Close

    • SRT Stage 2 E85 tuned C7 Audi S6 4.0 TFSI V8 running 11.0@125 1/4 mile

      These are GPS timed numbers but extremely impressive when you consider they are tune only and full weight. SRT (Silly Rabbit Tuning) provided their Stage 2 E85 tune for this Audi S6 and all it has is an upgraded HPFP (High Pressure Fuel Pump) to help with fueling on ethanol.


      The owner has a handheld to switch tunes but considering the numbers he will likely want to fill up with ethanol:


      How about a 0-60 of 3.20 seconds?


      The dual clutch transmission helps but it is nice to see the base 4.0 TFSI V8 get pushed and show what it can do.

      C7 S6's certainly are becoming more and more appealing due to their value and not giving up any tuning capability to their RS6/RS7 big brothers especially once turbos are swapped.

      This article was originally published in forum thread: SRT Stage 2 E85 tuned C7 Audi S6 4.0 TFSI V8 running 11.0@125 1/4 mile started by Sticky View original post
      Comments 23 Comments
      1. Quattro Lee's Avatar
        Quattro Lee -
        Aye that's me...🤭🥴 Weather permitting I'll be at Texas Motorplex on Saturday to put this thing in the 10s....
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Quattro Lee Click here to enlarge
        Aye that's me...來若 Weather permitting I'll be at Texas Motorplex on Saturday to put this thing in the 10s....
        Welcome and it's impressive. Makes me want an S6 project car.
      1. Stevenh's Avatar
        Stevenh -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Welcome and it's impressive. Makes me want an S6 project car.
        I'm in the same boat as you... I'd be test driving them today if I had space in the garage. A used car would make for an awesome daily. SRM offers a $1,600 RS7 CHRA upgrade for the s6 so there is no reason it couldn't be a 10-second daily with about $5,000 in work.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Stevenh Click here to enlarge
        I'm in the same boat as you... I'd be test driving them today if I had space in the garage. A used car would make for an awesome daily. SRM offers a $1,600 RS7 CHRA upgrade for the s6 so there is no reason it couldn't be a 10-second daily with about $5,000 in work.
        You can pick them up for roughly $25k I think so with DS1 software and a turbo upgrade... yeah, should be a low 10-second sedan or the RS6 sedan they essentially refused to deliver.

        I don't see why it can't match the low 10-second RS7's with the proper turbos either.
      1. Stevenh's Avatar
        Stevenh -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        You can pick them up for roughly $25k I think so with DS1 software and a turbo upgrade... yeah, should be a low 10-second sedan or the RS6 sedan they essentially refused to deliver.

        I don't see why it can't match the low 10-second RS7's with the proper turbos either.
        I'm willing to bet low 10's become pretty common now that the DS1 is available to the public. 9's shouldn't be out of reach with proper fuel system and someone willing send it on the launch.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Stevenh Click here to enlarge
        9's shouldn't be out of reach with proper fuel system and someone willing send it on the launch.
        That's the question mark really. Not sure why these guys haven't progressed into the 9's and 140+ range.
      1. Blown6's Avatar
        Blown6 -
        Doesnt the s6 use a dct that is limited by its clutches? Believe the rs7 uses a zf that can handle abuse....
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Blown6 Click here to enlarge
        Doesnt the s6 use a dct that is limited by its clutches? Believe the rs7 uses a zf that can handle abuse....
        Well the theory is that it is limited by its clutches but there are many upgrades available from what I understand: https://www.audiboost.com/content.ph...lutch-upgrades

        I don't know of any comparable hardware and TCU software upgrade for the ZF automatic in the RS7 so I'd actually argue in favor of the dual clutch in an all out build.
      1. Blown6's Avatar
        Blown6 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Well the theory is that it is limited by its clutches but there are many upgrades available from what I understand: https://www.audiboost.com/content.ph...lutch-upgrades

