Dyno Results - Eurocharged Stage 2 - M278 E550 Coupe
Eurocharged guy told me I gained 80whp and almost 90wtq throughout the power-band. 100hp and 106tq at the crank. 20% drivetrain loss when converting wheel to crank HP/TQ.
However... please don't hate, as this is my experience, and your tune / situation might be better than mine...
The car feels a lot more sluggish than it did before and a lot less responsive. I had this tune now since end of July and can not feel any improvements. The car before seemed like a beast and now, not so much... Especially in E mode, I get nothing.
I purchased the car used, so maybe it had a tune and I didn't know? Not sure.. As per the eurocharged advice, I have disconnected the power to the ecu twice now hoping it will reset the adaptive strategy. Drove the **** out of it for weeks. However, still not the same car it was before the tune and is useless in E mode, and just ok in Sport mode.
I know the "dyno sheet doesn't lie", but I was really hoping I could feel it in the car seat. Especially after hearing so many others raving about their positive experience after getting the Eurocharged ECU tune. Maybe I need to go up against a stock E550 and see if I am faster, or someone with the same tune and see.
Last edited by venom_55; Oct 22, 2013 at 05:30 PM.
I thought the same as you. Seems low...
Any suggestions?
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I will definitely consider the downpipe next spring but wouldn't have thought it was required to notice a performance improvement over stock.
I think I need to find someone local to compare or may need to get another tune from somewhere else.
If my stock #'s look low, should I take it back to the dealer and inquire?
I considered getting the Stage 2, but felt it better to wait until I at least had downpipes.
I'm not sure why you would think you had a tune already on the car, the "before" dyno line clearly shows less power than the "after" line.
Also, did you have any problems with the trans. kicking down during the dyno? It seems that has been a problem with non-AMGs.
I plan to take mine to a dyno in then next couple of weeks so it will be interesting to see how my numbers compare (although may not be super insightful due to differences between dynos)
around town.. there is more torque.. but with the lack of traction is hard to tell the extra power.
To me the extra power change was felt on the freeway/higway. Going from 60 to 120+ was way faster than stock.
This car suffers from heat soak.. Alpha/weitec/renntech all are coming up with ways to help heat soak on these engines. The stock Amg set up is a bit better but still needs to be upgraded when pushing more boost.
Over the past summer.. i experience my car felt like it did not want to down shift on really hot, humid days. I clearly remember a 90+ degree day with 70% humidity here in Cali around early September 2013.. car felt slow!
But most days.. car simply has way too much power 3800lbs, RWD and open DIFF. My 285's are almost gone and simply have no grip to even punch 50% throttle.
I have used EC before never with issues.... have them retune to stage 1.
I guess it can't hurt to re-flash and see if there is an improvement or have another tune and compare. I will see if eurocharged guy knows local e550 coupe owners he tuned I can connect with to meet up and discuss. I would still like to drive side by side with another e550 with a stage 1 or similar tune as mine. Even my car versus stock would be a fun comparison.
It was actually the highway pulls where I expected to see the biggest difference, but surprisingly, just was not there.
I'm sorry you feel this way about the tune.
The dyno we use, Dyno Dynamics, is one of the lowest reading dynos out there and this may be why your stock numbers seem lower than others as they likely used another dyno. The numbers your car put down after the tune have the same gains as what is advertised on our website.
As part of the Eurocharged policy, if you are not happy with the tune then we can flash it back to stock for you and issue a refund.
If there is something you would like us to do, please let us know and we'd be more than happy to do so.
Thanks
I'm sorry you feel this way about the tune.
The dyno we use, Dyno Dynamics, is one of the lowest reading dynos out there and this may be why your stock numbers seem lower than others as they likely used another dyno. The numbers your car put down after the tune have the same gains as what is advertised on our website.
As part of the Eurocharged policy, if you are not happy with the tune then we can flash it back to stock for you and issue a refund.
If there is something you would like us to do, please let us know and we'd be more than happy to do so.
Thanks
Dyno results are posted below, and as per Eurocharged guys in Canada, the Dyno Dynamics is one of the lowest reading dynos out there and my stock numbers will seem lower than others posted, as they likely used another dyno.
But I am very happy with the gains and power of this tune. E mode is still like the car has no power and slow to respond, but sport mode is just intense and well worth the tune.
Adding the Weistec downpipes and removing the cats seem to help the turbos spool a lot faster and I can now hear the turbos compared to before.
Dyno results are posted below, and as per Eurocharged guys in Canada, the Dyno Dynamics is one of the lowest reading dynos out there and my stock numbers will seem lower than others posted, as they likely used another dyno.
But I am very happy with the gains and power of this tune. E mode is still like the car has no power and slow to respond, but sport mode is just intense and well worth the tune.
Adding the Weistec downpipes and removing the cats seem to help the turbos spool a lot faster and I can now hear the turbos compared to before.

or
Tune vs tune with downpipes?
Regardless, looks like 100 whp and 100 wtq approx. must be fun
I probaby should have done stock vs stock + downpipes and then vs tune but didn't think of it until after. Just did old vs new.
However... This is also very very different than the first time (look at first post dyno) of just stock vs stage 2 tune.
I speak from experience.. the extra octane will be candy to your tune and engine.
Right now i'm running 3 to 4 gallons of E85 on every fill up.. car is super strong!
To the point, I'm not going to put on DP's.. probably end up leasing a new C63 and tuning it . The lack of traction (open diff) is prob the only regret i have about this car. But in all E550 coupe is a rare bird that with tune and DP would make other cars feel over priced.
I speak from experience.. the extra octane will be candy to your tune and engine.
Right now i'm running 3 to 4 gallons of E85 on every fill up.. car is super strong!
To the point, I'm not going to put on DP's.. probably end up leasing a new C63 and tuning it . The lack of traction (open diff) is prob the only regret i have about this car. But in all E550 coupe is a rare bird that with tune and DP would make other cars feel over priced.
We have 94 at a few gas stations so will look to use that gas and see if I notice.
Either way, very fun tune but if better gas or an octane booster with fill up helps throttle response I will give it a go. Thanks for the suggestion!


