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    • Vishnu Tuning E92 335i with FFTEC N54 single turbo hardware + raised boost finally runs a 10 second 1/4 mile pass, underwhelming?

      Vishnu Tuning finally managed to eek out a 10 second pass in their single turbo E92 335i that they were once touting would be in the 9's. After multiple unsuccessful attempts (with driver errors) from Vishnu owner Shiv Pathak he was able to get a high 10 second slip by raising the boost according to his data log and shifting cleanly. Details are scarce as Vishnu did not provide information on the youtube video upload and there also is no exterior view to show the slip actually correlates to the run shown in the video.

      We will give the benefit of the doubt here but with all secrecy and the multiple attempts to get to this point the performance is simply underwhelming for the time and money investment. The car is said to have run 10.8@131. It recently was dyno'd at 627 wheel horsepower by Insideline so these horses are not translating well to the ground. This single turbo offers considerable lag and the top end pull for the sacrifice simply is not there especially compared to existing solutions such as the Rob Beck twin turbo upgrade which offers far greater spool and performance only a few miles per off through the traps but with far greater driveability.

      The previous record was 11.10@127.21 with 19 psi of boost on the RB turbos. These turbos are a much more affordable option that also currently is available. Vishnu claims 23.5 psi of boost for this 10.8@131 mph run. Is it worth the minor top end benefit for the estimated $8500+ plus install? We do not think so and considering the way Vishnu hyped this the results are very underwhelming. The low end torque sacrifice is not being justified with a large top end gain.

      We wish Vishnu luck in the future but for now this is still an experiment and work in progress that is tough to buy both figuratively and literally. There are more affordable options that work better for daily driven N54 vehicles that offer 97% of the performance in practice (as in not just a dyno queen) with less compromises. Not to mention for users to repeat what Vishnu has done here with their own single turbo it will likely be far more difficult as they will not have the option of risking their engine with higher boost and timing advances simply to try to eek out a tenth to squeeze past what already exists and get into the 10's. It may be a record, but it certainly is not impressive considering where the bar was already set with far less horsepower and much more affordable tuning and hardware options.







      This article was originally published in forum thread: Vishnu/FFTEC 10.822 1/4 mile RECORD! started by onesuperboi View original post
      Comments 682 Comments
      1. carcars's Avatar
        carcars -
        Click here to enlargeClick here to enlargeClick here to enlarge

        Congratulations on a great job by vishnnu n54

        is congratulating the rival lords and acknowledge their superiority Click here to enlargeClick here to enlargeClick here to enlarge
      1. R1000K3's Avatar
        R1000K3 -
        Epic event, it even looks as the car would make a 9 with nitrous.
      1. Sticky's Avatar
        Sticky -
        Vishnu Tuning finally managed to eek out a 10 second pass in their single turbo E92 335i that they were once touting would be in the 9's. After multiple unsuccessful attempts (with driver errors) from Vishnu owner Shiv Pathak he was able to get a high 10 second slip by raising the boost according to his data log and shifting cleanly. Details are scarce as Vishnu did not provide information on the youtube video upload and there also is no exterior view to show the slip actually correlates to the run shown in the video.

        We will give the benefit of the doubt here but with all secrecy and the multiple attempts to get to this point the performance is simply underwhelming for the time and money investment. The car is said to have run 10.8@131. It recently was dyno'd at 627 wheel horsepower by Insideline so these horses are not translating well to the ground. This single turbo offers considerable lag and the top end pull for the sacrifice simply is not there especially compared to existing solutions such as the Rob Beck twin turbo upgrade which offers far greater spool and performance only a few miles per off through the traps but with far greater driveability.

        The previous record was 11.10@127.21 with 19 psi of boost on the RB turbos. These turbos are a much more affordable option that also currently is available. Vishnu claims 23.5 psi of boost for this 10.8@131 mph run. Is it worth the minor top end benefit for the estimated $8500+ plus install? We do not think so and considering the way Vishnu hyped this the results are very underwhelming. The low end torque sacrifice is not being justified with a large top end gain.