        I don't know of any comparable hardware and TCU software upgrade for the ZF automatic in the RS7 so I'd actually argue in favor of the dual clutch in an all out build.
        Believe the S6 is seen a budget alternative to an rs7, add some inexpensive turbos and a tune and you are at rs7 levels. However once you open up the tranny on the s6 it becomes expensive and throws the whole budget thing out of whack. As well the rs7 has significant other performance advantages over the s6 that are not mentioned here....
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Blown6 Click here to enlarge
        However once you open up the tranny on the s6 it becomes expensive and throws the whole budget thing out of whack.
        Yeah but it's the same point for that to happen with the RS7 as it is the S6. The difference being, the S6 has options.
      1. Blown6's Avatar
        Blown6 -
        How good of a tuner car is the 550i x-drive vs the s6 as it can be had considerably cheaper....
      1. F16HTON's Avatar
        F16HTON -
        My buddy John told me about this car. Good work @Quattro Lee
      1. Stevenh's Avatar
        Stevenh -
        Click here to enlarge Originally Posted by Blown6 Click here to enlarge
        Believe the S6 is seen a budget alternative to an rs7, add some inexpensive turbos and a tune and you are at rs7 levels. However once you open up the tranny on the s6 it becomes expensive and throws the whole budget thing out of whack. As well the rs7 has significant other performance advantages over the s6 that are not mentioned here....
        You're talking about the difference between a $25k and $55k cost of entry though. $40k and your close to a fully built S6...
      1. Stevenh's Avatar
        Stevenh -
        Click here to enlarge Originally Posted by Blown6 Click here to enlarge
        How good of a tuner car is the 550i x-drive vs the s6 as it can be had considerably cheaper....
        It might be cheaper but what are the tuning options? The release of the ds1 is what made this platform so interesting out of the blue. It basically gives users the capabilities of a full standalone for $1,300. No dealing with back end flash/piggy back solutions as a workaround.
      1. Blown6's Avatar
        Blown6 -
        Click here to enlarge Originally Posted by Stevenh Click here to enlarge
        It might be cheaper but what are the tuning options? The release of the ds1 is what made this platform so interesting out of the blue. It basically gives users the capabilities of a full standalone for $1,300. No dealing with back end flash/piggy back solutions as a workaround.
        Not everyone is out to break records, short of methanol and tranny upgrades etc, i believe a 550i will give an s6 a run for its money at all the way to the turbo-upgrade level for considerably cheaper - if thats your thing....
      1. Sticky2's Avatar
        Sticky2 -
        Click here to enlarge Originally Posted by Blown6 Click here to enlarge
        How good of a tuner car is the 550i x-drive vs the s6 as it can be had considerably cheaper....
        How much cheaper? We're already taking $25k plus the S6 doesn't have trouble running rs7 turbos while to this day nobody is demonstrating successful N63 to S63 turbo conversions.
      1. nbrigdan's Avatar
        nbrigdan -
        Click here to enlarge Originally Posted by Sticky2 Click here to enlarge
        We're already taking $25k plus the S6 doesn't have trouble running rs7 turbos while to this day nobody is demonstrating successful N63 to S63 turbo conversions.
        Could you not run the Pure Stage 2 N63/N63Tu turbos? They are considerably more expensive than an RS7 cartridge but Pure has a dyno on their website where they are making ~760 WHP / ~780 WTQ (lb-ft), which as far as I understand would match the level of an hybrid/upgraded RS7 turbo?
      1. Blown6's Avatar
        Blown6 -
        Click here to enlarge Originally Posted by Sticky2 Click here to enlarge
        How much cheaper? We're already taking $25k plus the S6 doesn't have trouble running rs7 turbos while to this day nobody is demonstrating successful N63 to S63 turbo conversions.
        12-15k for a 550i, another 4k for downpipes-jb4-turbos...
      1. Oishii's Avatar
        Oishii -
        These 4.0t will be hitting 9seconds in a year, with all this support! Question i have is which tire has performed the best sticking to the road?
      1. Bowser330's Avatar
        Bowser330 -
        Click here to enlarge Originally Posted by Blown6 Click here to enlarge
        12-15k for a 550i, another 4k for downpipes-jb4-turbos...
        $12K? come on man, maybe for some beige interior & exterior outdated badly maintained and more unreliable N63

        A mainstream color combo, LCI, N63TU will cost more

        plus the 550i has the ZF 8HP70 automatic not a dual clutch and there aren't many options to upgrade it, has even one BMW customer ever upgraded their 8HP70 before? It looks like Southern Hotrod sells a clutch kit and an upgraded stall torque converter.

        ZF 8HP70 = 700NM (516 lbft) torque rating, sure it can be run higher than that but no one knows really how much...I would say #1 transmission mod should be an additional transmission fluid cooler to keep it from getting too hot and therefore too thin to provide the lubrication and protection it's meant to do. That should help to protect it when you're demanding 50% more torque rating from it.