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hi all
like it says i did the dyno today before and after the ECU tuning
first of all i want to thank Eurocharged for there services and good communication
i perches my GENUS programmer and there was some problems in the beginning it take 3 days to solve it and thy was more then helpful
when i reprogram the car i felt the power in low RPM and the gear changes is more aggressive i didn't know what is the gain
today i went to the dyno to see the results i did 6 runs before the tune and 7 after the tune
you can see the results do you think it worth the 750$ + shipping ??????
for me i don't think it worth and im blaming my self let me know what you think

before tuning

ECU tuned

Sportstick

Unless you drive around with a stopwatch, or sit around and compare dyno charts with friends as a hobby, I would not care about the numbers. How does it feel to drive? If you feel an improvement, only you can put a dollar value on that. Certainly, if you feel no change, a refund may be in order.

until the end

I dont want to comper or drive with stopwatch but like to take what i pay for and i payed for 22-25hp\tq
What you think when your looking to the chart ??

loungn14

I think you are confusing how to read the dyno graph. Look at the MASSIVE difference in power and torque from 2500-4800rpm. You will surely feel that.

You made slight gains in the top end, but most of the gains are in the low to mid rpm range where you spend most of your driving time.

Shifter

Plus you can't expect that much of a gain on a NA car with just a tune.
You mentioned it shifts better, that alone with the increase in tq may make it better to drive no?

Glyn M Ruck

We will not get into the vagaries of dyno results, not only due to float, but change in ambient conditions. Especially IAT.

All ECU tunes give something somewhere & take away somewhere else. For a given fuel octane rating & density there are very small improvements available from ECU tunes. Benz tunes are very conservative & guarantee driveability in vastly variable conditions & varying fuel.

I have posted previously on the sophistication required in dyno facilities for making absolute readings ~ backed by persons from Cosworth. I'm not going down that road again.

It's for you to decide whether the "improvements" are worthwhile.

Glyn M Ruck

BTW ~ was a throttle reset done before each dyno run? If not you do not know if you were achieving WOT so the results are meaningless. Dyno basics 101.

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ok im not expecting that much but if the c300 gains 12 whp and 20 tq i think the c350 should gain more
see this video

ncglock

I have the identical car. I did exhaust nad intake work prior to my eurocharged tune. I completely agree with your dyno results in that I feel the biggest difference between 40 and 85 MPH.

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Did you dyno it ???? What is the results ???

ncglock

NO dyno. I'm not expecting drastic changes with the 350. I was pleasantly surprised with the driving experience. Have you done any other mods? And did you tell euro charged before they performed the tune? I know that was a big deal, since they adjusted the tune for additional air and exhaust performance.
The other thing is the base line, seems a little light compared to the stock numbers, I understand there are some losses over time but I figured for a 09 your base line numbers would of been higher

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Well i have K&N filter exept that the car is bone stock
i didnt see any Problem with base line how much is the stock no. ???

loungn14

you realize you gained over 70 WHEEL TORQUE at 3800 RPM correct?

Pap300CE

I personally think you made out pretty well with the tune. You have to take into consideration that the cars that benefit the most from ECU upgrades are forced induction. As a long time VW tuned I can provide an example. Take two 02 GTIs: one 200hp VR6 and the other a 1.8 turbo 4cyl. From experience the VR6 will gain on average 8/9hp and if you are lucky 12lbs tq. The 4 turbo on the other hand will see on average 30/35hp and around 80/90 lbs tq depending on supporting mods of course. I feel you made out pretty well with your C class

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yah i know i gained tq and hp on lower RPMs and im thankfull for that and the gear changes is more aggressive i like it but im talking about the over all gaining power
in the breves video the c300 gain 12hp and 20 tq ?? why many didn't ???

until the end

Any one did dyno ???

ggms16

I don't understand his complaint. you don't have a turbo in your car, just a simple ECU mod, it is amazing what it actually does to your car and for the price in my opinion is a great deal.

Gaining HP in mercedes and in non-turbocharged cars in general is very hard to do.

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ok i know it is hard to gain HP but can you explane this to me

ggms16

The C350 is the top of the line (not AMG), so It won't surprise me if Mercedes engineers spent more time pushing the C350 to the limits than they did on the C300. That may be why its easier to get juice out of the C300.

kevink2

I believe the ragged, oem dyno curve is not true below 5500 rpm. You don't pick up spurts of 75-95 ft-lbs at the wheels like that, unless the tune includes a turbocharger.

.

Glyn M Ruck

+1^

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Eurocharged Performance Engine Software

Make:Mercedes Benz
Model:C350 V6
Series:W203/W204
Years:2006-Present
Flash Type:BDM
EuroTuner v2.0 Compatible:No
Dealer Flashable:No

............................ Stock.....Eurocharged
Peak Power (bhp) 268.............285
Peak Torque (lb-ft) 258.............271
Speed Limiter* (mph) 155.............200+

that is what i perches whar is the gain in the HP ?????

kevink2

You CAN'T read anything reliable off that botched dyno run.

That said, my guess based on the data above 5500 rpm, is that both runs shown are the same oem run, and the tuned run was never plotted.

.

Glyn M Ruck

Even your butt dyno should detect that sort of difference.

Sportstick

Which brings us full circle to who cares what the numbers are? If it feels better enough to justify the price, this was a successful operation. If it doesn't feel better enough to justify the price, even great test results are meaningless. One of the lessons I used to teach my younger Marketing staff is that people don't buy features...they buy benefits.