• 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. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by sniz Click here to enlarge
        i have never been there, but seen reports from others saying that it is no longer a fast track (new timing system). Also if Shiv had to go to a slick vs a DR either the e92 sucks at drag racing or the track prep is not very good.
        They re-calibrated the lights a while ago but you aren't going to find anything at lower elevation with better DA on the west coast. It's the fastest track we have.

        The track prep isn't good but with a 1.5X short time obviously traction isn't the problem here.
      1. sniz's Avatar
        sniz -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        They re-calibrated the lights a while ago but you aren't going to find anything at lower elevation with better DA on the west coast. It's the fastest track we have.

        The track isn't good but with a 1.5X short time obviously traction isn't the problem here.
        gotcha, so best on the west coast. if he had to go to a bias ply then its not ideal. Granted a bias ply will always be better than a radial but it just doesnt seem necessary at this power level with proper track prep. Hell I've seen Zr1's lift the front tire on 40 series radials at MIR.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by sniz Click here to enlarge
        gotcha, so best on the west coast. if he had to go to a bias ply then its not ideal. Granted a bias ply will always be better than a radial but it just doesnt seem necessary at this power level with proper track prep. Hell I've seen Zr1's lift the front tire on 40 series radials at MIR.
        He didn't have to run a bias-ply he chose to. It's a manual so it is easier on the driveline plus a bias-ply will hook easier in varied conditions (like poor track prep) than a radial.

        I think with a manual he likely made the right choice in order to get the ET.

        MIR is the best track in the country.
      1. sniz's Avatar
        sniz -
        BP is much easier on the axles, debated running them myself for that reason. if he can crack a 1.4x 60 ft that will be awesome, i think its possible.

        no debate from me on MIR, i'm spoiled with that place. hell im 15 minutes from it now sitting in my work vehicle, i should stop by and see what a 2012 Ford Escape 4 cylinder will do.........slllllllloooooooowwwwwwww POS. Got my GoPro in the windshield lol.
      1. LostMarine's Avatar
        LostMarine -
        Click here to enlarge Originally Posted by bmw335iguy Click here to enlarge
        if you or shiv want to post more than once per day become a paying sponser. If not, go back to e90post. Simple as that
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        If you want to post more than once per day e-mail admin@germanboost.com to set up your vendor account. You do realize other forums do not let vendors post period unless they are a paying sponsor, correct? You can thank Shiv for the 1 post per day limitation due to abuse of our rules which we ask vendors to kindly respect.

        Shiv's account is not banned or limited in any fashion not sure where that is coming from, he is setup as a guest vendor just like you. Shiv likely just is having trouble clearing out his cookies as his duplicate accounts were banned.
        i love how these people think they are special
      1. Autobahn335i's Avatar
        Autobahn335i -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        If you want to post more than once per day e-mail admin@germanboost.com to set up your vendor account. You do realize other forums do not let vendors post period unless they are a paying sponsor, correct? You can thank Shiv for the 1 post per day limitation due to abuse of our rules which we ask vendors to kindly respect.

        Shiv's account is not banned or limited in any fashion not sure where that is coming from, he is set up as a guest vendor just like you. Shiv likely just is having trouble clearing out his cookies as his duplicate accounts were banned.
        I understand your reasoning, but I think you're shooting yourself in the foot with this limitation. Not every guest vendor is like Darth Vader... Maybe some potential sponsors would like to evaluate the opportunities this forum offers, before they get full vendor status. But if they can only post once a day, then get neg repped only because they work with the Forces of Evil, then that's no good for your forum. After all, vendors have (most of the time) more technical knowledge to offer than the average user (otherwise we'd all just tune the cars by ourselves.).
      1. onurleft's Avatar
        onurleft -
        Clearly a bias with the overwhelmingly negative post. No pun intended.

        He was running 28" slicks at a known "slow" track and it's summer time. Good pass i'd say, car has a lot left on the table.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by onurleft Click here to enlarge
        Clearly a bias with the overwhelmingly negative post. No pun intended.

        He was running 28" slicks at a known "slow" track and it's summer time. Good pass i'd say, car has a lot left on the table.
        It's a fast $#@!ing track and nobody is stopping him from doing anything.
      1. ZooyorQ's Avatar
        ZooyorQ -
        That's a fast car.. keep in mind I make 850rwhp and I run mid 10's... the gearing in these cars is very poor for dragging. We need taller gears in first and second.

        If I was to have a custom first gear made for my Getrag 420 tranny in the E46 M3 I'd be in the 9's with no other changes.
      1. themyst's Avatar
        themyst -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        You don't seem to understand Sac is a fast track.
        Wrong, it isn't a fast track anymore. I don't think anyone disputes that.

