• Australia's most powerful production car takes on the CLA45 AMG - Holden HSV GTS versus CLA45 AMG drag race

      Interesting comparison here between the most powerful production car Australia has to offer, the Holden HSV GTS with 577 horsepower, versus the new CLA45 AMG. On paper this is quite the mismatch as the CLA45 AMG M133 turbocharged 2.0 liter four-cylinder motor has 'only' 355 horsepower. However, BenzBoost readers will know that the M133 AMG motor is slightly underrated. The CLA45 AMG also weighs a substantial 709 pounds less than the Holden HSV GTS despite featuring all wheel drive and a dual clutch transmission.


      The HSV GTS is more traditional muscle car with rear wheel drive and a big V8. The engine is borrowed from the Camaro ZL1 so it is the same supercharged 6.2 liter LSA V8 we all know and love. The Holden does not have a fancy dual clutch but a 6-speed automatic.

      American raw muscle versus German engineering, what wins? Well the more powerful car but it's closer than HSV GTS owners would like it to be. The CLA45 AMG is running high 12's at close to 110 miles per hour. That is impressive.

      For as much power as it has and the size of the motor in the HSV GTS, a 12.1@118 is almost a letdown. The CLA45 AMG definitely is poised to be a giant a killer especially once the aftermarket for it heats up.

      This article was originally published in forum thread: Australia's most powerful production car takes on the CLA45 AMG - Holden HSV GTS versus CLA45 AMG drag race started by Sticky View original post
      Comments 51 Comments
      1. Puerto Rican 335d's Avatar
        Puerto Rican 335d -
        That GTS does sound sweet though!
      1. leo985i's Avatar
        leo985i -
        "Corvette ZL1" or Camaro ZL1? or Corvette ZR1?
      1. fastgti69's Avatar
        fastgti69 -
        Click here to enlarge Originally Posted by leo985i Click here to enlarge
        "Corvette ZL1" or Camaro ZL1? or Corvette ZR1?
        Most likely the ZL1. It's the LSA engine, same one in the CTSV as well. The ZR1 is LS9, it has a bigger blower. No other car will have that same engine.
      1. folgrz's Avatar
        folgrz -
        Did anyone notice how fast the CLA's tranny was shifting...

        Holy crap!

        What an awesome little car! I want it....
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by leo985i Click here to enlarge
        "Corvette ZL1" or Camaro ZL1? or Corvette ZR1?
        It's the LSA. My bad on the typo with Corvette.
      1. TT C6's Avatar
        TT C6 -
        Aftermarket? That engine is tuned to the ragged edge from the factory. You're not getting any more power out of that 2.0L .
        Conversely, that LSA can double it's power with supporting mods.

        For the record,I am a HUGE fan of GM's pushrod V8 and have owned multiple new Corvettes over the last 17 years. But, those Holdens are fat pigs with a great drivetrain.
        Since GM refuses to pull their head out of their ass and offer AWD and DCT on their "performance cars" I am jumping ship from GM to AMG.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by TT C6 Click here to enlarge
        Aftermarket? That engine is tuned to the ragged edge from the factory. You're not getting any more power out of that 2.0L .
        They said that about the S54. They said that about the S65. They said that about EVO's. They said that about STI's. They said that about S2K's.
      1. TT C6's Avatar
        TT C6 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        They said that about the S54. They said that about the S65. They said that about EVO's. They said that about STI's. They said that about S2K's.

        Oh ya?
        Then be my guest.
        YOU spend $50k on that TINY 2.0L running 26psi and YOU do the usual mods.

        Me?
        I'll stick with a naturally aspirated 6.2L engine or, IF it's boosted, at LEAST a 4.0L.


        It's not whether or not you will be able to SQUEEZE a few ponies out of that little 2.0L, it's whether or not you want to run a motor BEYOND the completely ragged edge that it's already at when it leaves the factory.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by TT C6 Click here to enlarge
        Oh ya?
        Then be my guest.
        YOU spend $50k on that TINY 2.0L running 26psi and YOU do the usual mods.

        Me?
        I'll stick with a naturally aspirated 6.2L engine or, IF it's boosted, at LEAST a 4.0L.


