• Dinan Stage 2 N63 twin turbo V8 tuned F10 550i runs 12.9@112.9

      Congrats to BimmerBoost member @alextremo who took his manual F10 550i out to the New England Dragway and ran 12's with only a Dinan Stage 2 tune. Alex weighed his car with himself in it and it came in at a staggering 4,560 pounds so running almost 113 mph and high 12's on stock runflat street tires along with that weight is certainly impressive. The Dinan tune clearly has made a considerable difference. The vehicle had an 1/8 tank of gas and some MS109 race fuel mixed with pump gas. This vehicle is capable of much more in cooler weather with some drag radials as well as supplementary modifications.






      This article was originally published in forum thread: 550i quarter mile started by alextremo View original post
      Comments 46 Comments
      1. alextremo's Avatar
        alextremo -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        This will be our lead article for tomorrow.
        cool, thanks.

        Click here to enlarge Originally Posted by DBFIU Click here to enlarge
        You have the traps to run mid 12s with a good launch. Better work on that launch!
        yep, i could use the practice thats for sure. only my 3rd time at the track and first time with a manual.
      1. Jimefam's Avatar
        Jimefam -
        Click here to enlarge Originally Posted by alextremo Click here to enlarge
        yep, i could use the practice thats for sure. only my 3rd time at the track and first time with a manual.
        It's hard to learn to launch with a manual. My brother in law has a 350z with some slight mods, fastest he could get it was 14.2 and it's easily a high 12's car but he sucks at launching it. The only thing that sucks about my auto is it doesn't let me power brake beyond 2k because the computer starts stalling it.
      1. Sticky's Avatar
        Sticky -
        Not sure how I missed this was a manual, very nicely done!

        You have a TON of room to improve that 60 foot.
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        He's got 2 tons to drag across the quarter too...great trap/et for that weight though man!How much is the dinan stage2?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by dzenno Click here to enlarge
        He's got 2 tons to drag across the quarter too...great trap/et for that weight though man!How much is the dinan stage2?
        A bit pricey: $3499
      1. Jimefam's Avatar
        Jimefam -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        A bit pricey: $3499
        Yeah but they always have specials between 15-20% off. Right now it's 15% off, yeah I know what your gonna say still about twice as expensive as it should be and your right but right now it's the only choice. If OE tuning was coming by GA on their east coast trip maybe we coulda worked something out to show what they can do to an N63. I might be convinced to visit my parents in Miami next week!
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Jimefam Click here to enlarge
        Yeah but they always have specials between 15-20% off. Right now it's 15% off, yeah I know what your gonna say still about twice as expensive as it should be and your right but right now it's the only choice. If OE tuning was coming by GA on their east coast trip maybe we coulda worked something out to show what they can do to an N63. I might be convinced to visit my parents in Miami next week!
        Just set something up with OE...
      1. 654's Avatar
        654 -
        What do these run stock?
      1. Jimefam's Avatar
        Jimefam -
        Click here to enlarge Originally Posted by 654 Click here to enlarge
        What do these run stock?
        I don't think I've seen a 6mt tested before. I believe a magazine got 13.1 out of the auto but I wouldn't take that to mean that the Dinan only picked up 1 tenth. The auto shifts faster and is probably easier to launch. I'm sure when Alex gets some more seat time he'll pick up 3 or 4 tenths easy. Someone on 5post ran a 12.4 with an auto Dinan tune and he trapped lower than Alex did. There was also an auto that was bone stock a while back that ran almost exactly what Alex ET'd(I think that run was maybe 1 hundredth quicker) but if iirc he trapped 4 or 5mph slower. If the weather is good Friday I'll run her and post up my times here with video and all that to compare. All I got are DP's. I also have a dyno appointment tomorrow afternoon.
      1. alextremo's Avatar
        alextremo -
        Click here to enlarge Originally Posted by Jimefam Click here to enlarge
        If the weather is good Friday I'll run her and post up my times here with video and all that to compare. All I got are DP's. I also have a dyno appointment tomorrow afternoon.
        Click here to enlarge Yours is an auto, correct? My guess - you'll run just as quick (maybe even a tenth quicker) and 2-3 MPH slower. Looking forward to the results!
      1. Jimefam's Avatar
        Jimefam -
        Click here to enlarge Originally Posted by alextremo Click here to enlarge
        Click here to enlarge Yours is an auto, correct? My guess - you'll run just as quick (maybe even a tenth quicker) and 2-3 MPH slower. Looking forward to the results!
        Yeah mines is auto. I'd love to run 13.1@109 anything above that and I'll need to get to work anything below and I'll consider myself lucky. I've never been to the strip with an auto before and the only time I tried to launch this car it doesn't let me powerbrake beyond 2k or so before it kills power. Not sure if it's programmer that way to prevent stuck gas pedal conditions or if I just don't know what I'm doing(this is probably it) lol still I'm excited to see what happens.
      1. persian54's Avatar
        persian54 -
        wow That's a great run, especially since it was your first with with a manual
      1. alextremo's Avatar
        alextremo -
        Click here to enlarge Originally Posted by Jimefam Click here to enlarge
        Yeah mines is auto. I'd love to run 13.1@109 anything above that and I'll need to get to work anything below and I'll consider myself lucky. I've never been to the strip with an auto before and the only time I tried to launch this car it doesn't let me powerbrake beyond 2k or so before it kills power. Not sure if it's programmer that way to prevent stuck gas pedal conditions or if I just don't know what I'm doing(this is probably it) lol still I'm excited to see what happens.
        You know - my second run I tried being more aggressive and launched at ~2500RPM and just spun the wheels. Was my worst launch of the 3. There's so much torque down low I don't think you'll be missing anything by not being able to brake boost to a higher RPM.

