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  1. #1
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    The M133 (A45,CLA45,GLA45) AMG motor is underrated - First dyno of an A45 AMG shows 340 horsepower to all four wheels

    Mercedes-Benz was not kidding around when they said their new 2.0 liter M133 motor was the most powerful production four cylinder in the world. Obviously the motor was going to be powerful thanks to its 26 psi of boost stock which Mercedes states is good for 360 horsepower at the crank. Renntech was able to get their hands on an A45 AMG to get a head start on modifications as the CLA45 AMG with the same M133 motor will be coming to the USA. So what did they find out?

    That this is a hell of a stock motor. Renntech dyno'd the A45 AMG at 340.6 to all four wheels. This is on a all wheel drive SuperFlow dyno which corrected the wheel readout to 389.5 crank horsepower or let's just call it an even 390. For an all wheel drive dual clutch car to exceed its quoted output is very impressive and shows the nature of the horsepower war going on right now which is about delivering more than quoted output. Speak softly and carry a big stick if you will.

    For those not familiar with the SuperFlow dyno it is inertia based like a Dynojet but it has an internal eddy current based braking system. Depending on what mode is used, say pure inertia with no braking, it tends to read a little bit higher than the Dynojet. That is likely what mode was used here as it would be unlikely for this motor to put out even more power on a Dynojet as this is already huge output. Expect ~10% less so roughly in the 31X all wheel horsepower range on a Dynojet which correlates well with the internally calculated 389.5 crank horsepower figure. That's 24 horses less than BMW E92 M3 V8 level of power.... from a 2.0 liter four cylinder no less that is sending power to all four wheels.

    The question now is how much is left in the motor for tuners? Mercedes pushed this one pretty far for a stock motor and that's impressive. This is going to be a fun motor. Huge thank you to Renntech for the dyno!

    Click here to enlarge

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    Amazing. I love it.

  3. #3
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    Me too, I love this little motor! I kind of want one.

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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Me too, I love this little motor! I kind of want one.
    That's really impressive! I also kind of want one, this vs the S5, I dunno.

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    Click here to enlarge Originally Posted by Adrenacide Click here to enlarge
    That's really impressive! I also kind of want one, this vs the S5, I dunno.
    I'm interested in seeing this in the GLA45 AMG.

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
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    2 out of 2 members liked this post. Yes Reputation No
    Damn... that should translate into high 300s with a tune and bolt ons. Mid 400s with an upgraded turbo and cooling? Should bring it close to stock GTR performance.

    I need one!

    K

  7. #7
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    Click here to enlarge Originally Posted by KEMA Click here to enlarge
    Damn... that should translate into high 300s with a tune and bolt ons. Mid 400s with an upgraded turbo and cooling? Should bring it close to stock GTR performance.

    I need one!

    K
    High 300's with a tune and bolt on's would be amazing I'm not sure if the stock motor will do that or not.

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    1 out of 1 members liked this post. Yes Reputation No
    Anybody know what model turbo it's using? No RPM numbers on that dyno graph so it's hard to tell at what RPM it spools up.

    Nonetheless it shows how far technology has come when a manufacturer feels comfortable providing a warranty on a near-400 horsepower 4 cylinder.

  9. #9
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    Click here to enlarge Originally Posted by andrew20195 Click here to enlarge
    Anybody know what model turbo it's using? No RPM numbers on that dyno graph so it's hard to tell at what RPM it spools up.
    Redline for the motor is 6700 rpm.

    Click here to enlarge Originally Posted by andrew20195 Click here to enlarge
    Nonetheless it shows how far technology has come when a manufacturer feels comfortable providing a warranty on a near-400 horsepower 4 cylinder.
    I know right? I wonder how strong this little thing is...

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    2 out of 2 members liked this post. Yes Reputation No

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    Can't believe I somehow missed this.

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
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    1 out of 1 members liked this post. Yes Reputation No
    Scary good motor

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    I have mine on order, though it could be as late as may before it hits my dealership :-(
    I was worried about getting rid of my FBO '09 135i for this, however all of the new info coming out is making me feel a little less timid.

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    Click here to enlarge Originally Posted by JHOOPS2 Click here to enlarge
    I have mine on order, though it could be as late as may before it hits my dealership :-(
    I was worried about getting rid of my FBO '09 135i for this, however all of the new info coming out is making me feel a little less timid.
    The N54 likely has more potential than this motor but with all wheel drive and a DCT you won't miss it much.

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    1 out of 1 members liked this post. Yes Reputation No
    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    The N54 likely has more potential than this motor but with all wheel drive and a DCT you won't miss it much.

    Yeah, that's what I'm figuring as well. My big reason for switching was for the 4 doors. I have twins now. Though we have two SUV's, one of them is a Wrangler Unlimited that stays in the mud, so I need something with a bit more room. I had thought about a 3 series, but once I priced it out I was just about where I am with the AMG, so I went with the new kid on the block. Thanks!