        We wish Vishnu luck in the future but for now this is still an experiment and work in progress that is tough to buy both figuratively and literally. There are more affordable options that work better for daily driven N54 vehicles that offer 97% of the performance in practice (as in not just a dyno queen) with less compromises. Not to mention for users to repeat what Vishnu has done here with their own single turbo it will likely be far more difficult as they will not have the option of risking their engine with higher boost and timing advances simply to try to eek out a tenth to squeeze past what already exists and get into the 10's. It may be a record, but it certainly is not impressive considering where the bar was already set with far less horsepower and much more affordable tuning and hardware options.

      1. Sticky's Avatar
        Sticky -
        There you go Shiv, there is your article. I hope you enjoy it too Stucky.
      1. R1000K3's Avatar
        R1000K3 -
        Very well written Sticky, but there should be no doubt this is for real since the handling of the time slip is recorded on video with voice from the operator.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by R1000K3 Click here to enlarge
        Very well written Sticky, but there should be no doubt this is for real since the handling of the time slip is recorded on video with voice from the operator.
        I didn't see that video but like I said, benefit of the doubt with what was provided and it turned out to be correct.

        Vishnu should have been a little more forthcoming with info but I worked with what I had. I'm not going to go run around other websites for their benefit.
      1. Stucky's Avatar
        Stucky -
        Sticky-- great article!Click here to enlarge
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Stucky Click here to enlarge
        Sticky-- great article!Click here to enlarge
        Enjoy.
      1. fastgti69's Avatar
        fastgti69 -
        Congrats on 10's. That video looked pretty badass, dropping the clutch at such high rpm is sickening lol. I still expected to have a higher trap with the hp claims from before. I think this car probably has around 580-600whp at the most.
      1. BES335xi's Avatar
        BES335xi -
        Congrats!!! Now if only someone would put in some work on the xi's to see theirr potential...
      1. bobS's Avatar
        bobS -
        awesome....wait till the auto's hit the 1/4 !!
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        Looking at the log, 3rd had a large timing correction post shift and 4tg had two mid pull timing corrections...pretty aggressive...some mid gear AFR weirdness too BUT 10.8 is a 10.8...log tells me there's more in it for sure...

        Shiv, why arent you using NLS?
      1. dan avoN7's Avatar
        dan avoN7 -
        Congrats Shiv!


        Sticky, you are a douche bag. "Not hating".. just speaking the truth Click here to enlarge
      1. Velocity26's Avatar
        Velocity26 -
        Click here to enlarge Originally Posted by dzenno Click here to enlarge
        Shiv, why arent you using NLS?
        I am sure that it helps, but it sure looks and sounds stupid!
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        do you know what NLS is?
      1. Eleventeen's Avatar
        Eleventeen -
        Click here to enlarge Originally Posted by dzenno Click here to enlarge
        Looking at the log, 3rd had a large timing correction post shift and 4tg had two mid pull timing corrections...pretty aggressive...some mid gear AFR weirdness too BUT 10.8 is a 10.8...log tells me there's more in it for sure...

        Shiv, why arent you using NLS?

        There seem to be a couple little boost spikes in 3rd & 4th. Shortly after, it looks like AFR also spikes a bit and fuel trims try to correct (pretty effectively it seems). Maybe just a product of minor boost control anomalies?
      1. rader1's Avatar
        rader1 -
        About $#@!ing time
      1. (-(ellblazer420's Avatar
        (-(ellblazer420 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        There you go Shiv, there is your article. I hope you enjoy it too Stucky.
        Every party has a pooper.
      1. Velocity26's Avatar
        Velocity26 -
        Click here to enlarge Originally Posted by dzenno Click here to enlarge
        do you know what NLS is?
        Yes, but I guess there are different ways to execute it ... Shiv's pops and blows clouds of smoke.
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        Thats because its either not set right or executed wrong and maybe doesnt work right so he isnt using it