both turbos, there wont be much difference as your right up the revs and theres plenty exhaust gas to get the turbos moving.
    Its the more normal driving it will hurt you. Needing an extra 1000rpm to get the engine to start producing meaningful torque will make it feel like a dog. The only reason the 1.8T is so tractable at the moment is because the turbo is tiny and starts getting to work at 2krpm. Sitting in 5th gear on the motorway at 2500rpm and ending up offboost just wont be any fun, and having to constantly downshift gets tiring really quickly.

    2000 A4 1.8T Sport Quattro Avant, Berry Pearl
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  6. #485
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    hokey dokey. So a Jap T28 then...
    Drizz Developments - Audi A4 Avant Quattro Sport

  7. #486
    Project Plush

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    An S14 T28 seems to have a bolt on inlet is that right?
    Drizz Developments - Audi A4 Avant Quattro Sport

  8. #487
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    Yarp 2 bolts in IIRC

  9. #488
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    OK something thats easily made then. Cheers!
    Drizz Developments - Audi A4 Avant Quattro Sport

  10. #489
    "Stick a V8 in it!"

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    just get it from the donor?

    2000 A4 1.8T Sport Quattro Avant, Berry Pearl
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  11. #490
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    Not if you buy just a turbo on a well known auction website
    Drizz Developments - Audi A4 Avant Quattro Sport

  12. #491
    "Stick a V8 in it!"

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    Ye

    Thing the 200sx comes with a 90degree elbow on it as standard, i've seen streight bolt on stub before too though.

    2000 A4 1.8T Sport Quattro Avant, Berry Pearl
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  13. #492
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    I can easily fabricate one to suit the car so its all good. Manifold to buy now
    Drizz Developments - Audi A4 Avant Quattro Sport

  14. #493
    jcb
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    Quote Originally Posted by aragorn View Post
    I think a cossie T3 on a 1.8T making 250hp is going to be very dissapointing. The T3 doesnt spool till over 3k on a 2.0 cosworth, so its likely to be worse on the 1.8 audi lump.

    T3 just denotes the bolt pattern of the turbo.
    the original sierra cosworth wasn't some rocket ship with a massive turbo.
    just over 200bhp/270NM from a 2l
    peak power at somewhere near 6k and peak torque at 3500 or 4500 depending on model.
    thats no worse than the 1.8t in 180bhp form.

    a similar sized T03 Garrett from a YBB engine on a 1.8t chipped to 250bhp will perform a lot like a KO4 or possibly a KO4 hybrid

    still I am with you on it not being a good choice, it is a 20+ year old turbo design without the massive technological improvements in vane design, 360 bearing, lubrication and cooling that turbo build in the 2000's have.

    T25 or T28 pattern turbos are readily available second hand and will be more than enough for your needs and give you a common manifold bolt pattern to upgrade to much larger 28 or 30 frame Garrett turbos if you get greedy.


    and yeah, Lee, you have had a whole weekend, this thing done yet?! [gets coat]

  15. #494
    2000 a4 1.8tqs-yellow

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    pulsar gti-r t28 has a 2 bold flange on the inlet and a 3 bolt on the outlet of the cold side. good for about 330bhp on a pulsar. i had a t28 with a bigger comp wheel on my pulsar and it made 315bhp at 1.1bar. got full boost about 3500 rpm if i remember right.

  16. #495
    Lee Goodall's Avatar
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    Quote Originally Posted by Blue_Thunder View Post
    Nealry at 500 posts now. To summarise, has the turbo been upgraded yet?
    Surely if you've read the nearly 500 posts you'd know that this is the second featured turbo upgrade and also featuring a new car.

    To summarise not yet ha.. roll on 1000 posts

  17. #496
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    Quote Originally Posted by jcb View Post
    and yeah, Lee, you have had a whole weekend, this thing done yet?! [gets coat]
    Mate I'm following your example.. good things come to those who wait hey?!

  18. #497
    jcb
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    yeah and I am waaaay beyond you for delays. I bought the hardware for my block and the turbo back in Nov 2007!!!
    better be bloody good considering the wait!

    I have just finally broken out the TIG welder and am embarking on the manifold, will update that when I have something to update!! (christmas next year probably!)

  19. #498
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    Getting there now (hoses require some trimming)..


  20. #499
    jcb
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    MAF in stock location with that inlet?

  21. #500
    Lee Goodall's Avatar
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    The MAF will end up close to the stock position but unfortunately the turbo would be touching the airbox if I kept it so that's got to be removed anyway.

  22. #501
    "Stick a V8 in it!"

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    Notch the airbox? :D

    Drizz: As for injectors, Lee is using a set of saab reds as commonly fitted to c20lets, they're good for ~300hp so should be pretty well matched.

    If you want more you can plump for a set of VXR chappies, as they're rated quite a bit higher.

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  23. #502
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    Quote Originally Posted by aragorn View Post
    Notch the airbox? :D
    With increasing the diameter for the MAF and notching the box at the side it'll just end up with a big hole in it.

