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  1. #1
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    Renntech pushes the M157 V8 TT in a 2012 CLS63 AMG to 627 wheel horsepower - Billet turbo and transmission upgrades coming

    Renntech moves the M157 bar yet again with a dyno run of 627 wheel horsepower on 93 octane setting a new M157 record. This comes less than a month after Renntech was the first (and only) tuner to break the 600 wheel horsepower mark on the M157. Renntech now hopes to clear the 700 wheel barrier and the next steps for the M157 are billet turbo upgrades and transmission upgrades. Renntech is aiming to have these ready by the end of the year.

    Click here to enlarge
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    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
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    what are the new mods?

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    how did they jump from 600 to 627?

    sounds like BS to me

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    Click here to enlarge Originally Posted by Portman Click here to enlarge
    how did they jump from 600 to 627?

    sounds like BS to me
    Of course it sounds like BS to you. You put more emphasis on crank dynos without timeslips to back them up then progressive improvements at the wheels on a dynojet with timeslips to match. It's amazing how your thought process works.

    The details of the mods are on the graph, try actually looking at it.
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    2 out of 2 members liked this post. Yes Reputation No
    Click here to enlarge Originally Posted by Portman Click here to enlarge
    how did they jump from 600 to 627?

    sounds like BS to me
    Go post some more flywheel dynos.

    Seriously...you are a piece of work. LOL!


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    Click here to enlarge Originally Posted by M3_WC Click here to enlarge
    Go post some more flywheel dynos.

    Seriously...you are a piece of work. LOL!
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    RT revised calibrations are done in-house thus they can get improved power thru their own R&D. Also, if you want they can turn off ECO mode Stop/Start system for M278/M157 =)
    Last edited by LW@MTG; 03-13-2012 at 09:35 PM.

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    Click here to enlarge Originally Posted by m54b25 Click here to enlarge
    RT revised calibrations are done in-house thus they can get improved power thru their own R&D. Also, if you want they can turn off ECO mode Stop/Start system for M278/M157 =)
    There you go...
    Chrome Space Bar Issue: http://www.boostaddict.com/showthrea...338#post738338


    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
    Click here to enlarge Originally Posted by m54b25 Click here to enlarge
    RT revised calibrations are done in-house thus they can get improved power thru their own R&D. Also, if you want they can turn off ECO mode Stop/Start system for M278/M157 =)
    I'd give you a thumbs-up, but I don't have enough rep points.Click here to enlarge

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    Dammit seeing something like this pisses me off, if I had a tuner who could tune the N63 and have our V8TT right next to that or above it. Someone who has a clue needs to start tuning N63's. Anyways awesome job Renntech and it makes me jealous + I saw the N63 Renntech tune numbers and why are they sooo low? Lower than Dinans :-(

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    Click here to enlarge Originally Posted by Jimefam Click here to enlarge
    Dammit seeing something like this pisses me off, if I had a tuner who could tune the N63 and have our V8TT right next to that or above it. Someone who has a clue needs to start tuning N63's. Anyways awesome job Renntech and it makes me jealous + I saw the N63 Renntech tune numbers and why are they sooo low? Lower than Dinans :-(
    Hasn't Renntech started tuning BMW's. You should give them a call.


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    Click here to enlarge Originally Posted by Jimefam Click here to enlarge
    Dammit seeing something like this pisses me off, if I had a tuner who could tune the N63 and have our V8TT right next to that or above it. Someone who has a clue needs to start tuning N63's. Anyways awesome job Renntech and it makes me jealous + I saw the N63 Renntech tune numbers and why are they sooo low? Lower than Dinans :-(
    I think Renntech is just getting started on that. Also, it's clear to see where their tuning focus currently is.
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    Over 600 whp on a stock twin turbo v8, besides the intake and intercooler. This is still on stock downpipes correct, the cats would make a big difference in power too if removed. BEAST.
    Burger Motorsports
    Home of the Worlds fastest N20s, N54s, N55s, S55s, N63s, and S63s!

    It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.

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    Click here to enlarge Originally Posted by fastgti69 Click here to enlarge
    Over 600 whp on a stock twin turbo v8, besides the intake and intercooler. This is still on stock downpipes correct, the cats would make a big difference in power too if removed. BEAST.
    I don't think it's stock downpipes. I assume the cats are in the downpipes or right there and the cats have been modified. Maybe there are two sets.
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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
    I don't think it's stock downpipes. I assume the cats are in the downpipes or right there and the cats have been modified. Maybe there are two sets.
    The CLS63 has one set of primary cats, no secondary cats. Definitely should see better gains going full catless.

    Vivid Racing project CLS63, catless setup:

    Click here to enlarge
    Click here to enlarge
    Click here to enlarge


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    vivid racing? surprised..
    Burger Motorsports
    Home of the Worlds fastest N20s, N54s, N55s, S55s, N63s, and S63s!

    It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.

  17. #17
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    Click here to enlarge Originally Posted by M3_WC Click here to enlarge
    The CLS63 has one set of primary cats, no secondary cats. Definitely should see better gains going full catless.

    Vivid Racing project CLS63, catless setup:

    Click here to enlarge
    Click here to enlarge
    Click here to enlarge
    Well there we go, looks like they are right up front.
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  18. #18
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    There are 2 cats inside each housing, from what I understand. I can find the post on another site if you want to see it: came from an owner who opened the cat housing.

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    Here's the quote: "you see it from outside as 1 primary cat, but inside there is 2 on each side.

    the second O2 sensor is in the middle and there it is empty ( i saw it by my own eyes )

    if anyone opened SLR exhuast, he will know what i am talikg about, because it is the same method, and i am sure it is less than 600 cell"

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    Click here to enlarge Originally Posted by Dueclaws Click here to enlarge
    Here's the quote: "you see it from outside as 1 primary cat, but inside there is 2 on each side.

    the second O2 sensor is in the middle and there it is empty ( i saw it by my own eyes )

    if anyone opened SLR exhuast, he will know what i am talikg about, because it is the same method, and i am sure it is less than 600 cell"
    Yes, you are correct. The M157 contains 2 ceramic monolith with a volume of 1.5L per side. Each catalytic front monolith has 600cpsi cel and the rear (after post-o2 planar sensor) 400cpsi cel.

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    Click here to enlarge Originally Posted by Dueclaws Click here to enlarge
    I'd give you a thumbs-up, but I don't have enough rep points.Click here to enlarge
    Thanks! Did same!

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    Thanks!

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    I wasn't that impressed until I saw the torque numbers. Don't get me wrong, the hp improvement is awesome. But +200lb-ft is siiiiiick. Baby got grunt.

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    Click here to enlarge Originally Posted by Jimefam Click here to enlarge
    Dammit seeing something like this pisses me off, if I had a tuner who could tune the N63 and have our V8TT right next to that or above it. Someone who has a clue needs to start tuning N63's. Anyways awesome job Renntech and it makes me jealous + I saw the N63 Renntech tune numbers and why are they sooo low? Lower than Dinans :-(
    Very soon RT will have it avail for the F series N63/N54 & N74 V12 =) Finishing up calculation last I heard...

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    M157 Dyno results in 4th gear, speed km/h & Torque unit Nm (Newton Meters).

    RENNtech CLS63 Dyno Nm KmxHr.pdf

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