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S3 Exhaust Manifold - Uprated Options?

Discussion in 'A3/S3 Forum (8L Chassis)' started by funkymofo, May 25, 2006.

  1. funkymofo
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    funkymofo Member

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    [May 25, 2006]

    After reading through several tuning threads about the S3, the general opinion seemed to be that the exhaust system was not restrictive, but the exhaust manifold was.

    So to me this begged the question, is there an alternative "uprated" version available with the standard K04 fitment? If so what sort of gains are to be expected and where can I get one from? /ubbthreads/images/graemlins/grin.gif

    thanks, Rik.
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  3. imported_VaulterTim
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  4. funkymofo
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    funkymofo Member

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    [May 25, 2006]
    haha yeah I found that too, but on reading the small print:

    NOT compatible with Quattro cars such at 225TT, 225HP Audi S3 and Cupra

    Still, if these are the sort of prices I could expect then I am pleasantly surprised. Doesnt seem like you can get much thats worthwhile doing for under £500, and if this prevents the manifold cracking then it is probably worth it without even bringing power increases into the equation.
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  5. imported_VaulterTim
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    imported_VaulterTim Guest

    [May 25, 2006]
    Indeed... you may want to e-mail them though... as I understand it they are in the process of developing a manifold for the Quattro cars etc. They're very helpful... Worth a try .. ?
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  6. funkymofo
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    funkymofo Member

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    [May 25, 2006]
    waaaaay ahead of you on that one /ubbthreads/images/graemlins/tongue.gif
    mail sent.

    Cheers for the help though, I'll keep you posted on their reply.
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  7. Defratos
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    Defratos You’re Dethpicable!!

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    [May 25, 2006]
    what about "dahlbackracing"?? I've heard they've got reall good manifolds, but not sure if its for the stock turbo etc.. does anyone know if the manifold below fits onto the standard kit?

    [​IMG]
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  8. god_thats_quick
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    god_thats_quick Numptie of the highest order

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    [May 25, 2006]
    That's the inlet manifold, it's the exhaust one that's the problem! /ubbthreads/images/graemlins/wink.gif

    That said I'm not sure if they also make exhaust manifolds...
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  9. funkymofo
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    funkymofo Member

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    [May 25, 2006]
    their site says they do.......but at £1100 I think I'll give it a miss /ubbthreads/images/graemlins/frown.gif
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  10. elucidate
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    elucidate Member

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    [May 25, 2006]
    Yeah, Dahlback are THE guys, they also had a special offer for £800 for the exhaust manifold last month, so i did a print screen to use as leverage when i phone them for mine.
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  11. ChriS3
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    ChriS3 hud at ye bam

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    [May 25, 2006]
    I heard the ATP ones should be ready by about August. And they'll be a lot cheaper than the Dahlback manifold - £350-400.

    They better be, the Eliminator kit's depending on it....
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  12. funkymofo
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    funkymofo Member

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    [May 25, 2006]
    Yeah dahlback do know their stuff, but im not prepared to part with sort of cash for a manifold.

    And Chris, please be quiet before you tempt me into one of those elimantor kits aswell /ubbthreads/images/graemlins/tongue.gif
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  13. funkymofo
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    funkymofo Member

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    [May 27, 2006]
    Got a reply from them yesterday.
    They basically said that they were developing one but they could not confirm a completion date.
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  14. Triple_A
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    [May 27, 2006]
    [ QUOTE ]
    Got a reply from them yesterday.
    They basically said that they were developing one but they could not confirm a completion date.

    [/ QUOTE ]

    They said me the same thing 4 months ago when i asked those manifolds.
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  15. Defratos
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    Defratos You’re Dethpicable!!

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    [May 27, 2006]
    Do u need to change your exhaust manifold if you upgrade to the dahlback inlet manifold?
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  16. funkymofo
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    funkymofo Member

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    [May 27, 2006]
    nope, are you thinking of changing the inlet manifold?
    I dont see the standard being a restriction unless you are going for crazy power (400bhp +). Bet its not cheap either.
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  17. Defratos
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    Defratos You’re Dethpicable!!