        Shiv is 4 mph short comparing his VBOX traps to his slip. At atco, the slip actually reads 0.5 mph faster than the VBOX. take that for what it's worth.
      1. themyst's Avatar
        themyst -
        Click here to enlarge Originally Posted by Sean@FFTEC Click here to enlarge
        Crappy meth injection? Please explain.

        Also Sticky- if you want us to provide info on this forum, please change my posting privileges to allow more than one post a day. And please re-enable Shiv's account as well. If you don't want to do that, will answer questions exclusively on e90post. I still don't know why I was neg repped the other day for providing info. If this continues to be the trend, I'll conclude that my participation isn't wanted.
        Sean, the point is the stock fuel system isn't physically limited, it's an inherent limitation of piggyback fueling in general on this platform. Even a fuel table reflash won't help him. Hence, the four meth nozzles. I'm in the same boat with my RB turbos though, I didn't want to go dual nozzles but I had to due to this limitation.

        Once ATR comes out I will be happily running my single meth nozzle with 12 AFR straight across.
      1. Terry@BMS's Avatar
        Terry@BMS -
        Click here to enlarge Originally Posted by themyst Click here to enlarge
        Wrong, it isn't a fast track anymore. I don't think anyone disputes that.

        Shiv is 4 mph short comparing his VBOX traps to his slip. At atco, the slip actually reads 0.5 mph faster than the VBOX. take that for what it's worth.
        Click here to enlarge Originally Posted by Shiv@Vishnu Click here to enlarge

        Finally getting a chance to look at the vbox data from the 1/4 mile pass. Some interesting data. Can't post graphs from the road so I'll post them when I get back to the office tomorrow.

        Peak/sustained acceleration G:
        1st gear: 1.3/1.15
        2nd gear: 0.87/0.82
        3rd gear: 0.61/0.60
        4th gear: 0.55/0.34

        Shift time (deccel duration between gears)
        1-2. 0.38s
        2-3. 0.41s
        3-4. 0.38s

        Trap speed: 132mph
        Slip was 131.99. Normally I'd expect a VBOX to read 1/2-1mph faster than the track slip. So it sounds like the timing equipment is properly configured, but it's still a sea level track with good weather known for producing good times.
      1. themyst's Avatar
        themyst -
        Click here to enlarge Originally Posted by Terry@BMS Click here to enlarge
        Slip was 131.99. Normally I'd expect a VBOX to read 1/2-1mph faster than the track slip. So it sounds like the timing equipment is properly configured, but it's still a sea level track with good weather known for producing good times.
        There was a 129.xx slip that trapped 133 on the vbox IIRC. Based on that info the track seems slow.
      1. Terry@BMS's Avatar
        Terry@BMS -
        Yeah I dunno. I don't trust any MPH from that track personally. Seems like it changes every other month depending on where they set the timing lights that night. ET seems consistent though.
      1. onurleft's Avatar
        onurleft -
        I don't really see how any track could be fast at this time of year short of a cold front.
        Records which people frequently nut-swing and brag about.. my stock car Z06 goes 130, my tune only C63 does 125 are done in negative D.A, in DRY climates when it's 40-60 degree's out for the most part. It's May, it's hotter, and the car has tall tires.
        The thing is in the 134-136 area in configurations we see that are more common, i'm pretty sure of that and i'd say that's pretty good for the weight of the car.
      1. singletrack's Avatar
        singletrack -
        Sounds pretty awesome. That is still damn fast. I don't follow the N54 tuning scene, so no idea how relevant the kit is...

        Congrats on hitting 10s though!
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by ZooyorQ Click here to enlarge
        That's a fast car.. keep in mind I make 850rwhp and I run mid 10's... the gearing in these cars is very poor for dragging. We need taller gears in first and second.

        If I was to have a custom first gear made for my Getrag 420 tranny in the E46 M3 I'd be in the 9's with no other changes.
        The E46 M3 has a weak rear end though and can't really launch the way it needs to. The E92 rear end is MUCH more stout.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by themyst Click here to enlarge
        Wrong, it isn't a fast track anymore. I don't think anyone disputes that.

        Shiv is 4 mph short comparing his VBOX traps to his slip. At atco, the slip actually reads 0.5 mph faster than the VBOX. take that for what it's worth.
        It isn't fast? It's faster than anything else on the West Coast therefore it is the fastest track available. The track isn't the problem.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by themyst Click here to enlarge
        There was a 129.xx slip that trapped 133 on the vbox IIRC. Based on that info the track seems slow.
        Slow? Look at the DA and elevation.
      1. spool twice's Avatar
        spool twice -
        it'd be interesting to have a comparison of what a pair of tuned RB's will do in regards to 1/4 times with some tire and gearing prepping.

        prop's to them, he can officially say he's the "quickest" E9x N54 in the 1/4mile, definately will be waiting on the "fastest" e9x N54 1/4mile e.t. claim soon I'm sure.