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  1. #1
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    BMW F10 M5 severely underrated - Dyno shows 527 rear wheel horsepower SAE on a dynojet compeltely stock

    We knew the upgraded S63tu (technical update) Twin Turbo 4.4 liter V8 in the F10 M5 would be stronger than the standard S63 Twin Turbo V8 4.4 liter units in the X5M and X6M even accusing BMW of sandbagging. We just did not think it would be this much stronger. We first reported on the differences between the S63 V8's in the M SUV's and the F10 M5 in June of last year and the M5 S63tu V8 has higher compression at 10.0:1 versus 9.3:1 and runs more boost at 22 psi versus 17 psi for the SUV's.

    Well, the end result is 527 rear wheel horsepower completely stock on pump gas. This dyno comes to us courtesy of our Premier Vendor IND-Distribution whom we thank for sharing it with us.

    To put this power in perspective, the X5M and X6M put down 456 all wheel horsepower stock on 93 octane in SAE on a dynojet. So the M5 is much, much stronger partially due to routing the power to the rear wheels with a dual clutch transmission versus all four with an automatic and also due to more boost with higher compression.

    For those who like to calculate drivetrain losses, the M5 is rated at 560 horsepower stock. That would put the drivetrain losses at 6%. Using the traditional dynojet standard of 15% the rear wheel horsepower should be at 476. BMW is underrating the new turbo motors and especially the M motors considerably. We are definitely glad they are over-delivering.

    Click here to enlarge
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    With tune... over 600 perhaps? Guys need to begin taking these to the 1/4...

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    What are the new AMG M157 TT's putting down stock ? This is very impressive.

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    Click here to enlarge Originally Posted by LZH Click here to enlarge
    What are the new AMG M157 TT's putting down stock ? This is very impressive.
    The M5 is going to whipe the floor with non-PP M157 63's:

    Click here to enlarge
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    Click here to enlarge Originally Posted by LZH Click here to enlarge
    What are the new AMG M157 TT's putting down stock ? This is very impressive.
    Here is a better one. Stock, PP, and tuned: http://www.benzboost.com/showthread....h-Stage-1-tune

    Click here to enlarge
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    Jesus. May have to see what I can get in trade for my 550.

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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Well, the end result is 527 rear wheel horsepower completely stock on pump gas. This dyno comes to us courtesy of our Premier Vendor IND-Distribution whom we thank for sharing it with us.
    Nice to see a dyno of the new M5. I was thinking all along that this engine had to be underrated by BMW. While everyone has been raving over how fast the the new Shelby GT500 is (myself included), this latest M5 has been right on the Shelby's heels in acceleration, be it 0-60, the quarter mile, or terminal speed at the end of the quarter...and doing that while having a 300-400 pound weight penalty over the Shelby. Knowing it puts a bit over 500 to the wheels certainly explains how this car runs like a scalded cat and can almost keep up with the GT500 in an acceleration run.

    Wait until there are tunes for this thing...

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    wow, just wow. I need to make more money.

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    Seriously, these numbers are ridiculous. This car is a true beast. It will be interesting to see where the tunes head not only for the M5, but the 550 as well. The best part is it's not just hp, but torque too.

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    Click here to enlarge Originally Posted by Sticky Click here to enlarge

    Although I wouldn't call the new M5's engine "high revving" (in comparison to other M engines) but it sure is amazing that it's making more power than the Merc is at its redline - and then continues on for another 1000 RPMs... Wow.

    I have a feeling we will see some impressive things with this engine in regard to tuning.

    Underrated is right - 6% DTL - LOL.

    Cheers.

  11. #11
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    Click here to enlarge Originally Posted by inlineS54B32 Click here to enlarge
    Although I wouldn't call the new M5's engine "high revving" (in comparison to other M engines) but it sure is amazing that it's making more power than the Merc is at its redline - and then continues on for another 1000 RPMs... Wow.

    I have a feeling we will see some impressive things with this engine in regard to tuning.

    Underrated is right - 6% DTL - LOL.

    Cheers.
    The M5 turbo setup is more efficient than the M157 and the twin scroll setup will get more HP with the extra exhaust pulses. I have an article explaining it if you want to read about it.
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    Click here to enlarge Originally Posted by HoozyerdaddyC63 Click here to enlarge
    Seriously, these numbers are ridiculous. This car is a true beast. It will be interesting to see where the tunes head not only for the M5, but the 550 as well. The best part is it's not just hp, but torque too.
    I'm concerned this motor won't have too much room to play, looks BMW went pretty aggressive to make a point. Message received.

