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    • A BMW X1 as a serious performance machine? Believe it, BimmerBoost member runs 12.1@111 in his X1 xDrive35i

      The world's quickest and fastest BMW X1? That would be BimmerBoost member paradoxical3 with his BMS JB4 tuned N55 X1 xDrive35i. With a JB4 G5 ISO, 40% E85/93 octane mix, BMS intake, BMW downpipe, and a Wagner intercooler he managed a very impressive 12.137@111.20 in the 1/4 mile. That's quicker than a stock BMW X5M/X6M at a fraction of the cost with just bolt on modifications to put the performance into perspective.

      BimmerBoost can not find a 1/4 mile timeslip anywhere with a quicker result from an all wheel drive N55 based BMW so this appears to be not only have the X1 overall record but the N55 xDrive record as well. Congratulations to @paradoxical3 for his results on the strip and BimmerBoost looks forward to seeing him break into the 11's which are just a tick away.









      This article was originally published in forum thread: BMW X1 World Record (12.563@109.74), full weight stock runflats started by paradoxical3 View original post
      Comments 67 Comments
      1. DFM's Avatar
        DFM -
        Very impressive! talk about a sleeper, almost regretting getting an F30 328i haha.
      1. maui86's Avatar
        maui86 -
        Man, it just keeps getting better. You on stock suspension? What size wheels? How's the drivetrain feel with those 1.6 60fts? Haha. I can't wait for you to post a 0-60 video. This is simply badass. Great job!
      1. maui86's Avatar
        maui86 -
        Hopefully similar performance can be had with pump+meth or ms109 only? That's all I can get here..no ethanol pumps here.
      1. paradoxical3's Avatar
        paradoxical3 -
        I'm sure 109 octane would do the same thing, technically thats what you are supposed to run on map 7 but I just run 50% e85 because its so much cheaper.
      1. maui86's Avatar
        maui86 -
        Good to know. Approaching 90mph in the first half is nothing to sneeze about. You picked up ~22mph in the back half as well. So its not like you're falling on your ass in the back half.

        My goal when I get an x1 would be 11's@115 if at all possible. My e90 traps that and i find its a happy medium for fun and reliability.
      1. paradoxical3's Avatar
        paradoxical3 -
        You will need RB or Vargas turbo to hit 115 trap in a X1 I believe. I think at this point even meth, midcats, and lighter wheels and tires will probably get me 11.8-11.9 @ 112-113 at most.

        Do you have a e90 N55 trapping that? That's very impressive if it's not a N54.

        The bottom line with the X1 the way I have it now is that it's running with C6 Vettes at the strip. That's ridiculous out of a luxury SAV and its priceless to see the reactions of other people.
      1. KB's Avatar
        KB -
        When I was getting an oil change in my 1M the dealer gave me an x1 for a loaner....I thoight it was awesome. Very suprised on how well it handled and it was very fun to drive. Good job man!
      1. maui86's Avatar
        maui86 -
        Im sorry I didnt clarify, I have an 6mt n54.

        Rev3
        pwm meth kit (use yellow heet)
        Dci.
        15.5psi taper to 13.5psi.
        And wastegate rattle so bad it would give santas sled a run for its money.
        All else stock.

        If i managed 113 on the stock turbo, I think I would be really happy. Right now it seems you get to 100 in the 9sec range which is all I really need in an sav. Haha.

        Keep up the great work!
      1. Sticky's Avatar
        Sticky -
        The world's quickest and fastest BMW X1? That would be BimmerBoost member paradoxical3 with his BMS JB4 tuned N55 X1 xDrive35i. With a JB4 G5 ISO, 40% E85/93 octane mix, BMS intake, BMW downpipe, and a Wagner intercooler he managed a very impressive 12.137@111.20 in the 1/4 mile. That's quicker than a stock BMW X5M/X6M at a fraction of the cost with just bolt on modifications to put the performance into perspective.

        BimmerBoost can not find a 1/4 mile timeslip anywhere with a quicker result from an all wheel drive N55 based BMW so this appears to be not only have the X1 overall record but the N55 xDrive record as well. Congratulations to @paradoxical3 for his results on the strip and BimmerBoost looks forward to seeing him break into the 11's which are just a tick away.

        Click here to enlarge







      1. BMDUB1's Avatar
        BMDUB1 -
        Incredible..... Good Job!
      1. onurleft's Avatar
        onurleft -
        Click here to enlarge Originally Posted by paradoxical3 Click here to enlarge
        I really have to give credit to my instructor - he was very non-judgemental, unlike some of the other instructors! I could tell he was a bit apprehensive at first, but after the first session he was super impressed with it and he was pushing me to start rotating/sliding the car more and more. The first day was pouring rain and cold (perfect for the X1 LOL) and we were both having a blast blowing by everyone else while having the heated seats on max.