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    [May 27, 2006]
    well, I was thinking along the lines of. Get a FMIC, Sport-cat, Downpipe, and I was thinking of upgrading the inlet manifold to give me 300+, would the dahlback manifold allow me to reach such figures? (assuming the car is chipped)
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  18. Ryanc
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    Ryanc Active Member

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    [May 27, 2006]
    No.Turbo is too small.
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  19. Defratos
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    Defratos You’re Dethpicable!!

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    [May 28, 2006]
    right, so I can't change the inlet manifold with the standard K04 turbo. Is it cheaper getting a hybrid or a bigger turbo?
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  20. Ryanc
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    Ryanc Active Member

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    [May 28, 2006]
    Dahlback does next to nothing on mine! I would go for one of these new eliminators from atp,not too big a turbo,like a .64 gt28rs.
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  21. Defratos
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    Defratos You’re Dethpicable!!

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    [May 28, 2006]
    Just been looking at atp, and I can see the gt28rs turbos are much bigger than the K04 turbo. Does this mean I'll have to change much of the internals of the engine? or just inlet manifold and dp etc..? and I couldn't figure out what eliminator kits do? is that the same as gettin a gt28rs?
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  22. Ryanc
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    Ryanc Active Member

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    [May 28, 2006]
    small gt28rs ,injectors should be ok,4 bar fpr ,internals are fine,stock inlet manifold is fine.Go for a decent free-flowing exhaust and possibly dp if you want, de-cat/sports cat ,should see 300bhp+
    Get MRC to map it for you.
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  23. Defratos
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    Defratos You’re Dethpicable!!

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    [May 28, 2006]
    So there's a small and large gt28rs turbo? I'm guessing the large requires internal to be changed? ok 4 bar fpr won't be a problem(Would MOFO be ok as well), sport-cat and dp are hopefully on the way, so realisticly what would be the small gt28rs's limit? I mean with a few more internals changed e.g. inlet manifold, FMIC and maybe pistons etc... 400bhp with boost control?
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  24. Ryanc
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    [May 28, 2006]
    310-320bhp small gt28rs
    330-340bhp large gt28rs

    injectors would need to be changed for larger turbo.
    Rods would be wise with bigger turbos
    A gt3071r would be good for 400bhp but would need internal work,decent exhaust manifold and a step up in capacity for response.
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  25. Defratos
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    Defratos You’re Dethpicable!!

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    [May 28, 2006]
    cool, ok so do u know roughly how much is a large gt28rs? and the figure of 330-340hp is that standard (with stronger rods)?could I realisticly get around 370 from a gt28rs? what would I need? really appreciate the help Ryanc
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  26. Ryanc
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    Ryanc Active Member

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    [May 28, 2006]
    About £600 ,i reckon a larger gt28rs if they do a eliminator in this size may see 330ish but i don't know how much of a restriction the standard exhaust manifold may become.Intercoolers also become a restriction at 330ish.Probably will be a bit laggy and you will need injectors.
    Rods are up to you,it's borderline.
    You will never get 370 from a rs ,you'd need to go to a gt2871r but there even more laggy.
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  27. Defratos
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    [May 28, 2006]
    ok cool, so what about boost control? what figures would i be lookin at?
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  28. Ryanc
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    Ryanc Active Member

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    [May 29, 2006]
    boost control is with the standard n75 using the ecu.MRC will sort this.
    small gt28rs 310-320
    large " " 325-340 (will need injectors)
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  29. Defratos
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    Defratos You’re Dethpicable!!

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    [May 29, 2006]
    OK, just looked at some older threads to see what the N75 was, I'm guessing maybe with a more aggressive N75 I might be able to boost it up a bit more?. I've got a Star pefromance FMIC lying about, this is the one that goes in conjunction with the existing driver side sdmic, what bhp would you say this is good for? I'm just curious, roughly how much would labour cost be to fit a new turbo?

    p.s. What are eliminator kits? haven't been able to understand that one. /ubbthreads/images/graemlins/beerchug.gif
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  30. ChriS3
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    ChriS3 hud at ye bam

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    [May 29, 2006]
    Eliminator kits are basically Garrett GT turbos with a flange mount that's the same as the OEM mounts. This means you 'eliminate' the need for changing the downpipe, exhaust manifold, changing the pipework in your engine, or creating new mounting points.