    I was thinking about getting away from BMW but an F13 M6 convertible might be a nice ride to pick up...
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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    I'm concerned this motor won't have too much room to play, looks BMW went pretty aggressive to make a point. Message received.

    I was thinking about getting away from BMW but an F13 M6 convertible might be a nice ride to pick up...
    Still heavy as $#@!... they definitely addressed the power issue but not the weight issue.

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    Click here to enlarge Originally Posted by Q4P Click here to enlarge
    Still heavy as $#@!... they definitely addressed the power issue but not the weight issue.
    True and I complain about that aspect constantly but I can't think of another luxury 4 Seat convertible with this level of power. You don't buy the convertible to be the fastest.
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    The M6 is going to be bad ass! It might be heavy but it has $#@! ton of power. Drove through the dealership a couple of weeks ago an they had a couple of regular 6 series. Beautiful cars and I think they looked small compared to pics. I will tell what sucks though....the.curved down front end of the new 3...looks dumb as $#@!...they also had a 6 series grand coupe, anyone that pays the premium for that over a 5 series is a $#@!ing dumbass.
    ​#Chuckstrong

  16. #16
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    Was the dealer the other week as well and I really, really like the new 6 Series. It's stunning.
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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Was the dealer the other week as well and I really, really like the new 6 Series. It's stunning.
    I agree. Do you agree that they look smaller than their weight and pics would suggest? I can only imagine how awesome the M6 will be....I'm not a vert fan but whatever....
    ​#Chuckstrong

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    Click here to enlarge Originally Posted by KB Click here to enlarge
    I agree. Do you agree that they look smaller than their weight and pics would suggest? I can only imagine how awesome the M6 will be....I'm not a vert fan but whatever....
    Yes, definitely agree.
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    As crazy as the stock numbers are, just stop and think about a modded M5. I mean, $#@!, just a tune only car is going to be a G-force induced boner waiting to happen.

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    Click here to enlarge Originally Posted by Eleventeen Click here to enlarge
    As crazy as the stock numbers are, just stop and think about a modded M5. I mean, $#@!, just a tune only car is going to be a G-force induced boner waiting to happen.
    We have see what they do tuned. I don't know if they will have as much room to play with as the Benz M157.
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    Damn... What a freak out the box Click here to enlarge

    So S63tu or M157?? I don't know what's in my future.. Either way I'm just going cougar hunting immediately to round up a sponsor to bankroll my new beast! haha Click here to enlarge
    09' M3 AA Gen 2 Level 2 S/C
    03' Viper Roadster- FBO
    10' X5M
    09' Cayenne GTS
    11' Jaguar XFR
    08' CLS63 AMG
    08' EVO X GSR- FBO
    13' F10 550i M Sport

    Past:
    07' C6 Z06
    11' M3 Comp DCT
    10' C63 AMG
    10' SVT Raptor 6.2
    12' BOSS 302
    11' E92 335i
    09' C63 AMG -
    01' C5 Z06- White, FBO+Cam
    11' E92 335is- Sapp Blk
    08' E82 135i- Sapphire Blk
    10' Audi S5 6-Speed
    04' SVT Lightning
    08' E90 335i 6-Speed- Blk
    08' C63 AMG- Blk
    09' CTS-V Sedan- Blk Raven
    06' E60 M5 SMG
    Click here to enlarge

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    Time to stick the S63tu in an M3 and wipe the floor with some competition.

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    1 out of 1 members liked this post. Yes Reputation No
    Click here to enlarge Originally Posted by TZ04XJR Click here to enlarge
    Damn... What a freak out the box Click here to enlarge

    So S63tu or M157?? I don't know what's in my future.. Either way I'm just going cougar hunting immediately to round up a sponsor to bankroll my new beast! haha Click here to enlarge
    Great idea! Click here to enlarge

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    well damn. Those are some solid numbers. I wonder if it'd be possible (space contraints?) to upgrade the turbos?

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    Click here to enlarge Originally Posted by Yukohama Click here to enlarge
    well damn. Those are some solid numbers. I wonder if it'd be possible (space contraints?) to upgrade the turbos?
    Considering they are top mounted, absolutely.
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