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injector question

Discussion in 'A3/S3 Forum (8L Chassis)' started by Pauls3bam, Jan 18, 2012.

  1. Pauls3bam

    Pauls3bam Member

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    hi there! what would be the best injectors for [FONT=Verdana, Arial, Helvetica]GT2871R big turbo upgrade! i will be using revo for the map if this makes a difference

    thanks in advance Paul
    [/FONT]
     
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  3. <tuffty/>

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

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    550cc at a push, maybe 630's... 550's should do it though..

    <tuffty/>
     
  4. Broken Byzan

    Broken Byzan Photographic Moderator
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    550's better do it,LOL It's whats going in mine
     
  5. Pauls3bam

    Pauls3bam Member

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    hi tuffty thank you for the reply will 550's be on there limit? would i be better off with 630's so if i upgrade in the future injector will be fine ?? regards Paul:blackrs4:
     
  6. Andrew@A.L.D

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

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    550cc but if you max them out you could fit a 4 bar FPR
     
  7. badger5

    badger5 www.badger5.co.uk
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    if revo then you have to follow their build spec.. 550's i think from memory in their parts list they have tune for
     
  8. badger5

    badger5 www.badger5.co.uk
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    yours aint 2871
     
  9. Broken Byzan

    Broken Byzan Photographic Moderator
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    :(
    Close. Lol
     
  10. Pauls3bam

    Pauls3bam Member

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    Thank you for the replys guys! Also will be needing upgraded inline pump where would be the best place to find a suitable pump? Regards Paul :):)
    Sent from my 7 Mozart using Board Express
     
  11. beachbuggy

    beachbuggy Well-Known Member

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    I've got some 630cc for sale, brand new.
     
  12. badger5

    badger5 www.badger5.co.uk
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  13. Pauls3bam

    Pauls3bam Member

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    Do you have contact details for mr badger5 please thank you in advance
    Sent from my 7 Mozart using Board Express
     
  14. <tuffty/>

    <tuffty/> Badger 5 Edition...Its all about the flow...
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    Contact details are in Bill's sig and there is also a link to his section on ASN in his sig too... :)

    <tuffty/>
     
  15. s3dave

    s3dave TFSI Hybrid
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    [TABLE="width: 100%"]
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  16. s3dave

    s3dave TFSI Hybrid
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    oops Paul, oh well idiot proof i guess....;)
     
  17. badger5

    badger5 www.badger5.co.uk
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    If REVO is your choice of generic stage 3 then here's what they have tuned for from their spec list.
    K03 based cars
    [​IMG]

    K04 based cars
    [​IMG]
     
  18. Pauls3bam

    Pauls3bam Member

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    Thank you all for the information regards Paul
    Sent from my 7 Mozart using Board Express
     
  19. Pat

    Pat Member

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    Im running 550cc genesis injectors on my GT30 compact BT conversion.. fuelling has been fine upto now..

    Revo seem to think thats these are fine but i keep thinking i need slightly bigger



    Just wondered what other peoples opinions are??????
     
  20. Andrew@A.L.D

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

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  21. <tuffty/>

    <tuffty/> Badger 5 Edition...Its all about the flow...
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    630cc fo sho but if you have a 4bar FPR then that will flow about the same as 630's

    <tuffty/>
     
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  23. BuuBBa

    BuuBBa Member

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    I got 680cc and my car was tuned for 1.4bar of boost with gt2871r. Dont know what the duty cycle % was but I think theres still capacity for a bit bigger air mass.

    But if your map is supposed to use with some specific injectors then of course you should use those!

    I would choose bigger injectors instead of higher fuel pressure which wears the parts (fuel pump) more. Dont understand why people uses some "tiny" injectors if the car is going to be mapped with custom software...
     
  24. badger5

    badger5 www.badger5.co.uk
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    Wellys 550's on 338bhp on hybrid were 90% IDC.... Imagine what a GT30 can flow more :eak:
     
  25. S3Zek

    S3Zek Member

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    What would Be the best injectors for about 400-450? Would a gt3071r be ok for this sort of power?
     
  26. S3Zek

    S3Zek Member

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    I will send you a pm bill
     
    #24 S3Zek, Jan 24, 2012
    Last edited: Jan 24, 2012
  27. BuuBBa

    BuuBBa Member

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    S3Zek, calculated with values that badger5 gave (assuming that 338 bhp was at flywheel) then with 80% duty cycle you would need 730 cc for 400 hp and 820 cc for 450 hp. Those would be my recommondations if You want to have some spare on injectors size to get ~50hp more..
     
  28. S3Zek

    S3Zek Member

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    Wow 820s lol oh well if needs must :)
     

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