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    RENNtech M157 twin turbo 5.5 liter V8 Package 2 700hp ECU tune & LSD upgrade breaking into the 10's in the 1/4 mile

    RENNtech Package 2 ECU & differential upgrade 700hp



    Previous RENNtech Package1 ECU tune only 669hp


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    First M157 and CLS63 AMG in the 10's - Renntech Stage 2 powered 2012 CLS63 AMG runs the 1/4 mile in 10.9@129

    Well, it didn't take long for M157's to start running 10's in the 1/4 mile now did it? 10.9@129.40, absolutely incredible. The Renntech tune on the M157 in Stage I form previously powered a car to 11.3@135 in the 1/4 mile. This was the Stage II package which is rated at more horsepower with a "conservative" 688 horsepower crank rating. Expect more details to come shortly on the Renntech Stage II package for the M157. For now, enjoy the World Record 1/4 mile run video below.

    Click here to enlarge


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    thats just nuts....10s with just a tune....i know there will be alot of angry 911 and gt-r owners when they line up with this thing

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    Click here to enlarge Originally Posted by ultimateendz Click here to enlarge
    thats just nuts....10s with just a tune....i know there will be alot of angry 911 and gt-r owners when they line up with this thing
    It will really be a battle of who spends the most in the aftermarket.

    This is a great step though... and for such a heavy car, wow.

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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    It will really be a battle of who spends the most in the aftermarket.

    This is a great step though... and for such a heavy car, wow.
    thats true...looks like MB hit the nail on the head with this powerplant....gezz....and it doesnt even have an intake or exhaust or down pipes or intercooler yet....that thing is going to be nuts....wonder how long that tranny will hold up.....and i bet it will cost an arm and a leg to upgrade

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    Wow, super impressive, that didn't take long did it? It took the M156 over 3 years to break into the 10's, just image where the M157's will be after 3 years of development Click here to enlarge

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    Click here to enlarge Originally Posted by ultimateendz Click here to enlarge
    thats true...looks like MB hit the nail on the head with this powerplant....gezz....and it doesnt even have an intake or exhaust or down pipes or intercooler yet....that thing is going to be nuts....wonder how long that tranny will hold up.....and i bet it will cost an arm and a leg to upgrade
    The M157 AMG MCT 7G-tronic clutch plates are rated up to 1000Nm it's aprox. 737.5ftlb... aprox ~640's ftlb at the wheels (the M159 DCT it's rated at 750Nm based on max gross car mass 2500Kg). But, usually the manuf. could underate them a bit, but not much. Also, note that max gross vehicule mass, RS (racestart) & higher shiftpoint limit can also limit the life of the transmission. RENNtech has kept the M157 torque levels & shiftpoint below this manuf. limit, so they don't compromise reliability.

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    so another 60-100ft/lbs of torque from now and renntech should start looking at tranny upgrades?

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    Click here to enlarge Originally Posted by ultimateendz Click here to enlarge
    so another 60-100ft/lbs of torque from now and renntech should start looking at tranny upgrades?
    Tranny upgrade will be for sure. But, possible 9's on a lighter powered M157, like the new 2013 AMG SL63 biturbo.

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    Click here to enlarge Originally Posted by ultimateendz Click here to enlarge
    thats true...looks like MB hit the nail on the head with this powerplant....gezz....and it doesnt even have an intake or exhaust or down pipes or intercooler yet....that thing is going to be nuts....wonder how long that tranny will hold up.....and i bet it will cost an arm and a leg to upgrade
    On the bright side it is an automatic so DCT nonsense to deal with. As always, electronics should be the main obstacle as the physical properties of that transmission can be upgraded.

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    Click here to enlarge Originally Posted by m54b25 Click here to enlarge
    RENNtech has kept the M157 torque levels & shiftpoint below this manuf. limit, so they don't compromise reliability.
    So they could make more torque/power already if they wanted to?

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    Click here to enlarge Originally Posted by m54b25 Click here to enlarge
    Tranny upgrade will be for sure. But, possible 9's on a lighter powered M157, like the new 2013 AMG SL63 biturbo.
    New SL is looking pretty good right about now.

