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External Wastegates

Discussion in 'A3/S3 Forum (8L Chassis)' started by S3_chris 11, Aug 25, 2012.

  1. S3_chris 11

    S3_chris 11 Member

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    Do you have to set these up? if so how? many thanks
     
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  3. superkarl

    superkarl MAN OF STEEL

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    how do you mean 'set these up' ?

    they have springs in, to vary the pressure they'l open, like internal ones.
     
  4. <tuffty/>

    <tuffty/> Badger 5 Edition...Its all about the flow...
    Staff Member Moderator Audi S3

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    Its a little bit of an open question but generally speaking on the Tial gates I have used (I have an MVS myself) you need to make sure the spring rates are set right to get the right crack pressure... this can vary depending on your setup/manifold/turbo etc... I have fitted Tials that are 'siad' to be set at 1bar but have made more boost when run on the dyno so needed adjusting..

    <tuffty/>
     
  5. <tuffty/>

    <tuffty/> Badger 5 Edition...Its all about the flow...
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    ...some context would help answer your question better... :)

    <tuffty/>
     
  6. Andrew@A.L.D

    Andrew@A.L.D May add NOS to 600+bhp S3.

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    If your asking how many of us are using them which i think your asking well i have a precision external waste gate on mine
     
  7. StaceyS3

    StaceyS3 Well-Known Member

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    I currently have a RS2 external gate on mine but will be using a tial mvr 44mm shortly ;)
     
  8. <tuffty/>

    <tuffty/> Badger 5 Edition...Its all about the flow...
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    Might be an idea to elaborate on your request?

    <tuffty/>
     
  9. S3_chris 11

    S3_chris 11 Member

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    just wondered if it was a case of bolting on and away you go?

    also standard u have an actuator, do u have an actuator if uve got an external wastegate? :s

    many thanks
     
    #8 S3_chris 11, Aug 28, 2012
    Last edited: Aug 28, 2012
  10. Andrew@A.L.D

    Andrew@A.L.D May add NOS to 600+bhp S3.

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  11. S3_chris 11

    S3_chris 11 Member

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    ive read that understand it all, doesnt say much about actuator tho
    this is my wastegate + screamer pipe

    i dont have much knowledge about turbos but id like to get it all right when i fit all of this

    [​IMG]
     
    #10 S3_chris 11, Aug 28, 2012
    Last edited: Aug 28, 2012
  12. Andrew@A.L.D

    Andrew@A.L.D May add NOS to 600+bhp S3.

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    You need a new turbo with no actuator in the hot side i'e no internal gate
     
  13. S3_chris 11

    S3_chris 11 Member

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    ok thanks for the help, just wanted to make sure really that i wasnt missing anything
     
  14. Andrew@A.L.D

    Andrew@A.L.D May add NOS to 600+bhp S3.

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    You will also need a new manifold, downpipe, oil and water lines, custom remap, fuel injectors and loads more
     
  15. aragorn

    aragorn "Stick a V8 in it!"
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    The actuator is integral to the external wastegate.
     
  16. <tuffty/>

    <tuffty/> Badger 5 Edition...Its all about the flow...
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    Just to clarify... you can't just bolt on an external wastgate to a std K04/whatever setup... external gates are for turbos that don't have a wastegate and actuator built in (such as the K03/K04 and some larger turbos like the GT28rs and GT2871r)...

    For example on my turbo I used to have an internally gated hotside so had an actuator (like the K04)..
    K04 internal wastgate..
    [​IMG]

    My previous GT3071 with an internally gated hotside..
    [​IMG]

    ...and now as externally gated with a Tial wastegate...
    [​IMG]

    <tuffty/>
     
  17. S3_chris 11

    S3_chris 11 Member

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    i did know that one lol that you cant bolt an external wastegate onto a standard ko4, was just curios about an actuator and if u need to do anything to set an external wastegate up.

    Got the car coming off the road shortly to be rebuilt as soon as i can find some 1000cc injectors :drool:
     
  18. <tuffty/>

    <tuffty/> Badger 5 Edition...Its all about the flow...
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  19. Andrew@A.L.D

    Andrew@A.L.D May add NOS to 600+bhp S3.

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    What spec are you going to rebuild it to as 1000 cc injectors then you will need a massive turbo to match
     
  20. aragorn

    aragorn "Stick a V8 in it!"
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    K03s? :D
     
  21. Andrew@A.L.D

    Andrew@A.L.D May add NOS to 600+bhp S3.

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    I hope he's using 4 of them for them injectors
     
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  23. S3_chris 11

    S3_chris 11 Member

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    top man, good thread many thanks as always
     
  24. Andrew@A.L.D

    Andrew@A.L.D May add NOS to 600+bhp S3.

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    What spec are you building the engine to to run 1000cc injectors
     
  25. S3_chris 11

    S3_chris 11 Member

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    ive been told that for my setup 850's as a minimum
     
  26. <tuffty/>

    <tuffty/> Badger 5 Edition...Its all about the flow...
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    Which is what.....?

    <tuffty/>
     
  27. S3_chris 11

    S3_chris 11 Member

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    got my hands on Garrett GT3582R turbo, external wastegate with screamer pipe, stainless manifold, 3" custom stainless downpipe with a full 3" decatted stainless free flow exhaust, custom 4" TIP with 3" MAF and filter
     
  28. aragorn

    aragorn "Stick a V8 in it!"
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    I think your 3" MAF might be a little undersized!
     
  29. S3_chris 11

    S3_chris 11 Member

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    thats what i thought tbf but a guy at a local tuning shop said it was plenty big enough :s
     
  30. Andrew@A.L.D

    Andrew@A.L.D May add NOS to 600+bhp S3.

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  31. badger5

    badger5 www.badger5.co.uk
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    has he done one before?

    he would be wrong!
     

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