C55 Dyno: What's the Stock HP/TQ?
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2006 C55 AMG, 2.8L Quattro, Softail Nostalgia 1550 (Stage III), Sporster (slammed)
C55 Dyno: What's the Stock HP/TQ?
I saw a dyno chart of a stock C55 and I think it said 327 HP @ 5700 and 341 TQ @ 4200 at the RW. With 16% drivetrain loss that would be 380 HP and 395 TQ. But MB says 362 HP @ 5,700 and 376 TQ @ 4,000 rpm. Anyone know what they usually make stock at the RWs?
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2006 C55 AMG, 2.8L Quattro, Softail Nostalgia 1550 (Stage III), Sporster (slammed)
Yeah. And I saw your dyno sheet up on Drag Times. Pretty impressive too. Most there were coming in right around 300 RW hp. With 19% or 20% frictional loss you would be right at the factory numbers. I thought 310 might be typical RW. And dyno results can vary widely but not usually by 20 or 25 hp.
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Last edited by 1Lop2K5C; Sep 25, 2007 at 03:27 PM.
Thread Starter
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Joined: Jan 2007
Posts: 461
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From: Northern Virginia
2006 C55 AMG, 2.8L Quattro, Softail Nostalgia 1550 (Stage III), Sporster (slammed)
Powertrain performance
Wheel power 325 bhp @ 5530
Wheel torque 335 lb-ft @ 2996
Stated engine performance
Engine power 362 bhp @ 5750
Engine torque 376 lb-ft @ 4000
I read that as 325 RW HP and 335 RW TQ (they call it wheel power). With 17% power-tain loss that would be 380 HP and 391 TQ at the crank. What confuses me is their use of "bhp" when showing what they imply is wheel power. I thought "bhp" meant base horsepower or crank horsepower.
Wheel power 325 bhp @ 5530
Wheel torque 335 lb-ft @ 2996
Stated engine performance
Engine power 362 bhp @ 5750
Engine torque 376 lb-ft @ 4000
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Yeah. And I saw your dyno sheet up on Drag Times. Pretty impressive too. Most there were coming in right around 300 RW hp. With 19% or 20% frictional loss you would be right at the factory numbers. I thought 310 might be typical RW. And dyno results can vary widely but not usually by 20 or 25 hp.
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http://www.rri.se/popup/performanceg...p?ChartsID=607
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bhp = brake horse power
There can be big swings on readings depending on the brand dyno a car is run on. There are also weighting factors that can be applied to adjust readings. From what I understand, Dynojet units tend to come in on the most realistic side of numbers.
There can be big swings on readings depending on the brand dyno a car is run on. There are also weighting factors that can be applied to adjust readings. From what I understand, Dynojet units tend to come in on the most realistic side of numbers.
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C43/55,2k11 Volvo S60 T6AWD,2k Audi B5 S4,95 Eagle Talon Tsi AWD 500+awhp
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Interesting. I have a reading from a Dyno-Dynamics on my GTO and based on what others have run, the numbers seemed high. I found a local shop that has a Dyno Jet unit so I may put the car on there to compare the numbers.
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I've dyno'd my car numerous times on different dynos and can tell you that Dyno-Dynamics yields higher numbers than Dyno-Jet.
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That's what I've been told by many others as well. What was the approximate delta between the two different readings? I'm assuming of course you may have run the car in the same configuration on both dynos. Thanks.
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My SLK55, which has the same engine, dyno'd just under 300whp. I would say that the norm is 290-310whp for these engines. There is no way that a stock C55 will dyno at 327whp, unless the dyno is not accurate.