        The second day was perfect and dry. A couple of instructors came over to me in the pits and made kind of snide comments ("You're in a SUV, save the lap records for a different car" kind of stuff). But once we were out on the track that changed quick when we were the fastest car and didn't get passed a single time all weekend. Afterwards those same instructors came over to check out the car and were super nice. Was funny, as I was walking towards garage 7 to hand in the instructor evaluation forums I heard some of the organizers standing around talking about "that little X1 that was blowing by everyone." Click here to enlarge Honestly, people were extremely nice overall and if they were laughing at me, at least they weren't doing it openly.

        My instructor signed me off for the intermediate group next time and told me to request him at the next event. I will be doing more of these at it was ridiculously fun, and it's eye opening to realize how much more capable the cars are than you are. Especially the ride along with the instructors...after that you realize that you're nowhere near the limits of the vehicle even though it mentally feels like you are.


        Sounds like you got the right instructor. I love sleeper cars.

        How is the car holding up heat soak wise?

        Sounds like the car is understeering a LOT. I'd look into a big rear sway bar (only) and optimizing the alignment on your stock suspension. You should be able to pull out chunks of camber in the front and adjust your tow accordingly (i.e in an E36 M3 with extended strut bolts you can pull out -2.3 degree's +/-). These two changes should get the car to rotate a lot more, and improve your lap time by multiple seconds.
      1. Mike@VAC's Avatar
        Mike@VAC -
        This is so badass. I've been thinking about one of these for the wife....I would prob end up driving it instead of her! I think they looks nice too with sport package and good wheels.

        Run some 11s!
      1. paradoxical3's Avatar
        paradoxical3 -
        Thanks for the mention Sticky!

        Click here to enlarge Originally Posted by onurleft Click here to enlarge
        Sounds like you got the right instructor. I love sleeper cars.

        How is the car holding up heat soak wise?

        Sounds like the car is understeering a LOT. I'd look into a big rear sway bar (only) and optimizing the alignment on your stock suspension. You should be able to pull out chunks of camber in the front and adjust your tow accordingly (i.e in an E36 M3 with extended strut bolts you can pull out -2.3 degree's +/-). These two changes should get the car to rotate a lot more, and improve your lap time by multiple seconds.
        Car has no issue heatsoak wise whatsoever. No limp modes or anything like that, oil temp stays right around 240-250. Was cool out though.

        There is definitely some understeer but it's not as bad as it sounds, you're actually hearing the sealant over the concrete patches at Mid-Ohio. The instructors warned us about it - it squeals so bad and it takes mental adjustment to not judge tire grip by sound when you're driving over those patches. I plan on ditching the staggered tires in the spring and installing some camber plates. I think camber and tires is by far the biggest limiter on the road course right now.
      1. Sticky's Avatar
        Sticky -
        Moved to N55.
      1. paradoxical3's Avatar
        paradoxical3 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Moved to N55.
        Can you please change the title to update the new improved time? Thanks.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by paradoxical3 Click here to enlarge
        Can you please change the title to update the new improved time? Thanks.
        The article page already reflects this change.
      1. onurleft's Avatar
        onurleft -
        Click here to enlarge Originally Posted by paradoxical3 Click here to enlarge
        Thanks for the mention Sticky!

        I plan on ditching the staggered tires in the spring and installing some camber plates. I think camber and tires is by far the biggest limiter on the road course right now.



        Wow, getting committed great to hear that someone is really planning on smoking some fast cars in an SUV.

        Let me know if you go to Road Atlanta I instruct for all the BMW events. I was able to take our bone stock 2013 Q5 3.0T to a 1:54 lap - 123 mph on the back straight, or a 1:55-1:56 with a passenger and traction control interfering. That should give you a time to smash, haha.

        I've driven the SQ5 with big brakes, torque vectoring/rear LSD and DSG and I think we will make the trade soon. The stock Q5 brakes are pathetic and it's nice to have a rain car. That car might have what it takes to get me in the 40's bone stock and is laughable fun when it rotates.

        For reference Spec Miata's are in the 1:45-1:48 range.
      1. Irishace's Avatar
        Irishace -
        This is awesome, love it.
      1. whoosh's Avatar
        whoosh -
        I've always loved a sleeper - nicely done!!
      1. trickcruiser's Avatar
        trickcruiser -
        Great work buddy! I am still trying to convince the wife that she NEEDS to trade in her 4Runner for one of these... Then it will become mine (insert evil laugh)!

        We might go back this weekend if you want another stab at 11's. Click here to enlarge