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S4 vs RS4 B5

adidasandy Feb 9, 2012

  1. adidasandy

    adidasandy Member

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    As above, new to the Audi scene and wanted to know the main differences between the 2. Has the RS4 got the 4.2 motor in it?
     
  2. Bradderz_1988

    Bradderz_1988 Dont replace it, Upgrade it !!

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    The rs4 has the same 2.7t engine that the S4 has just has differant heads, IC's, turbos iirc etc so it's basically a tuned S4 engine, I'm sure the guru's will correct me out knowledge me lol
     
  3. Broken Byzan

    Broken Byzan Photographic Moderator Staff Member Moderator VCDS Map User quattro Audi A4

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    265 BHP in S4 and 460 in RS4 iirc. many differently designed parts to allow more flow. More importantly it has k04s as std. Better brakes, wider body.

    Its almost a different league to the s4
     
  4. slepy

    slepy Extremely smart and handsome person. VCDS Map User

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    Wow Byzan chill :)
    380bhp RS4
    265bhp S4

    Rs4 has stronger engine internals, K04 turbos, bigger ICs, widebody, only in estate.
    Can't really compare to S4 including price.
     
  5. Broken Byzan

    Broken Byzan Photographic Moderator Staff Member Moderator VCDS Map User quattro Audi A4

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    Eh ? I was trying to do figures from memory, and i'm old now.
     
  6. slepy

    slepy Extremely smart and handsome person. VCDS Map User

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    Just a bit to optimistic on RS4 :D
     
  7. gmx

    gmx Member

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    Stronger internals are a myth, I believe they use the same rods...
    The RS4 2.7T has different comp ratio I think to the S4.
     
  8. adidasandy

    adidasandy Member

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    So which one has the 4.2 in it or does it come with a choice of engines. Had bumped into one on highway and basically he had my pants down, spanking my ass all the way. Boy that was fast and mines 352 at fly.
     
  9. cerips

    cerips Member

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    The blocks are different, the RS4 has 4 bolts per main bearing cap and more support around them compared to the S4.
     
  10. aragorn

    aragorn "Stick a V8 in it!" Staff Member Moderator VCDS Map User

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    The s4 has 4bolt mains too.

    The blocks ARE different though, stronger material. Rods are different too as are the pistons. Even the bearings are different to account for the different rods.

    RS4 has different heads, cams, intake manifold, injectors, throttle body, all chargepipework, bigger intercoolers, bigger turbochargers, bigger downpipes/exhaust system, maf/airbox, clutch/flywheel etc etc

    Its a fairly substantially reworked engine over the S4 motor.

    Remapped they'll see 440ish and can be pushed to 500 with the right bolt ons without opening up the engine or touching the turbos.

    And yes, they will had your arse to you on a platter, even in standard trim, most will have at least a remap on them too.


    The 4.2 V8 is used in the B6 and B7 S4 as well as the B7 RS4. S4 version makes ~340hp and the RS4 version makes ~410hp.
     
  11. slepy

    slepy Extremely smart and handsome person. VCDS Map User

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    What car do you have ?
     
  12. S4_dan

    S4_dan Fire up the Quattro! VCDS Map User

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  13. gmx

    gmx Member

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    Is the RS4 block lighter as well as stronger?


    I don't get it, joined 2006 yet new to the Audi scene and not sure which one has the V8 in it.

    352chp... I'm guessing E46 M3 driver with bolt-ons?
     
  14. slepy

    slepy Extremely smart and handsome person. VCDS Map User

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    Audi S4 B5 - 2.7T 265 bhp
    Audi RS4 B5 - 2.7T 380bhp
    Audi S4 B6 - 4.2 V8 344bhp
    Audi S4 B7 - 4.2 V8 344bhp
    Audi RS4 B7 - 4.2 V8 420bhp
    Audi S4 B8 - 3.0 Supercharged 333bhp
     
  15. aragorn

    aragorn "Stick a V8 in it!" Staff Member Moderator VCDS Map User

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    I'd guess the RS4 block is probably slightly heavier.
     
  16. adidasandy

    adidasandy Member

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    S4 B5 1998 Avant 2.7 RR'd 352@fly

    Love it THB but really like the RS4's but prices are mental!!!
     
  17. LeeT

    LeeT Member

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    Make your own. :)
    Heres mine just before i dropped it off for paint.
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
     
    adidasandy likes this.
  18. adidasandy

    adidasandy Member

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    You got it back Lee?, any pics? They look f@#king evil don't they.
     
  19. LeeT

    LeeT Member

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    Nope, went up last week and it hasnt been touched :( Im in no rush now as redundancy is looming. Im in 2 minds wether to go back to my original nogaro blue now to save a few quid
     
  20. adidasandy

    adidasandy Member

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    What colour was it going to go??
     
  21. LeeT

    LeeT Member

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    Cant say :) Ive not made my mind up yet on the best way forward
     
  22. slepy

    slepy Extremely smart and handsome person. VCDS Map User

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    PINK! :)
     
  23. LeeT

    LeeT Member

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    The secret out! Thanks for nothing mate :nyah:
     
  24. slepy

    slepy Extremely smart and handsome person. VCDS Map User

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    Sorry, I'm really bad in keeping secrets :sorry:
     

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