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    • Trouble in paradise? Vishnu/FFtec N54 335ii Single Turbo kits experiencing issues as a BimmerBoost member runs 12.5@121 with misfires and having to short shift

      BimmerBoost would like to thank member GeorgiaTech335Coupe for his openness and honesty regarding his Vishnu/FFTEC single turbo setup. Recently, this member took his single turbo upgraded 6-speed manual 335i to the PBIR (Palm Beach International Raceway) dragstrip in Florida to do some testing. His best run was a 12.50@121.6 alongside a 12.8@117. Yes, these times are quite a ways away from the 10.8@131 glory pass from Vishnu demonstrating the kits capability.


      This is in no way the fault of GeorgiaTech335Coupe who experienced misfires on his car and had to short shift at 6300 rpm in order to avoid them. Now, Vishnu has basically portrayed this kit as perfect and ready for sale with nobody having any issues. The reason BimmerBoost is bringing this issue to the attention of the community is for potential buyers to understand what they are getting into.


      There is absolutely nothing wrong with having issues when modifying a car to this level and BimmerBoost is confident Vishnu will resolve them. There is something wrong with pretending nothing is wrong. A few cars with the single turbo kits have gone up for sale and apparently a total of three people, that are willing to open their mouths, are having misfire issues with these kits.

      These issues will no doubt get resolved but potential buyers and current customers needs to be aware of the process, effort, and that progress is being made. Pretending nothing is wrong and collecting money simply is the wrong way to go about this and once again (it's becoming a trend) BimmerBoost is the only site bringing these issues to the attention of the community.

      For the record, a member by the name of @tmo335tt says he has a hardware solution for the misfires that he will likely share with Vishnu (hopefully not for free). Interesting that it isn't Vishnu but the community solving this.

      Thanks again to @GeorgiaTech335Coupe for sharing his details, good or bad, as we all learn thanks to honesty and openness. There is more to tuning than just collecting money.
      This article was originally published in forum thread: Vishnu Single Turbo at PBIR - 12.50@121.6 having to shift all gears at 6300rpm started by Sticky View original post
      Comments 1090 Comments
      1. GeorgiaTech335Coupe's Avatar
        GeorgiaTech335Coupe -
        Last, in the interest of full disclosure, I want to post that the ETs at PBIR are inflated. I will make sure to go back there when I have the proper setup and want to run 10s lol.

        At OSW, my VBOX ET is always almost dead on with my slip (sometimes 0.1 slower as it rounds) and MPH is 1-2 mph faster.

        AT PBIR, the MPH was correct, but my VBOX read anywhere from 0.2-0.4 seconds SLOWER than my slip. The timing blocks must not be setup right at the end of the track. Maybe they do this to make people happy to run there. So my 12.50 is more like a 12.7-12.8 at PBIR.
      1. GeorgiaTech335Coupe's Avatar
        GeorgiaTech335Coupe -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Is Shiv experiencing this same problem on his car?

        So let me guess, the other two guys lost patience and put their cars up for sale. One is parting out the other is selling as is from what I understand.

        So, it's going to take some time for a fix or to isolate it. But 3 single turbo cars an 3 sets of misfire issues? I mean someone would have to be foolish to think they are not related to the tuning and just a coincidence at this point.

        I really hope it's straightened out for you and I have no doubt it will be. Just a matter of time it would seem. Nice to at least know what is going on though.
        The other 2 guys have not put up their cars for sale. I've been speaking with both.

        I hope it's straightened out too as it is very frustrating. That was the point of the exercise at PBIR, to get logs to analyze, not to break any record times.

        Shiv has been working with me, very diligently, to find a solution.
      1. GeorgiaTech335Coupe's Avatar
        GeorgiaTech335Coupe -
        Also, I feel like the title of this thread is very misleading. Yes, my car did do that, but that was on a mis shift into 3rd.

        Should be titled "Vishnu Single Turbo at PBIR - 12.50@121.6 having to shift all gears at 6300rpm"

        This seems like it would make for better technical discussion with less unhelpful bashing.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by GeorgiaTech335Coupe Click here to enlarge
        Should be titled "Vishnu Single Turbo at PBIR - 12.50@121.6 having to shift all gears at 6300rpm"

        This seems like it would make for better technical discussion with less unhelpful bashing.
        Fair enough I was not aware of your other runs had I been of course I would have listed the best run. A slip confirming would be appreciated for the change as nobody else cited it. Taking you at your word and editing as a courtesy to provide a non-biased thread.
      1. GeorgiaTech335Coupe's Avatar
        GeorgiaTech335Coupe -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Not a bad idea...
        I'll post a little later, too busy with work now to compile all of them.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by GeorgiaTech335Coupe Click here to enlarge
        The other 2 guys have not put up their cars for sale. I've been speaking with both.
        So the misfire problem is not affecting the guys who put their cars up for sale?

        Click here to enlarge Originally Posted by GeorgiaTech335Coupe Click here to enlarge
        I hope it's straightened out too as it is very frustrating.
        I can imagine. You invest time and money for something you saw presented to you a certain way and you expect it to perform a certain way.