    Anyway a performance filter adds about 20HP.. common knowledge

  24. #503
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  25. #504
    jcb
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    that is a bargain!

  26. #505
    Lee Goodall's Avatar
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    Bet that wont be around for long... Mark?? Sell the outlaw and jump on that.

  27. #506
    Neutral

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    seriously bloody tempting aint it!

  28. #507
    Lee Goodall's Avatar
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    Quote Originally Posted by davkav View Post
    seriously bloody tempting aint it!
    If I didn't already have my kit I'd snap it up!

  29. #508
    gmx
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    Quote Originally Posted by Lee Goodall View Post
    I have purchased a cheap/copy Audi TT 225 (APX engine) MAF sensor/housing which I will be using to house my original sensor. Not as good looking as the metal MAF housing but it'll do the job nicely.

    The TT MAF sensor was only 24.95 with free delivery.. bargain I say.
    Did your sensor drop right in??

    Can you tell me where you got the housing from?

    Quote Originally Posted by davkav View Post
    at the moment I have a K04 and injectors in. Hit the dyno a while back and made 220bhp with 315ft/lb. Wasnt overly happy but theres a lot of tweaking to be done after 4500rpm. Since then the clutch has shat itself probably due to the massive torque spike. I've fitted a Spec Stage 3 with lightened flywheel and have about 1200miles on her now. So ill be hitting the dyno again this month hopefully get it tuned a good bit better.

    With regards the MAF. I was planning on fixing it to my airbox maybe this weekend and if it runs like crap I think Ill just put a cone filter onto the 2.5 as a temporary measure.

    As for future planning. Im already gathering my parts for a GT2871r Eliminator. Even if my K04 hits the 250 mark. the power band is not what im looking for at all.

    My shopping list now includes:
    GT2871r
    Revo software
    650 injectors
    FMIC
    The guys on Audizine reckon the THS High flow mani for our car is probably from the same cast as the ATP one so ill probably go with that too.
    What year/engine is your car?
    AFAIK Revo doesn't do AEB/AJL files.
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  30. #509
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    Im in a B6 2004 BEX.


    Yes I know im in the wrong forum but this thread is very similar to what my aims are and how im going about things...

  31. #510
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    Quote Originally Posted by Lee Goodall View Post
    Bet that wont be around for long... Mark?? Sell the outlaw and jump on that.

    Until it arrives, what can i do, boooohoooooooo

  32. #511
    Lee Goodall's Avatar
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    gmx - No it needs modifying a fair bit first (edited.. sorry people). It was an ebay special (link)..

    http://cgi.ebay.co.uk/ws/eBayISAPI.d...m=290366967946

    He doesn't seem to have that one listed at the mo but it might be worth an email to check what he's got.
    Last edited by Lee Goodall; 12th November 2009 at 17:18.

  33. #512
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    Did you physicaly try a sensor Lee, not doubting you but same as you can't afford to spend money twice.

    I still want that T3, who wants a Hybrid turbo??? LOL

  34. #513
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    I thought T3s werent the way to go. When i said i wanted a T3 i was told it would drive ****????
    Drizz Developments - Audi A4 Avant Quattro Sport

  35. #514
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    Quote Originally Posted by Drizz View Post
    I thought T3s werent the way to go. When i said i wanted a T3 i was told it would drive ****????
    T3 just tells you the bolt pattern as jcb said.. all about the size & A/R etc.. I'd definitely have that one though!

  36. #515
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    Quote Originally Posted by Byzan A4 View Post
    Did you physicaly try a sensor Lee, not doubting you but same as you can't afford to spend money twice.

    I still want that T3, who wants a Hybrid turbo??? LOL
    No I didn't (lol sorry guys)..

    It does need a bit of fettling to get it to fit and the sensor is mounted the wrong way too. I will be modifying mine to fit though.

  37. #516
    2000 a4 1.8tqs-yellow

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    Lets just say i bought that t3,what other than a new downpipe would be needed? I like the idea of getting a bigger turbo set up now. Its either that or just sell the car and buy an s4 anyway.You can pick up a used t28 for very little and not sure how much a manifold would cost but im sure you could buy a used t28 and a manifold for about the same money.

  38. #517
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    Drizz- I think it comes down to which configuration generally comes with a common turbo design. Eg. my T28 is very similar to many other T28s but in theory the A/R could vary massively so don't just go by the configuration (T28, T3 etc).

  39. #518
    2000 a4 1.8tqs-yellow

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    byzan do you have a hybrid on your car?

  40. #519
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    Not yet, its on ts way after having been hybridized

    Swap you for the T3?
    LOL

    I ran one before on the Purple one Lee has, it's still going strong and puts out a nice drivable 250 BHP and 275lb torques.

  41. #520
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    Ok, the MAF housing needs A LOT of work to get the sensor to fit and will involve making a kind of hybrid!! Not such a good buy now

 

 

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