        It's not whether or not you will be able to SQUEEZE a few ponies out of that little 2.0L, it's whether or not you want to run a motor BEYOND the completely ragged edge that it's already at when it leaves the factory.
        I'm not sure why you expect a 2.0 liter to be a 6.2 liter. Regardless there will be an aftermarket for the 2.0 liter and I'm sure it will benefit from a bigger turbo as all 2.0 liter turbocharged motors I have seen do.

        It's not at the ragged edge, it's an 8.7:1 compression ratio motor to begin with. A tune will get more out of it. I'm not expecting 100+ hp but there is more on a table by default with exhaust modifications, fuel, and tuning.
      1. StinkyM's Avatar
        StinkyM -
        Click here to enlarge Originally Posted by TT C6 Click here to enlarge
        Oh ya?
        Then be my guest.
        YOU spend $50k on that TINY 2.0L running 26psi and YOU do the usual mods.

        Me?
        I'll stick with a naturally aspirated 6.2L engine or, IF it's boosted, at LEAST a 4.0L.


        It's not whether or not you will be able to SQUEEZE a few ponies out of that little 2.0L, it's whether or not you want to run a motor BEYOND the completely ragged edge that it's already at when it leaves the factory.
        While this post definitely makes sense, there's no real replacement for displacement and I am sure we all understand that. However, to say that running 5 or 600 rwhp in this car, probably would not be pushing its limits. I am sure Mercedes over built this engine so it will be good for a good amount. I am also sure Mercedes paid close attention to the twin clutch trans clutch packs as well.
      1. TT C6's Avatar
        TT C6 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        I'm not sure why you expect a 2.0 liter to be a 6.2 liter.
        What the F are you talking about?Click here to enlarge
        Gotta tell ya, it seems you like to argue whatever I post, just to argue.Click here to enlarge

        Good luck running 50psi on the 2.0L engine. Click here to enlarge
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by TT C6 Click here to enlarge
        What the F are you talking about?Click here to enlarge
        Gotta tell ya, it seems you like to argue whatever I post, just to argue.Click here to enlarge

        Good luck running 50psi on the 2.0L engine. Click here to enlarge
        You're being pretty ridiculous.
      1. onurleft's Avatar
        onurleft -
        Click here to enlarge Originally Posted by TT C6 Click here to enlarge
        Aftermarket? That engine is tuned to the ragged edge from the factory. You're not getting any more power out of that 2.0L .
        Conversely, that LSA can double it's power with supporting mods.

        For the record,I am a HUGE fan of GM's pushrod V8 and have owned multiple new Corvettes over the last 17 years. But, those Holdens are fat pigs with a great drivetrain.
        Since GM refuses to pull their head out of their ass and offer AWD and DCT on their "performance cars" I am jumping ship from GM to AMG.

        I see your point but I think your being a little biased. Again this is an apples or oranges comparison a 4 cylinder F.I and a 6.2 L V8 with F.I..

        With that being said I wouldn't under estimate the stock (ish) performance and the bolt on performance of this two liter, especially considering the 'built stock turbo' E63's are making 730rwhp/900 ft/lbs of torque. If Mercedes built this engine with the same percentage of potential their could be tons left on the table.
        I'd expect low 12's from this with breathing mods and tuning, knowing that it's already at 26psi, who knows with a turbo change. We know with TSi 2.0 Audi motors 400rwhp is easily achievable with warrantied kits, while 600rwhp on stock internals can be had from the inline 5 2.5 TT motors.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by onurleft Click here to enlarge
        We know with TSi Audi motors 400rwhp is easily achievable with warrantied kits, while 600rwhp on stock internals can be had from the inline 5 TT motors.
        Exactly.

        These things will be in the 11's relatively easily.
      1. fastgti69's Avatar
        fastgti69 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Exactly.

        These things will be in the 11's relatively easily.
        I don't mean to burst your bubble brotha, but that CLA is almost maxed out the way it is. 2.0 liters don't make power at all N/A, they need to be boosted. That car makes 360hp with 26psi of boost! It must be a huge turbo with nice amount of lag, and already at it's max. I dont see more than 30-40whp gains on that car with FBO tuned and race gas.

