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E400 Remap Massive gains !

Discussion in 'Tuning, Styling and Performance.' started by Road Rage Performance, Jul 9, 2018.

  1. Road Rage Performance

    Road Rage Performance MBO Forum Supporter

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    Your Mercedes:
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    Mercedes E400 Making MASSIVE POWER GAINS !

    The Mercedes E400 houses a 3.5L Twin turbo V6 engine that is massively undertuned from the factoy.

    In stock form these are quoted to produce 330Bhp and 354Ftlbs of torque but after inital dyno runs we found the car to me making a fair amount more torque at near 400ftlbs with the same horsepower .

    Due to this being a relitively undeveloped engine in the tuning world we set to developing a stage one for this platform , after many hours of perfecting the software the final figure was

    420Bhp and 530Ftlbs of torque.

    Thats a whoppping 90Bhp and 130Ftlb gain over stock , even cosidering it was a 30 degree day at the workshop .

    With some upgraded parts this could soon be a very good base for building a C63 Rival.

    YOUTUBE VIDEO
     
    Dean Fletcher and flowrider like this.
  2. bembo449

    bembo449 Senior Member

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    oh , I love a Q car , very impressive gain :)
     
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  3. flowrider

    flowrider Senior Member

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    I'm not surprised by these gains, MB undertune a lot of their cars otherwise why would you buy a 6.2l V8 when a 3.5l V6 is just as fast or faster. The latest AMG's are 4.0l twin turbo's and sell for a premium price so why would MB tune a cheaper car to the same degree.
     
  4. OP
    Road Rage Performance

    Road Rage Performance MBO Forum Supporter

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    Well im sure we are all very happy that they do undertune them lol , gives me a job and you guys extra ponies
     
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  5. anglaslt

    anglaslt Senior Member

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    Very impressive figures.

    Probably the majority of C207 E400s have the M276 DELA 30 3.0 V6 engine developing the exact same 333 hp and 480 Nm (354 lb ft) of torque as the M276 DELA 35 3.5 V6 fitted during the last months of C207 E400 production. It's difficult to see why MB even bothered to change engines but the charging pressure for the twin turbos is reduced on the 3.5 V6.

    Given that the 3.0 V6 has a higher charging pressure I'm interested to know if you would you still expect similar gains?
     
  6. OP
    Road Rage Performance

    Road Rage Performance MBO Forum Supporter

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    As far as im aware the 3.0l versions tune for an extra 80bhp , im yet to have one in yet
     
  7. Capra

    Capra Senior Member

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    The 3.5L must be very rare.
     
  8. OP
    Road Rage Performance

    Road Rage Performance MBO Forum Supporter

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    According to the website 'howmanyleft.co.uk' there are only 800 of these 2015 3.5L models on the road So yeah quite rare, maybe ill hold out developing tuning parts for these Not enough of them around lol
     
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  9. anglaslt

    anglaslt Senior Member

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    It's difficult to say because although expected to change end 2014/early 2015 it seems as though a lot of 2015 and 16 cars were 3.0 V6s. Looking on Autotrader it appears that the dealers frankly don't know what they are either, advertising them as E400 3.5 but showing a 3.0 engine in the technical spec. :( I think if it's designated "AMG Sport Plus" it's 3.0 and if it's "AMG Line" it's 3.5, but I may be entirely wrong.

    As I said earlier it's difficult to understand why MB even bothered. It doesn't make a lot of difference and I doubt anyone could tell the difference from driving them. Even more confusing, the current model E400 coupe has reverted to the 3.0 V6.

    If it's a C207 I suspect the only foolproof way of knowing is to look at the V5c.
     
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  10. OP
    Road Rage Performance

    Road Rage Performance MBO Forum Supporter

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    Yeah I noticed most of these on autotrader are listed as 3.0L . This one was 2015 and shows up on the registration check as 3.5L . That’s the easiest way to tell because the engines look very similar


    Sent from my iPhone using Tapatalk
     
  11. Ronin.cmi

    Ronin.cmi Registered

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    That's a very big increase in torque. I'm wondering if the gearbox can take it. Does anyone know the torque rating for the gearbox?
     
  12. Bopo

    Bopo Senior Member

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    9G-tronic is apparently 516 lb ft. A bit worrying as my tune apparently gives 550 lb ft...
     
  13. alexanderfoti

    alexanderfoti MBO Forum Supporter Authorised Forum Supporter

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    The torque rating is a continuous rating, not a peak.
     
  14. Sparkleandflex

    Sparkleandflex New Member

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    Does anyone know the part number for the stock turbos and intercooler? I'm trying to figure out how much is the same as the de30 before i ramp up modding my de35.... Impossible to find any part numbers for the de35la.. from what I've gathered it's exactly the same head, injectors, pistons, etc... Minus intercooler, piping, possibly waterpump inlet (haven't verified this yet), and exhaust... Would be awesome if those turbos were untapped potential mb gave up on to meet emissions- the likely reason they dumped it for the de30..
    I'm in love with the idea of 10psi boost over 26..
    And yes I'm a mechanic, no need to tell me to just buy a de30.
     

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