    ATP Eliminator info

    I've seen a Seat LCR hit 290bhp with a GT2X kit, so I wouldn't be too surprised if their quotes for the other kits are in the right BHP region.
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  31. Ryanc
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    Ryanc Active Member

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    [May 29, 2006]
    The star performance intercooler becomes restrictive past 320bhp.It will flow no more than 330bhp.
    A n75 is a n75 ,use the one that is meant for the car.
    Yep a eliminator is what you will need to keep costs down.
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  32. ChriS3
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    ChriS3 hud at ye bam

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    [May 29, 2006]
    [ QUOTE ]
    I've seen a Seat LCR hit 290bhp with a GT2X kit, so I wouldn't be too surprised if their quotes for the other kits are in the right BHP region.

    [/ QUOTE ]

    Oh, but it didn't have the standard manifold, downpipe, hoses, intercoolers, etc. so the 'eleminator' idea wasn't in full effect /ubbthreads/images/graemlins/wink.gif
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  33. Defratos
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    [May 30, 2006]
    ok I kinda get it now. So is there an eliminator kit for the larger gt28rs? or should I just call and check? when you say the FMIC would become restictive would this mean an upgrade to a larger FMIC? Just one more question, would the clucth and any other part of the car be able to handle the power? I know you'll need bigger breaks at the power band, but would I have to change the clutch/ flywheel etc...??
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  34. Defratos
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    Defratos You’re Dethpicable!!

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    [May 30, 2006]
    another question, just been lookin at ATP's site: which turbo is which?

    GTRS Eliminator Hardware Kit = is this the small or large GT28rs?

    GT2871R Eliminator Hardware Kit = What's this?
    #33
  35. ChriS3
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    ChriS3 hud at ye bam

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    [May 30, 2006]
    ATP do two kits for the S3/TT, the GTRS (350bhp) and the GT2871R (400bhp).

    The clutch won't like much above 300lbs/ft.
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  36. Defratos
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    Defratos You’re Dethpicable!!

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    [May 30, 2006]
    ok, so which one is the gt28rs? the 350 or 400hp one? or neither? Has anyone here upgraded their turbo? if so roughly how much would labour costs be from MRC tunning?
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  37. RichA3Turbo
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    RichA3Turbo ...Watching you! Staff Member Moderator

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    [May 30, 2006]
    I'd got for the 2871R... But it would be a bit more laggy. Depends what you want.

    Rich
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  38. Defratos
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    Defratos You’re Dethpicable!!

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    [May 30, 2006]
    when you guys mention laggy, how laggy would it be? my counsin's Evo8 is pretty laggy (kicks in around 3000-3800rpms) but it's fine to drive when turbo is up a spining. Where would you say the 2871R would kick in from? Would I have to fit bigger inlets and exhaust etc..if I go for the 2871R over the GT28RS? or do they require the same goods? hey Rich, how are you running 320 hp? what's IHI-VF34? and ACE112?
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  39. Ryanc
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    Ryanc Active Member

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    [May 30, 2006]
    Gt2871R is very laggy especially on a 1.8 and it won't achieve 400bhp.Full Boost guesstimate ,full boost , 4.5-5k.
    Standard valves sizes are fine but upgraded items are recommended.
    ihi vf34 is the turbo
    ace112 are alloys.
    Yes a single Intercooler with a good core above 330bhp.
    I killed my standard clutch with 345lb/t but it did have 40k on and was a very hard standing start.
    #38
  40. Defratos
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    [May 30, 2006]
    cheers for that Ryanc, would a hybrid turbo be more work? over the 28Rs? more or less power gains?
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  41. Ryanc
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    Ryanc Active Member

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    [May 31, 2006]
    If you want my honest opinion then ,i'd go for a small gt28x(gt28rs .64) eliminator kit,decent exhaust and downpipe,4 bar fpr.Perhaps intercooler,thats up to you,get mrc to map it.
    Should see a solid 320bhp,320lb/t for mininal cost.
    #40

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