        It will definitely need a bigger turbo, and fueling will be interesting once the turbos get bigger. The 11's will be easy because of the AWD and DCT, this car is one hell of a monster from factory almost like an evo. Click here to enlarge

        2.0 liters don't make power at all N/A, so that car at 26 lbs
      1. TT C6's Avatar
        TT C6 -
        Click here to enlarge Originally Posted by fastgti69 Click here to enlarge
        I don't mean to burst your bubble brotha, but that CLA is almost maxed out the way it is. 2.0 liters don't make power at all N/A, they need to be boosted. That car makes 360hp with 26psi of boost!

        THANK YOU.
        I'm glad I'm not the only one in this thread who is being realistic.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by fastgti69 Click here to enlarge
        I don't mean to burst your bubble brotha, but that CLA is almost maxed out the way it is. 2.0 liters don't make power at all N/A, they need to be boosted. That car makes 360hp with 26psi of boost! It must be a huge turbo with nice amount of lag, and already at it's max. I dont see more than 30-40whp gains on that car with FBO tuned and race gas.

        It will definitely need a bigger turbo, and fueling will be interesting once the turbos get bigger. The 11's will be easy because of the AWD and DCT, this car is one hell of a monster from factory almost like an evo. Click here to enlarge

        2.0 liters don't make power at all N/A, so that car at 26 lbs
        The S2k made power NA and plenty of bikes do too so that's a bit ridiculous of a statement.

        Yep, actually a bit more than 360 hp but Mercedes kept the compression absurdly low with direct injection. There is a dynograph posted, it doesn't have a ton of lag.

        The point is it will show gains and there are aftermarket boosted four cylinders at way higher power levels. To act like it's maxed is ridiculous I've heard this talk plenty of times before with plenty of motors that proved it wrong. So will this one.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by TT C6 Click here to enlarge
        THANK YOU.
        I'm glad I'm not the only one in this thread who is being realistic.
        You're being pessimistic not realistic.
      1. fastgti69's Avatar
        fastgti69 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        The S2k made power NA and plenty of bikes do too so that's a bit ridiculous of a statement.

        Yep, actually a bit more than 360 hp but Mercedes kept the compression absurdly low with direct injection. There is a dynograph posted, it doesn't have a ton of lag.

        The point is it will show gains and there are aftermarket boosted four cylinders at way higher power levels. To act like it's maxed is ridiculous I've heard this talk plenty of times before with plenty of motors that proved it wrong. So will this one.
        Sorry, I need to clarify. 2.0 motors that are boosted from factory have little to no power when you remove the boost. I saw the graph as well, with the 390 crank hp from renntech. It has a nice amount of lag man. If you want me to post up my dyno graph of my k04 or my EFR on my cobalt, you'll see it's really close to the way that spools.

        The point that I was making, is that on this stock turbo you can't get that much more out of it. 26 psi on a turbo is a lot bro, trust me. I've been in the 2.0 game for a long time. I know about aftermarket boosted four cylinders probably more than a good amount of people on this site.

        On the stock turbo the CLA is very near maxed out at 26 psi. With an intake and dp I see another 20whp and a tune will do another 20whp at most! I dont see this car making more than about 360-380whp on a dynojet FBO and tuned with racegas. Mark my words, a turbo can only flow so much.

        Click here to enlarge Originally Posted by TT C6 Click here to enlarge
        THANK YOU.
        I'm glad I'm not the only one in this thread who is being realistic.
        Haha, np. Just read my sig, that's how I have experience with these boosted 4 bangers.
      1. onisyndicate's Avatar
        onisyndicate -
        Holy crap heres a 2.0 making 500whp off 14lbs of boost!

        http://www.evans-tuning.com/dynos/20...data-flashpro/

        And heres a S200 making 410 whp with a F20c and anybody who knows honda knows that F series motors are $#@!.

        K20 or K24s is where it is at!

        http://www.evans-tuning.com/dynos/20...-k-pro-tuning/

        Then last but not least here's a bone stock s2000 CR with a F22 running 718 whp off Q16 gas!

        http://www.evans-tuning.com/dynos/20...onda-flashpro/

        that is a .2 displacement difference on those two cars and race gas.

        With that being said I think that CLA 2.0 Can do wonders with proper aftermarket support.

        and its a awd platform so it will hook up unlike most hondas FWD. The s2000 is RWD so it makes a lot of honda tunners very happy let alone they make a conversion kit to drop in a k series motor and really make a monster!