1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

S4 vs RS4 B5

Discussion in 'A4/S4 forum(B5 Chassis)' started by adidasandy, Feb 9, 2012.

  1. adidasandy
    Offline

    adidasandy Member

    Joined:
    Apr 23, 2006
    Messages:
    271
    Likes Received:
    3
    [Feb 9, 2012]
    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?
    #1
  2. Ads

    Ads

    [Jan 28, 2015]

  3. Bradderz_1988
    Offline

    Bradderz_1988 Dont replace it, Upgrade it !!

    Joined:
    Aug 19, 2010
    Messages:
    3,385
    Likes Received:
    130
    [Feb 9, 2012]
    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
    #2
  4. Broken Byzan
    Offline

    Broken Byzan Photographic Moderator Staff Member Moderator VCDS Map User

    Joined:
    Apr 26, 2004
    Messages:
    12,805
    Likes Received:
    327
    [Feb 9, 2012]
    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
    #3
  5. slepy
    Online

    slepy Extremely smart and handsome person. VCDS Map User

    Joined:
    Sep 7, 2009
    Messages:
    1,348
    Likes Received:
    104
    [Feb 9, 2012]
    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.
    #4
  6. Broken Byzan
    Offline

    Broken Byzan Photographic Moderator Staff Member Moderator VCDS Map User

    Joined:
    Apr 26, 2004
    Messages:
    12,805
    Likes Received:
    327
    [Feb 9, 2012]
    Eh ? I was trying to do figures from memory, and i'm old now.
    #5
  7. slepy
    Online

    slepy Extremely smart and handsome person. VCDS Map User

    Joined:
    Sep 7, 2009
    Messages:
    1,348
    Likes Received:
    104
    [Feb 9, 2012]
    Just a bit to optimistic on RS4 :D
    #6
  8. gmx
    Offline

    gmx Member

    Joined:
    Feb 2, 2009
    Messages:
    139
    Likes Received:
    2
    [Feb 10, 2012]
    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.
    #7
  9. adidasandy
    Offline

    adidasandy Member

    Joined:
    Apr 23, 2006
    Messages:
    271
    Likes Received:
    3
    [Feb 10, 2012]
    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.
    #8
  10. cerips
    Offline

    cerips Member

    Joined:
    Jan 14, 2010
    Messages:
    54
    Likes Received:
    0
    [Feb 10, 2012]
    The blocks are different, the RS4 has 4 bolts per main bearing cap and more support around them compared to the S4.
    #9
  11. aragorn
    Online

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

    Joined:
    Jan 30, 2008
    Messages:
    16,005
    Likes Received:
    364
    [Feb 10, 2012]
    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.
    #10
  12. slepy
    Online

    slepy Extremely smart and handsome person. VCDS Map User

    Joined:
    Sep 7, 2009
    Messages:
    1,348
    Likes Received:
    104
    [Feb 10, 2012]
    What car do you have ?
    #11
  13. S4_dan
    Online

    S4_dan Fire up the Quattro! VCDS Map User

    Joined:
    Jan 5, 2006
    Messages:
    1,961
    Likes Received:
    93
    [Feb 10, 2012]
    #12
  14. gmx
    Offline

    gmx Member

    Joined:
    Feb 2, 2009
    Messages:
    139
    Likes Received:
    2
    [Feb 10, 2012]
    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?
    #13
  15. slepy
    Online

    slepy Extremely smart and handsome person. VCDS Map User

    Joined:
    Sep 7, 2009
    Messages:
    1,348
    Likes Received:
    104
    [Feb 10, 2012]
    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
    #14
  16. aragorn
    Online

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

    Joined:
    Jan 30, 2008
    Messages:
    16,005
    Likes Received:
    364
    [Feb 10, 2012]
    I'd guess the RS4 block is probably slightly heavier.
    #15
  17. adidasandy
    Offline

    adidasandy Member

    Joined:
    Apr 23, 2006
    Messages:
    271
    Likes Received:
    3
    [Feb 10, 2012]
    S4 B5 1998 Avant 2.7 RR'd 352@fly

    Love it THB but really like the RS4's but prices are mental!!!
    #16
  18. LeeT
    Offline

    LeeT Member

    Joined:
    Apr 5, 2009
    Messages:
    430
    Likes Received:
    4
    [Feb 10, 2012]
    Make your own. :)
    Heres mine just before i dropped it off for paint.
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    #17
    adidasandy likes this.
  19. adidasandy
    Offline

    adidasandy Member

    Joined:
    Apr 23, 2006
    Messages:
    271
    Likes Received:
    3
    [Feb 10, 2012]
    You got it back Lee?, any pics? They look f@#king evil don't they.
    #18
  20. LeeT
    Offline

    LeeT Member

    Joined:
    Apr 5, 2009
    Messages:
    430
    Likes Received:
    4
    [Feb 10, 2012]
    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
    #19
  21. adidasandy
    Offline

    adidasandy Member

    Joined:
    Apr 23, 2006
    Messages:
    271
    Likes Received:
    3
    [Feb 10, 2012]
    What colour was it going to go??
    #20
  22. LeeT
    Offline

    LeeT Member

    Joined:
    Apr 5, 2009
    Messages:
    430
    Likes Received:
    4
    [Feb 10, 2012]
    Cant say :) Ive not made my mind up yet on the best way forward
    #21
  23. slepy
    Online

    slepy Extremely smart and handsome person. VCDS Map User

    Joined:
    Sep 7, 2009
    Messages:
    1,348
    Likes Received:
    104
  24. LeeT
    Offline

    LeeT Member

    Joined:
    Apr 5, 2009
    Messages:
    430
    Likes Received:
    4
    [Feb 10, 2012]
    The secret out! Thanks for nothing mate :nyah:
    #23
  25. slepy
    Online

    slepy Extremely smart and handsome person. VCDS Map User

    Joined:
    Sep 7, 2009
    Messages:
    1,348
    Likes Received:
    104
    [Feb 10, 2012]
    Sorry, I'm really bad in keeping secrets :sorry:
    #24

Share This Page