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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. rudypoochris's Avatar
        rudypoochris -
        I don't think there is THAT much more in the gearing TBH. I think once you sort out the tuning you will find that the gearing you have is better since you will end the run farther up fourth. You don't want to shift to 5th imho. Fix NLS first so you aren't losing timing, then work on the launches and turn up the boost. That's my thoughts.
      1. GeorgiaTech335Coupe's Avatar
        GeorgiaTech335Coupe -
        Click here to enlarge Originally Posted by rudypoochris Click here to enlarge
        I don't think there is THAT much more in the gearing TBH. I think once you sort out the tuning you will find that the gearing you have is better since you will end the run farther up fourth. You don't want to shift to 5th imho. Fix NLS first so you aren't losing timing, then work on the launches and turn up the boost. That's my thoughts.
        Even though 4th goes up to 152mph? At 130mph, 4th gear is only at 6184rpm. If I go to a 3.46, 4th will end at 134.74.
      1. rudypoochris's Avatar
        rudypoochris -
        Click here to enlarge Originally Posted by GeorgiaTech335Coupe Click here to enlarge
        Even though 4th goes up to 152mph? At 130mph, 4th gear is only at 6184rpm. If I go to a 3.46, 4th will end at 134.74.
        Ah, I didn't think it was that long. I guess my point was just that the gearing isn't terrible and isn't the main thing keeping you from laying down a good time. Id focus on fixing the tune. As noted HotRod did 132+ trap with stock turbos, which while making power lower, certainly do not make more power than you should be making at that rpm.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by rudypoochris Click here to enlarge
        Ah, I didn't think it was that long. I guess my point was just that the gearing isn't terrible and isn't the main thing keeping you from laying down a good time. Id focus on fixing the tune. As noted HotRod did 132+ trap with stock turbos, which while making power lower, certainly do not make more power than you should be making at that rpm.
        That guy ran a ton of nitrous and stripped his car. So "stock turbos" isn't exactly accurate.
      1. TCW's Avatar
        TCW -
        Shouldn't you be building more than 3-4 psi with the 2-step at 4k rpms? Assuming blue is target and black is actual.
      1. lulz_m3's Avatar
        lulz_m3 -
        Click here to enlarge Originally Posted by TCW Click here to enlarge
        Shouldn't you be building more than 3-4 psi with the 2-step at 4k rpms? Assuming blue is target and black is actual.
        He isn't running wrinkle wall slicks, boost off the line in first gear is just going to shred the tires.
      1. LostMarine's Avatar
        LostMarine -
        so, since all the "misfires" are finally "fixed" are we going to see any of these cars run again, or are they still too busy out and "enjoying" their cars?
      1. LostMarine's Avatar
        LostMarine -
        Click here to enlarge Originally Posted by tmo335tt Click here to enlarge
        My ST car is fixed, I could care less what you guys think.
        Click here to enlarge Originally Posted by tmo335tt Click here to enlarge
        You don't have a 335...why are you even in here? Go pound sand

        come back when you have some useful information...I'll share mine soon.
        so boss, whats up you get that car fixed yet or what Click here to enlarge
      1. LostMarine's Avatar
        LostMarine -
        Click here to enlarge Originally Posted by tmo335tt Click here to enlarge
        Lets see some of LostDbags results? I didn't come back to share any results all I did was check if i was able to make a post. What makes you think that I'm back to share reslults?
        i showed mine, now show yours..
      1. LostMarine's Avatar
        LostMarine -
        Click here to enlarge Originally Posted by tmo335tt Click here to enlarge

        come back when you have some useful information...I'll share mine soon.
        posted on 12-11-2012.. is it soon enough?