        Click here to enlarge Originally Posted by GeorgiaTech335Coupe Click here to enlarge
        Shiv has been working with me, very diligently, to find a solution.
        Glad to hear it. Let's hope he sees it through.
      1. GeorgiaTech335Coupe's Avatar
        GeorgiaTech335Coupe -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        So the misfire problem is not affecting the guys who put their cars up for sale?
        I am not sure, I haven't heard that they are experiencing the same problem. I don't know who has put their car up for sale so I can't be sure.
        I do know that the other 2 guys, as of the last time I talked to them, have not put up their car for sale. I know for sure that one of them will not be putting his car up for sale anytime soon and is going to stick this out for a solution.

        I have no intentions of selling my car, as I am fully confident we can get this resolved.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by GeorgiaTech335Coupe Click here to enlarge
        I have no intentions of selling my car, as I am fully confident we can get this resolved.
        I am as well, it will just take time. No shame, modding to this level is a bumpy road when you are one of the first it's completely understandable.

        Much better to say what you just said than pretend everything is perfect to maintain some falsely created perception on forums.
      1. GeorgiaTech335Coupe's Avatar
        GeorgiaTech335Coupe -
        Click here to enlarge

        At PBIR it was about 80 degrees F, at OSW it was about 73 degrees (I think).
      1. GeorgiaTech335Coupe's Avatar
        GeorgiaTech335Coupe -
        I have another slip from OSW where I trapped 98.7mph (I think) in the 1/8 before misfiring up top. I'll try to find it.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by GeorgiaTech335Coupe Click here to enlarge
        http://www.germanboost.com/images/vishnusinglepbir.jpg

        At PBIR it was about 80 degrees F, at OSW it was about 73 degrees (I think).
        Well done, very well done. Thanks for posting the slip.
      1. lulz_m3's Avatar
        lulz_m3 -
        Its a shame you couldn't get the flash specs from Shiv and turn off misfire detection using Cobb.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by lulz_m3 Click here to enlarge
        Its a shame you couldn't get the flash specs from Shiv and turn off misfire detection using Cobb.
        Why can't the Vishnu flash just turn it off?
      1. GeorgiaTech335Coupe's Avatar
        GeorgiaTech335Coupe -
        Click here to enlarge Originally Posted by rader1 Click here to enlarge
        I agree 100%. They shouldn't be ridiculed for having issues because they're the first ones to really push this platform as far as they have. HOWEVER, they deserve all the $#@!, and more, that comes their way for hiding those issues(which appears to be the case.)
        I don't know that anyone has been hiding this issue. I didn't have my issue confirmed until a little less than a week ago after I tried replacing coils and injectors on the cylinders.

        We didn't know JMARS' car had the issue until last week when we tried to dyno it.

        I'm not sure when the other guy found his issue, but it is fairly recent.

        It would seem that is a respectful gesture to allow the tuner to have a chance to fix an issue before letting the world know. It's not without reason that there will be speed bumps on the way. Having said all that, I know we will all be frustrated if it takes a long time to resolve, so let's hope not. Plus that way everyone else will actually get to see what these cars can really do outside of Shiv's car. I will personally get 60-130 times, 1/4 mi times, and run against some other high powered cars for all you guys to see when the car is running flawlessly (or good enough to make it worth it).
      1. lulz_m3's Avatar
        lulz_m3 -
        No idea, maybe they can? The issue would be of deployment though, he would have to ship his DME back to them to reflash, test it out and see if it works, and once he finally gets the issue resolved have the DME flashed to turn it back on. I mean, you WANT misfire detection on to prevent potential damage if something goes south, but it makes it awfully hard to troubleshoot if the DME goes into limp mode before you can collect data.
      1. GeorgiaTech335Coupe's Avatar
        GeorgiaTech335Coupe -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Why can't the Vishnu flash just turn it off?
        They can, but in my eyes that is not an option. I believe Shiv is on the same page, as well.
      1. Legionofboom's Avatar
        Legionofboom -
        Ok so other then personally not liking shiv, I find this crazy that he is actively selling a product that does not work, as with any product there will be hiccups, especially when it comes to changing an entire turbo setup around, BUT thats part of the testing part, you cant release a product that does not work.

        Gt335coupe, I hope you get your car running better, I really would like to see these ST's run good.
      1. GeorgiaTech335Coupe's Avatar
        GeorgiaTech335Coupe -
        For comparison purposes, my best times/mph at OSW with FBO+meth+stock turbos was (out of around 300+ passes):

        117.xx on pump gas + meth
        12.30 @ 118.9 on race gas + meth

        The best JB car (a buddy of mine) that I've seen out there FBO+meth-exhuast trapped:

        117.xx (if I remember correctly)

        So that shoudl be a good indicator of what the max trap speed of the stock turbos can do at OSW for comparison.

        We don't get the great air that you see up north. A negative DA is still a myth to me.
      1. GeorgiaTech335Coupe's Avatar
        GeorgiaTech335Coupe -
        Click here to enlarge Originally Posted by E90SoFlo Click here to enlarge
        Ok so other then personally not liking shiv, I find this crazy that he is actively selling a product that does not work, as with any product there will be hiccups, especially when it comes to changing an entire turbo setup around, BUT thats part of the testing part, you cant release a product that does not work.

        Gt335coupe, I hope you get your car running better, I really would like to see these ST's run good.
        In all fairness to Shiv, this issue didn't come up with any of the previous cars (to my knowledge). And us 3 all bought our kits and had them installed around the same time (JMARS and I had our cars done within the same week, the other guy might have been done a week before ours were finished).
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by GeorgiaTech335Coupe Click here to enlarge
        They can, but in my eyes that is not an option. I believe Shiv is on the same page, as well.
        Why is it not an option in your eyes?