Close

Results 1 to 14 of 14
  1. #1
    Join Date
    Jan 2010
    Location
    SoCal
    Posts
    117,833
    Rep Points
    31,570.9
    Mentioned
    2066 Post(s)
    Rep Power
    316


    Reputation: Yes | No

    Independent APR 3.0 TFSI B8 S4 tune results - gains of 64 all wheel horsepower

    This is the type of thing we like to see. APR has posted their own graphs but they tend to do them in crank horsepower which is, well, pretty annoying. A customer took his car for before and after dyno pulls on a Mustang and went from 297 awhp to 361 awhp with tune only. Impressive? Yes. The car in question is a 2011 Audi S4 with a custom Milltek exhaust and the APR 93 octane tune.

    Click here to enlarge

    Dyno Video:


  2. #2
    Join Date
    Dec 2010
    Posts
    804
    Rep Points
    607.0
    Mentioned
    2 Post(s)
    Rep Power
    7


    Reputation: Yes | No
    Great looking car. And I think the power gains look great, but isn't the AFR extremely lean?

    I'm not knowledgeable about Audis, although they seem like great cars. Perhaps, the engines are built to run very lean, although the stock AFR -- while probably very conservative from the factory -- does not seem that way.

  3. #3
    Join Date
    Nov 2010
    Location
    le Paris
    Posts
    6,653
    Rep Points
    -225.0
    Mentioned
    48 Post(s)
    Rep Power
    0


    Reputation: Yes | No
    I'm Impressed by the baseline, 297whp is pretty good for a AWD car.

  4. #4
    Join Date
    Jan 2010
    Location
    SoCal
    Posts
    117,833
    Rep Points
    31,570.9
    Mentioned
    2066 Post(s)
    Rep Power
    316



    Reputation: Yes | No
    Click here to enlarge Originally Posted by Sorena Click here to enlarge
    I'm Impressed by the baseline, 297whp is pretty good for a AWD car.
    The new forced imduction Audi's are putting up much better numbers.

  5. #5
    Join Date
    Dec 2010
    Posts
    804
    Rep Points
    607.0
    Mentioned
    2 Post(s)
    Rep Power
    7


    Reputation: Yes | No
    @Sticky,

    Do you have any insight into my question about AFR above?

  6. #6
    Join Date
    Jan 2010
    Location
    SoCal
    Posts
    117,833
    Rep Points
    31,570.9
    Mentioned
    2066 Post(s)
    Rep Power
    316



    Reputation: Yes | No
    Click here to enlarge Originally Posted by Sonny Click here to enlarge
    @Sticky,

    Do you have any insight into my question about AFR above?
    Well, I would like to see a slightly better graph but yes it does appear to be a bit lean although it seems to be mostly at redline which could be somewhat of a spike. The thing is with DI you can get away with being a bit lean more than you can with port injection. So is it an aggressive tune? Certainly appears to be.

  7. #7
    Join Date
    Dec 2010
    Posts
    804
    Rep Points
    607.0
    Mentioned
    2 Post(s)
    Rep Power
    7


    Reputation: Yes | No
    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Well, I would like to see a slightly better graph but yes it does appear to be a bit lean although it seems to be mostly at redline which could be somewhat of a spike. The thing is with DI you can get away with being a bit lean more than you can with port injection. So is it an aggressive tune? Certainly appears to be.
    Ahh, yes, DI vs PI. Very good point.

  8. #8
    Join Date
    Jun 2010
    Location
    Boynton Beach, FL
    Posts
    1,209
    Rep Points
    1,445.2
    Mentioned
    61 Post(s)
    Rep Power
    0


    1 out of 1 members liked this post. Reputation: Yes | No
    Remember that if the sniffer is placed after the cats it is going to read leaner.

    Oh, and that's the shop that built my 350Z haha small world.

  9. #9
    Join Date
    Jul 2010
    Location
    Encino,CA
    Posts
    7,989
    Rep Points
    5,690.9
    Mentioned
    173 Post(s)
    Rep Power
    57


    Reputation: Yes | No
    Click here to enlarge Originally Posted by Sonny Click here to enlarge
    @Sticky,

    Do you have any insight into my question about AFR above?
    On my Gti with the APR tune It looked the same with the AFR. Lean near the redline..

    Click here to enlarge


    Those are some great numbers for just a tune! you can make that thing pretty quick!
    Burger Motorsports
    Home of the Worlds fastest N20s, N54s, N55s, S55s, N63s, and S63s!

    It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.

  10. #10
    Join Date
    Jun 2010
    Location
    Boynton Beach, FL
    Posts
    1,209
    Rep Points
    1,445.2
    Mentioned
    61 Post(s)
    Rep Power
    0


    1 out of 1 members liked this post. Reputation: Yes | No


    Just for comparison on the same dyno, FBO no meth 335i. JB3 map 7 iirc. B8 S4 is no joke. My buddy just got one, and are plan was to battle to the death lol, but now I'm a little worried.

  11. #11
    Join Date
    Jan 2010
    Location
    SoCal
    Posts
    117,833
    Rep Points
    31,570.9
    Mentioned
    2066 Post(s)
    Rep Power
    316



    Reputation: Yes | No
    ^ It will be a good race.

    Please get it on vid, AudiBoost vs. BimmerBoost will be badass.

  12. #12
    Join Date
    Feb 2010
    Location
    OH
    Posts
    1,453
    Mentioned
    2 Post(s)
    Rep Power
    0


    Reputation: Yes | No
    Even with DI they are over 13.0:1 at WOT across the board post tuning. That is VERY aggressive for a PD blower or any kind of FI. Now imagine the car on the road with real world airflow and watch the A/Fs go .3 to .5 leaner.

    FWIW, I would never market a tune that lean, not even close. Solid gains but too risky for me.

  13. #13
    Join Date
    Jun 2010
    Location
    Philly
    Posts
    249
    Rep Points
    0.1
    Mentioned
    22 Post(s)
    Rep Power
    0


    Reputation: Yes | No
    thats good power especially on a mustang. saw one of those S4s go 12.2 with just a tune...

  14. #14
    Join Date
    Jun 2010
    Location
    Boynton Beach, FL
    Posts
    1,209
    Rep Points
    1,445.2
    Mentioned
    61 Post(s)
    Rep Power
    0


    1 out of 1 members liked this post. Reputation: Yes | No
    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    ^ It will be a good race.

    Please get it on vid, AudiBoost vs. BimmerBoost will be badass.
    I will. My buddy has a gopro so hopefully we can get some decent footage. We plan to go stock for stock first. Both cars are 6speed manuals.

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
  •