Dyno results for everyone! - Mercedes Benz SLK Forum

Performance MODS for the R171 Tuning and Performance modifications for your SLK

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#1 Old 03-14-2014
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Dyno results for everyone!

  • Anyone who has dyno results, please share.
  • Please list the car, and any performance modifications.
  • If you have an upload of your dyno graph, even better.

2005 SLK55, stock (dyno in 2013 at 50k miles)
Mustang dyno
Peak HP/TQ = 280/276
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#2 Old 03-15-2014
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Quote:
Originally Posted by bumpa2 View Post
  • Anyone who has dyno results, please share.
  • Please list the car, and any performance modifications.
  • If you have an upload of your dyno graph, even better.

2005 SLK55, stock (dyno in 2013 at 50k miles)
Mustang dyno
Peak HP/TQ = 280/276
Any plans for performance modifications?


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#3 Old 03-15-2014
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Originally Posted by jameslk55 View Post
Any plans for performance modifications?
I currently have the Kleemann headers and tune. If work ever calms down I'll get it re-dynoed.
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#4 Old 03-15-2014
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Quote:
Originally Posted by bumpa2 View Post
  • Anyone who has dyno results, please share.
  • Please list the car, and any performance modifications.
  • If you have an upload of your dyno graph, even better.

2005 SLK55, stock (dyno in 2013 at 50k miles)
Mustang dyno
Peak HP/TQ = 280/276
280bhp from an AMG55? I'd take it back. You should have 360. What gives?
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#5 Old 03-15-2014
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292 bhp from an R171 350

Mine has had an ECU map, K&Ns, and a sports exhaust, although not the Brabus I now have, but a custom one that developed a fault with one box after 600 miles and had to be replaced, which I did with the Brabus system as that was the only sports system available through the Merc main dealer. I've not had it dyno'd again since that change but I would imagine it will still be this much or possibly a bit more, assuming the Brabus system works well. Certainly shows no cause for complaint in use.

Graph in my garage area. Can't be bothered with imageshack.

Last edited by dwarburton; 03-15-2014 at 09:09 AM. Reason: no image upload
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#6 Old 03-15-2014
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Originally Posted by dwarburton View Post
280bhp from an AMG55? I'd take it back. You should have 360. What gives?
dyno measurements are in whp, not bhp ... any grossing up is a guessing game

What were your whp numbers?
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#7 Old 03-15-2014
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Originally Posted by bumpa2 View Post
  • 2005 SLK55, stock (dyno in 2013 at 50k miles)
    Mustang dyno
    Peak HP/TQ = 280/276
  • Those number is not right. You got more HP then TQ. It should the other way around, about 15-20 TQ more then HP.
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#8 Old 03-15-2014
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Originally Posted by Klinh View Post
[/LIST]
  • Those number is not right. You got more HP then TQ. It should the other way around, about 15-20 TQ more then HP.
Those are the values my car pulled. Post your own if you have some contradictory (or similar) results, that's what I'm looking for.

I don't care too much about what the Mercedes factory posted (crank) values are.
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#9 Old 03-16-2014
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Mustang Dyno before and after MBH long tube headers and Kleemann tune. My HP/torque was 275/280 before and 320/325 after mods on 91 octane.

Each dyno run is a little different. I had an earlier baseline run of 276/291 prior to getting the work done. Also a Mustang dyno, but it was on 93 octane.
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#10 Old 03-17-2014
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DynoJet... 293whp/301wtq

aFe filters, resonator and secondary cat delete. Done in 4th gear, 5th gear is the 1.00 and I think it would have given higher numbers.

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#11 Old 03-17-2014
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Originally Posted by cadeca View Post
Each dyno run is a little different. I had an earlier baseline run of 276/291 prior to getting the work done. Also a Mustang dyno, but it was on 93 octane.

Yes, different dyno, days.....etc. but the character of the engine does not change. If an engine is designed for more TQ then HP, your dyno should also show more TQ then HP. AMG engine are know for more TQ then HP.
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#12 Old 03-17-2014
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Originally Posted by MarkR171 View Post
DynoJet... 293whp/301wtq

aFe filters, resonator and secondary cat delete. Done in 4th gear, 5th gear is the 1.00 and I think it would have given higher numbers.

I got around 305 WHP custom tuned with K&N filter and Charcoal filter removed.
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#13 Old 03-17-2014
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Originally Posted by Klinh View Post
I got around 305 WHP custom tuned with K&N filter and Charcoal filter removed.
What kind of dyno?
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#14 Old 03-18-2014
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Originally Posted by Klinh View Post
Yes, different dyno, days.....etc. but the character of the engine does not change. If an engine is designed for more TQ then HP, your dyno should also show more TQ then HP. AMG engine are know for more TQ then HP.
Yes, I had more torque than hp. What was your point?
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#15 Old 03-18-2014
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Quote:
Originally Posted by Klinh View Post
I got around 305 WHP custom tuned with K&N filter and Charcoal filter removed.
I haven't dyno'd again since Eurocharged tune. I wonder what kind of numbers I would get now.

Sold: '07 SLK280 | 18" TSW Bremmas | Toyo T1-R 225F/245R | SmartTop V.3 | Green Filters
Sold: '07 SLK55 AMG | 030 Package | Custom X-Pipe | Secondary Cat Delete | SmartTop V3.33 | Mod R170 Antenna | BC Racing Coilovers | Racingbrake Two-Piece Rotors | Enkei Pf-01, Michelin Super Sport 245F/275R

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#16 Old 03-18-2014
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Originally Posted by cadeca View Post
Mustang Dyno before and after MBH long tube headers and Kleemann tune. My HP/torque was 275/280 before and 320/325 after mods on 91 octane.

Each dyno run is a little different. I had an earlier baseline run of 276/291 prior to getting the work done. Also a Mustang dyno, but it was on 93 octane.
If you're getting those gains with the headers and the tune, I wonder what the figures would be with the headers alone. Or did the before dyno include a stock Kleemann tune?


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#17 Old 03-18-2014
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Originally Posted by Klinh View Post
I got around 305 WHP custom tuned with K&N filter and Charcoal filter removed.
I thought the charcoal filter mod only applied to another MB model-not the R171?


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#18 Old 03-18-2014
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Originally Posted by cadeca View Post
Yes, I had more torque than hp. What was your point?


When you said this...............

Quote:
Originally Posted by cadeca View Post
Each dyno run is a little different.

... and thought you were responding to my post #7.
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#19 Old 03-18-2014
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Originally Posted by jameslk55 View Post
I thought the charcoal filter mod only applied to another MB model-not the R171?

Mine is 2009 model and has the charcoal filter inside the air filter box.
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#20 Old 03-19-2014
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Originally Posted by jameslk55 View Post
If you're getting those gains with the headers and the tune, I wonder what the figures would be with the headers alone. Or did the before dyno include a stock Kleemann tune?
No, unfortunately the before dyno was when the car was completely stock (except for a LSD).


Klinh, wasn't referring to your earlier post to Bumpa. I was surprised at the significant difference in torque when the car was essentially unchanged.
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