        Maybe a different story if you had AWD or slicks...
      1. alextremo's Avatar
        alextremo -
        Click here to enlarge Originally Posted by persian54 Click here to enlarge
        wow That's a great run, especially since it was your first with with a manual
        thank you!
      1. Jimefam's Avatar
        Jimefam -
        So I got back from the dyno a while ago after seeing some pretty cool cars get tuned. As for my dyno after the downpipes here is the dyno sheet(viewer discretion is advised as the below chart contains information not for the faint of heart.)

        Click here to enlarge

        So I gained 2hp peak BUT I dropped 24ft-lbs of torque and that is not even the crazy part. In the midrange I lost 56rwhp and 97rwtp! So what the FUK is going on right??? WELL here's what I think is the cause of my misfortune, the damned CEL. I have the innovative motorsports OT-2 plugged into the OBD-2 port and connected via wifi to my iphone. I've been noticing and have even mentioned on here that while all the other inputs i've read on the OT-2 make perfect sense the map sensor for some reason only show 2.6psi of boost maximum. At first I attributed it to the fuel level sensor error which the car had developed but I took it to the dealer yesterday and they took care of it. Today at the dyno again I noticed that it still was showing just 2.6psi on the map sensor gauge.

        I think that maybe since the Check engine light is on its limiting maximum boost?? Really that is the only thing I can come up with to explain the massive drop off in mid range power. As for why the peak #'s are somewhat closer to the originals I think that is a combination of the fact that boost normally tapers off in the top end on the stock car which brings the numbers closer as there isn't such a big difference in maximum boost. And the other reason is I think the downpipes really shine in the top range and help close the gap.

        So now what to do? Well I gotta get rid of the damned check engine light and see if it bumps the boost up. Or perhaps I'm retarded and the boost gauge is reading what its supposed to read and getting rid of the cats cost me that much?? This doesn't seem probable but I wont be able to prove whats what until I get everything working properly. Tomorrow I will make some 02 simulators(Colombian design of course) and see if I can get rid of the problem and see if boost goes up. If it does I'll put it back on the dyno and try and get some more realistic #'s. I'm supposed to go to the track tomorrow night and see what she runs but I want to get this resolved first. If I cant fix it I'll probably still go to the track to get some time with the car on the track.
      1. alextremo's Avatar
        alextremo -
        Wow - very interesting to say the least...

        I didn't realize you were using an obdii gauge - I use torque for android with the kiwi adaptor and I see the same thing 2.6 psi max. I think theres a custom pid needed for this car as the map and baro sensors don't seem to reflect the proper values. Given the rest of that curve, I'm guessing boost is not your problem.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by alextremo Click here to enlarge
        Wow - very interesting to say the least...

        I didn't realize you were using an obdii gauge - I use torque for android with the kiwi adaptor and I see the same thing 2.6 psi max. I think theres a custom pid needed for this car as the map and baro sensors don't seem to reflect the proper values. Given the rest of that curve, I'm guessing boost is not your problem.
        There is no problem, other than getting a timeslip.
      1. Jimefam's Avatar
        Jimefam -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        There is no problem, other than getting a timeslip.
        I'll have a time slip today. Hoping for around 13.5 or so now. I'd say there's a problem lol.
      1. Jimefam's Avatar
        Jimefam -
        Okay well I went to the track this afternoon but once again the night ended in disappointment as my brother in law was supposed to meet me at the track with a helmet. Well he couldn't make it so I was pretty much screwed. Sure enough first pass I ran a 13.254@109.42 and the tech official warned me about the helmet. I told him my brother in law was on the way with it and he let it slide.

        I made two more passed where I slammed the brake on around the 1/8 before they booted me for sandbagging. Still I think I could get it to 13.199 or slightly better as in my last run my incrementals were 5 hundredths better before I let off just before the 1/8. I'll post time slips later tonight, now I'm on the way to my B I L's house to get the damn helmet. I'll go again next week.

        I think if I get whatevers causing the big drop in power fixed by next week I can run 13.0x's@110.00
      1. alextremo's Avatar
        alextremo -
        sucks about the helmet. can you post the slip? what was your 60'?