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    Not gonna lie; for such a heavy beast with just a tune, those numbers are ridiculous. Right now, I am loving this car and looking forward to what a tuned M5 can produce. To think, a 335i hasn't done this in 5 years whereas a brand new heavy ass Benz does it in a few months. Amazing!

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    Click here to enlarge Originally Posted by questforpower Click here to enlarge
    Not gonna lie; for such a heavy beast with just a tune, those numbers are ridiculous. Right now, I am loving this car and looking forward to what a tuned M5 can produce. To think, a 335i hasn't done this in 5 years whereas a brand new heavy ass Benz does it in a few months. Amazing!
    To be fair, the 335 is not an AMG equivalent model and has almost half the displacement with 2 less cylinders and smaller turbos.

    Also, it is really the fueling due to direct injection that has held the 335 back.

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    Looks like RENNtech is putting the heat on the M5.... Click here to enlarge Once RENNtech gets its hands on an E63 TT, this 10.9 will likely be around 10.7 Click here to enlarge

    Has there been any 1/4 mile records for the new M5 yet? I haven't followed the latest development details.

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    Click here to enlarge Originally Posted by Exeenom Click here to enlarge
    Has there been any 1/4 mile records for the new M5 yet? I haven't followed the latest development details.
    No as it isn't for sale in the USA yet.

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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    No as it isn't for sale in the USA yet.
    When will it hit the streets here, I can't wait.... I wonder how long it'll take to hit 10s, the battles will be epic Click here to enlarge
    2007 E63 P30
    Click here to enlarge

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    Click here to enlarge Originally Posted by Exeenom Click here to enlarge
    When will it hit the streets here, I can't wait.... I wonder how long it'll take to hit 10s, the battles will be epic Click here to enlarge
    It depends on if owners are willing to abuse the DCT or not. It should be capable of 10's fairly easily with launch control and drag radials.

    It will be here in the Summer.

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    I'm very impressed with RENNtech's improvements for the M157, but also their tune for the M278 biturbo. Not the same animal, but it would be interesting to see the 0-60 and 1/4 mile times for a 2012 E550 coupe after the RENNtech tune.

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    Click here to enlarge Originally Posted by Dueclaws Click here to enlarge
    I'm very impressed with RENNtech's improvements for the M157, but also their tune for the M278 biturbo. Not the same animal, but it would be interesting to see the 0-60 and 1/4 mile times for a 2012 E550 coupe after the RENNtech tune.
    Wondering the same with the +2012 E550 Coupe + RENNtech tune for 1/4miles!

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    Click here to enlarge Originally Posted by Dueclaws Click here to enlarge
    I'm very impressed with RENNtech's improvements for the M157, but also their tune for the M278 biturbo. Not the same animal, but it would be interesting to see the 0-60 and 1/4 mile times for a 2012 E550 coupe after the RENNtech tune.
    It's hard not to be impressed with the way they are pushing both of these twin turbo V8's.

    Would like to see M278 1/4 mile numbers, definitely.

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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Well, it didn't take long for M157's to start running 10's in the 1/4 mile now did it? 10.9@129.40, absolutely incredible. The Renntech tune on the M157 in Stage I form previously powered a car to [email]11.3@135 in the 1/4 mile. This was the Stage II package which is rated at more horsepower with a "conservative" 688 horsepower crank rating. Expect more details to come shortly on the Renntech Stage II package for the M157. For now, enjoy the World Record 1/4 mile run video below.

    Damn! The lighter E63 TT would be a real monster!
    C63 Tuned Only 60-130 in 8.71

  23. #23
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    I have great respect and appreciation for the aftermarket performance companies that conduct actual track testing to accompany their dyno charts. Tuning on the dyno is great but when paired with live track testing, they certainly produce a solid combo. RENNtech has done this with the E-Class, SL-Class, CL-Class, etc...
    2007 E63 P30
    Click here to enlarge

  24. #24
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    Click here to enlarge Originally Posted by Exeenom Click here to enlarge
    I have great respect and appreciation for the aftermarket performance companies that conduct actual track testing to accompany their dyno charts. Tuning on the dyno is great but when paired with live track testing, they certainly produce a solid combo. RENNtech has done this with the E-Class, SL-Class, CL-Class, etc...
    This is true. Renntech has been combining their press releases and dyno results with on the track numbers to back them up. They are doing it the right way and setting the standard, respect.

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