    BTW, here is my order:

    CLA45 AMG
    Cirrus White Exterior (Base Matte Titanium Trim)
    Black Leather Red Cut interior with Black Ash Trim
    Multi-Media Package
    Premium 1 Package
    Wheel Lock Nuts
    Rear Spoiler
    AMG Performance Steering Wheel
    AMG Center Caps for the Std twin 5 spoke wheels ( I tend to like these wheels better)
    Red Calipers
    Rear Airbags
    AMG Performance exhaust (resonator delete)
    AMG Door Lock Pins
    Xenon headlights and LED Tails are standard on the 45


    -Jeff
    Last edited by JHOOPS2; 09-24-2013 at 11:11 AM.

  16. #16
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    Click here to enlarge Originally Posted by JHOOPS2 Click here to enlarge
    Yeah, that's what I'm figuring as well. My big reason for switching was for the 4 doors. I have twins now. Though we have two SUV's, one of them is a Wrangler Unlimited that stays in the mud, so I need something with a bit more room. I had thought about a 3 series, but once I priced it out I was just about where I am with the AMG, so I went with the new kid on the block. Thanks!

    BTW, here is my order:

    CLA45 AMG
    Cirrus White Exterior (Base Matte Titanium Trim)
    Black Leather Red Cut interior with Black Ash Trim
    Multi-Media Package
    Premium 1 Package
    Wheel Lock Nuts
    Rear Spoiler
    AMG Performance Steering Wheel
    AMG Center Caps for the Std twin 5 spoke wheels ( I tend to like these wheels better)
    Red Calipers
    Rear Airbags
    AMG Performance exhaust (resonator delete)
    AMG Door Lock Pins


    -Jeff
    Very nice! I also really like the idea of the CLA45 AMG.

    You didn't consider the GLA45 AMG?

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    The GLA45 is indeed very nice! I just want a car primarily since I am pretty well covered with SUV's already. But as far as that goes, the GLA has to be one of the best looking Cross-Over SUV's I have ever seen. I am sure it will be a huge seller for MB.

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    I'm keeping my eye on the CLA45 as well. I've gotten so bored with my S4 and have been pining to get back into a C63 but the economy, AWD and DCT of the CLA45 has got me really interested. Hopefully it drives as good as it looks!
    Current: C63 Coupe: Polar White/Classic Red, P31, H&R, Mode Carbon, RevoZport, Renn Motorsport
    SOLD: B8 S4 Sprint Blue Pearl, DSG, Stasis everything.
    SOLD Eurocharged C63: ARKYM, Forgestar, K&N, Revozport, Custom Rear Lip

  19. #19
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    Click here to enlarge Originally Posted by BK63AMG Click here to enlarge
    I'm keeping my eye on the CLA45 as well. I've gotten so bored with my S4 and have been pining to get back into a C63 but the economy, AWD and DCT of the CLA45 has got me really interested. Hopefully it drives as good as it looks!
    All accounts thus far say it is a hell of a drivers car.

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    Looks like it will be a fun tuner toy. I'd buy one but not at $60-70k
    Kees on M5 Board is my bitch....

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    has Renntech made any tuning progress on this yet?

  22. #22
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    Click here to enlarge Originally Posted by infliktyd135i Click here to enlarge
    has Renntech made any tuning progress on this yet?
    I think they're just getting going.

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  23. #23
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    The CLA45 AMG is $49,000 in the US (base model of course)

    Click here to enlarge Originally Posted by JonMartin Click here to enlarge
    Looks like it will be a fun tuner toy. I'd buy one but not at $60-70k
    2011 335is DCT, JB4 + MHD BEF, stage 2 LPFP, e50 + 50/50 meth, FBO, MT ET Streets when needed


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    1 out of 1 members liked this post. Yes Reputation No

    Australia's Most Powerful Car Vs. CLA45 AMG

    2012 CTS V - Sedan - 6AT

    Stage 1 Mods:
    - 2.5 upper pulley, Ported snout/throttle body, Fluidyne HX, Airaid CAI w/green filter, ID850 injectors

    Stage 2 Mods:
    - American Racing Headers w/X-pipe, 9.1 Lower Pulley, Tune Time Custom Cam, Moroso Dual Catch Cans, Zl1 Lid, Norcal Tank

    Stage 3 Mods:
    - LSA ported/polished heads, 4.5" G-Force intake, Nick Williams 102mm T-body, 8.6 Lower Pulley

    12.18 @ 118.98 - STOCK
    10.87 @ 127.02 - STAGE 1
    10.53 @ 131.31 - STAGE 2
    10.47 @ 133.20 - STAGE 3

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    Chris Harris does a nice job on comparing to M135i



    The M135i doesn't give up much to it - seems like if the M135i was awd it would be dead even! I would like to see a same dyno same day compare of the power of the 2 cars!
    2008 E93 Giac Stage 2, HPF IC, Injen Intake, Defective AR Design DP's with useless cats
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