Ever wonder if CLK63 is making the MBs claimed 475 Bhp
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From: Sherman Oaks, CA
CLK 63
Ever wonder if CLK63 is making the MBs claimed 475 Bhp
No way in Hell my car is making anyware near that figure MB advertises.
What a disappointment. Most I was able to see was 364 hp to the rear wheels.
Figure there is 20% drivetrain loss even with that added on it would equate to 435 at the crank.
DEAR MB/AMG REPRESENTATIVES WHERE IS MY MISSING 40 HP????
What a disappointment. Most I was able to see was 364 hp to the rear wheels.
Figure there is 20% drivetrain loss even with that added on it would equate to 435 at the crank.
DEAR MB/AMG REPRESENTATIVES WHERE IS MY MISSING 40 HP????
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From: Los Angeles, CA
Mercedes CLK63 Black / C36 / SLK55 / GLC63
Evo Sport's base line stock HP was 418. Sounds like something is off with your car. If you car is in southern california, you might take it to Evo Sport for a Dyno just to make sure the numbers are right.
Dyno Chart
Dyno Chart
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From: Hotlanta
AMG
Did you have the car in dyno mode? How many miles do you have on the car? What were the conditions that day? I wonder if not having 93 octane affected your dyno test?
Dyno equipment can vary and even pulls on the same equipment on different days can yield different results.
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CLS55 2006, CLS 63S 2015
Evo Sport's base line stock HP was 418. Sounds like something is off with your car. If you car is in southern california, you might take it to Evo Sport for a Dyno just to make sure the numbers are right.
Dyno Chart
Dyno Chart
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From: Naperville, IL/Chicago
2008 CLK63 Black Series 2012 C63 Black Series 2014 SLS Black Series
Wrong, there were no mods at that time, 419whp was my baseline (stock) figure, multiply X 18% (driveline loss) and the figure is 495HP @ the crank, only 5 shy of what MB claims. After all the mods where done the car made 502whp or 593 @ the crank. BTW, there is no "standard" driveline loss figure. It is common to use 17%-20%. There are many variable such as wheel/tire weight, brake rotar weight plus about 100 more things that need to be determined before you can calculate an exact loss factor. I'll bet the loss factor is closer to 17% on my modded BS due to the Dymag wheels. 18%19% is a good rule of thumb for automatic trans equiped cars.
Last edited by jrcart; Apr 8, 2008 at 12:04 PM.
Thread Starter
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From: Sherman Oaks, CA
CLK 63
Re-calculate your math....it would equate to 455 crank hp.
Did you have the car in dyno mode? How many miles do you have on the car? What were the conditions that day? I wonder if not having 93 octane affected your dyno test?
Dyno equipment can vary and even pulls on the same equipment on different days can yield different results.
Did you have the car in dyno mode? How many miles do you have on the car? What were the conditions that day? I wonder if not having 93 octane affected your dyno test?
Dyno equipment can vary and even pulls on the same equipment on different days can yield different results.
As your conversion figures what am I missing here?? My calculator says 364 + 20%= 436
We made the pull with a big fan in placed in front, 91oct fuel, manual mode in 4th gear and dyno mode active. In reality the pull should have been done on 5th gear not 4th, on the 7sp trans 5th is the one to one gear ratio. The RWH output would be much lower on the 5th gear.
I know that there is more to be had if I had 93 or more octane, which I will do next week.
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From: Hotlanta
AMG
455 x .8 = 364.
Stock rating is 475....so 475 x .8 = 380whp. Your initial dyno pull is 16whp (approx. 20 crank hp low).
As stated earlier, this 20 crank hp could reflect using 91 octane plus other factors like the dyno machine, whether or not your car was broken in correctly, and the current mileage. Ultimately, I hope you are satisfied with your car and driving enjoyment!
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E63 P30, CL500 Sport
The Evosport CLK you are referring to was actually a black series not a normal CLK63 and yes it was completely stock. Your numbers do seem a bit low.....
444 crank hp - 18% drivetrain loss = 364 whp
I would say you're missing about 30 hp or so. Please provide more info: mileage, weather conditions, etc....
444 crank hp - 18% drivetrain loss = 364 whp
I would say you're missing about 30 hp or so. Please provide more info: mileage, weather conditions, etc....
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Thread Starter
Junior Member
Joined: Nov 2007
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From: Sherman Oaks, CA
CLK 63
The Evosport CLK you are referring to was actually a black series not a normal CLK63 and yes it was completely stock. Your numbers do seem a bit low.....
444 crank hp - 18% drivetrain loss = 364 whp
I would say you're missing about 30 hp or so. Please provide more info: mileage, weather conditions, etc....
444 crank hp - 18% drivetrain loss = 364 whp
I would say you're missing about 30 hp or so. Please provide more info: mileage, weather conditions, etc....
When I haded the car dynoed it had 5500mi
Very favorable weather, 72F, low humidity.etc
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From: Southern California
S600TT, R350
onofew:
Was the dyno done in the third gear??
You should be in 390s in the 4th and in 370s in the 3rd. Blue run is stock.
More details here:
https://mbworld.org/forums/showthrea...ighlight=clk63
How many miles on the car?
Was the dyno done in the third gear??
You should be in 390s in the 4th and in 370s in the 3rd. Blue run is stock.
More details here:
https://mbworld.org/forums/showthrea...ighlight=clk63
How many miles on the car?
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E63 P30, CL500 Sport
Thread Starter
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From: Sherman Oaks, CA
CLK 63
Vadim,
The pulls were done in 4th
you said 370hp in 3rd gear, you mean 5th gear right?
Also I don't understand why most of you guys are doing these pulls in 4th, the true 1:1 gearing the 5th gear. Would't that be the proper way of dynoing the car?
As MB_Forever noticed, do you have the A/F readings from your pull, I wonder if your car was that much on the lean side
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Looking for a new toy.
Well if running the car at a local 1/4 track is something that is doable, then that's another way to see what power you're actually putting down - trap speed are a great indicator of hp. If your traps are pretty well the same as other CLK63's are hitting, I wouldn't worry about dyno figures.
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From: California, USA
E63 P30, CL500 Sport
Vadim,
The pulls were done in 4th
you said 370hp in 3rd gear, you mean 5th gear right?
Also I don't understand why most of you guys are doing these pulls in 4th, the true 1:1 gearing the 5th gear. Would't that be the proper way of dynoing the car?
As MB_Forever noticed, do you have the A/F readings from your pull, I wonder if your car was that much on the lean side
The pulls were done in 4th
you said 370hp in 3rd gear, you mean 5th gear right?
Also I don't understand why most of you guys are doing these pulls in 4th, the true 1:1 gearing the 5th gear. Would't that be the proper way of dynoing the car?
As MB_Forever noticed, do you have the A/F readings from your pull, I wonder if your car was that much on the lean side
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From: Southern California
S600TT, R350
Speed limiter in 5th is the reason, plus lack of proper cooling (170MPH) will effect the true numbers. This is why I do 63s in 3rd and 4th to show the gains accross a wider range.
I would suggest going to the dealer and getting latest software update done. Also check stock airfilters and pull out carbon filters.
Good Luck!
I would suggest going to the dealer and getting latest software update done. Also check stock airfilters and pull out carbon filters.
Good Luck!
