RADO C250 Upgrades Dyno Figures

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Old 06-05-2013, 02:58 PM
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2012 Mercedes SLS, 2014 Mercedes SLS Black Series, 2014 E63S, 2013 S550, 2012 ML63, 2013 C250
RADO C250 Upgrades Dyno Figures

We just did our first round of testing with the RADO parts for the C250. We tested in 3 different configurations. We tested the car stock, with our non heat treated off-road down pipe and with our non heat treated off-road down pipe and our intercooler. We saw some great numbers so you can expect some real noticeable differences with our parts installed on the car.

I have put all the numbers in an easy to read spreadsheet so that you can easily compare everything. We will also be testing the car at Irwindale drag strip in all of the different configurations as well.

It was 83 degrees, 29.74 in-Hg and Humidity was at 33% and all dyno runs were made on the same Dynojet within 2 hours.

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File Type: xml
Dyno stock, dp, ic&dp xml.xml (19.0 KB, 760 views)

Last edited by Staff@WORLD; 06-05-2013 at 05:56 PM.
Old 06-05-2013, 07:22 PM
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C204 C250-CDI
Those numbers suggest a very obvious gain, it's very nice to have a large increase in the mid range which is where most driving time is spent it can only be even higher especially in the top end with a tune and even a turbo swap considering you have a better IC to take advantage of if upgarding to a larger turbo and more boost and air volume

Out of curiosity is there a way of getting numbers below 4000rpm with the dynojet used ? would be nice to see the increases from low down
Old 06-06-2013, 12:51 AM
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C250 Coupe
Any figures at the lower 2000-4000rpm bands?
Old 06-06-2013, 01:01 AM
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Originally Posted by viZual
Any figures at the lower 2000-4000rpm bands?
No we dont do any testing at that RPM.
Old 06-06-2013, 03:23 AM
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Any 0-60; 0-100; 1/4 mile times? I guess that will be obtained when it's tested at the drag strip.
Old 06-06-2013, 09:46 AM
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2013 C250 Coupe
Good, Good, Good
Old 06-06-2013, 09:47 AM
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C250 CGI has 204hp at 5500 RPM.
Old 06-06-2013, 12:13 PM
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These are some significant improvements and we will continue to work on this platform to get even more improvements from it. We have at least 3 more parts in the pipeline on top of what we already have released for the car.

We should have a full exhaust system available for this car by next week.

We are starting to prototype some other parts next week on the car that we should be able to have in production pretty quickly. We expect to have a pretty good catalog of parts ready for the car very soon.
Old 06-06-2013, 09:13 PM
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C204 C250-CDI
Originally Posted by dav461
C250 CGI has 204hp at 5500 RPM.
The numbers from the dyno graph above would relate to ATW (at the wheels) figures usually all dynos measure power and torque this way.

The 204hp would be the MB OEM FWHP claim (at the flywheel HP) that's the way most if not all manufacturers call their output figures
Old 06-06-2013, 09:14 PM
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C204 C250-CDI
Originally Posted by Staff@WORLD
These are some significant improvements and we will continue to work on this platform to get even more improvements from it. We have at least 3 more parts in the pipeline on top of what we already have released for the car.

We should have a full exhaust system available for this car by next week.

We are starting to prototype some other parts next week on the car that we should be able to have in production pretty quickly. We expect to have a pretty good catalog of parts ready for the car very soon.
Look forward to seeing the on road test results, as this will shed more light on the lower end power, response and performance characteristics of the modifications
Old 06-07-2013, 10:19 AM
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2013 C250 Coupe
Are you guys going to be making YouTube content for the modifications like the E and M AMGs?
Old 06-07-2013, 03:47 PM
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Originally Posted by Strfry
Are you guys going to be making YouTube content for the modifications like the E and M AMGs?
One thing at a time. We will make it but we are waiting for our muffler sections to get done.
Old 06-07-2013, 08:08 PM
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Originally Posted by Staff@WORLD
No we dont do any testing at that RPM.
Why not?
Old 06-07-2013, 09:13 PM
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Originally Posted by kkd79
Why not?
Because the car downshifts on the dyno in that RPM range so we are not able to get a clean run.
Old 06-10-2013, 07:16 PM
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Originally Posted by Staff@WORLD
Because the car downshifts on the dyno in that RPM range so we are not able to get a clean run.
Dang you guys for not getting the CEL light off. I might purchase...currently researching O2 bypasses. I cannot stand lights on my dash. I was annoyed with the TPMS light when I switched my rims out and just got that taken care of. Grrrrrr. The gains are enough for me to take the plunge to purchase. Can you say tune + downpipe? drool.....
Old 10-31-2013, 03:46 AM
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2012 C204
To follow up, was there ever a drag strip run? What is the status on the development of your ECU tunes?
Old 09-20-2015, 05:41 PM
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I was interested in some dag strip numbers as well. Being that this thread is nearly 3 years old, I assume it never happened. My guess is the numbers showed little if any improvement being that the peak HP numbers were minimal with all the big gains made in an area of the power band not used at the drag strip. The downfalls of a small turbo, good response and toque, but low peak hp.

I must say the car doesn't feel as weak as these dyno numbers suggest. I just recently drove a 2015 Mustang Ecoboost 2.3l with 310 HP and it didn't really "feel" that much stronger than the C250. The performance numbers say otherwise as the Stang is a full 1.3 seconds quicker to 60mph and in the 1/4 mile traveling 102mph thru the traps vs 92mph for the Benz. That's a 10mph difference! I'd say if you were able to shift the Benz earlier WOT before the turbo runs out of steam, and speed up the granny shifts it does, it would generate much better acceleration times. I read the C250 coupe which has different trans programming shifts much quicker.
Old 09-24-2015, 01:09 PM
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Any emission issues with these mods? Being in Cali and having to worry about passing smog is big selling point. At least for me.
Old 09-30-2015, 12:55 PM
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Any emission issues with these mods? Being in Cali and having to worry about passing smog is big selling point. At least for me.
I have every RADO part installed on my C250, include that with other mods, and I am very happy blowing away annoying BMW's, especially the 335i's! PM me, and ill let you know how to pass emissions LEGALLY.
Old 09-30-2015, 04:29 PM
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Man, you need to post some acceleration vids! I would like to see how you pull against a stock C250 or C350. Seat of the pants can be deceiving. Just video your speedo from 0-60 and we can get an idea of the gains. Or Set up a race with a 335 whether it be a roll race or from dead stop. Gotta see for myself!
Old 09-30-2015, 07:55 PM
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PM sent Robert!!!!
Old 08-12-2019, 02:10 PM
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Mercedes C250 2014 sports sedan
Purchasing?

Where do i purchase this part for my 2014 c250?

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