Kleeman K1 Dyno Results
Keep in mind that every car is and can be different from the next, and dyno numbers only mean something if it's done on the same car, same dyno, same condition, same operator, and in a relatively short distance in between (i.e., not dyno numbers from years ago).
It's all about the delta...so if you're seeing 413rwhp after your flash and your baseline was 360rwhp (if you did a baseline), then the gains would be on par with someone whose baseline was 370rwhp and post-flash 420rwhp.
I wouldn't worry too much about it, your numbers seem on par.
404.52 RWHP / 361.19 RWTQ (A/F of 12.55 @ 6000 RPM)
That would seem about right considering even money made less hp to the ground with his secondaries still in place (however he did make a lot more torque...which is a little odd)
Keep in mind that every car is and can be different from the next, and dyno numbers only mean something if it's done on the same car, same dyno, same condition, same operator, and in a relatively short distance in between (i.e., not dyno numbers from years ago).
It's all about the delta...so if you're seeing 413rwhp after your flash and your baseline was 360rwhp (if you did a baseline), then the gains would be on par with someone whose baseline was 370rwhp and post-flash 420rwhp.
Keep in mind that every car is and can be different from the next, and dyno numbers only mean something if it's done on the same car, same dyno, same condition, same operator, and in a relatively short distance in between (i.e., not dyno numbers from years ago).
It's all about the delta...so if you're seeing 413rwhp after your flash and your baseline was 360rwhp (if you did a baseline), then the gains would be on par with someone whose baseline was 370rwhp and post-flash 420rwhp.
I wouldn't worry too much about it, your numbers seem on par.
404.52 RWHP / 361.19 RWTQ (A/F of 12.55 @ 6000 RPM)
That would seem about right considering even money made less hp to the ground with his secondaries still in place (however he did make a lot more torque...which is a little odd)
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So many different variables can impact the results. E.g. I've seen cars drop 20HP/20TQ when the operator forgot to turn on the fans in front of the car.
If 443lb-tq to the crank is 100%
346lb-tq is x so,
346lb-tq tuned x100= 34,600, divide that by 443= 78% which equals 22% drivetrain loss
Assuming the Klemman gives you a 20lb-tq increase to the wheeels that would put this car into the 326lb-tq ish(when it was stock) to the wheel so
443lb-tq equals 100%
326lb-tq is x
326 times 100= 32600, divided by 443 = 73 which equals to 27% drivetrain loss
Like I said before, choose one:
The car is extremely weak
the dyno is not working right
the drivetrain loss is somewhere between 22% to 27%
Was it 105-degrees out with 100% humidity?
Were there any kinds of fans in front of the car?
Did the driver keep ESP on?
Did the operator take it up to 5000 RPM instead of redline?
What correction factor was used?
What is the altitude?
Did the car have 87 octane?
Was the car low on oil?
See where I'm going? All of these things could impact the results.
A bit of my C63 dyno history in my signature . . .
Last edited by MeAn63; Mar 3, 2010 at 11:40 PM.
BTW, your dyno operator could not get a good tach reading. I would go back and tell him to do this (from one of my previous posts):
*HELPFUL DYNOJET TIP: If your Dynojet Operator can not get a RPM/Torque reading there is a solution. Make sure they use the single/primary wire tach pickup and the red wire going to the coil pack. You get a perfect tach measurement everytime. My dyno operator was using a different pickup sensor previously that pulled the signal from the entire wire budle. We often got interference and bad data. Using the single/primary wire pickup will give you RPM/Torque.
FWIW, when I did my base stock dyno before my RENNtech ecu flash, I took my stock WHP / RWTQ numbers and divided by 0.8 (20% drivetrain loss) and came up extremely close to the MB advertised 451HP / 443 lb-ft TQ. I'd be willing to bet the C63's RWD platform drivetrain loss is closer to 20%; it's not AWD you know.
FWIW, when I did my base stock dyno before my RENNtech ecu flash, I took my stock WHP / RWTQ numbers and divided by 0.8 (20% drivetrain loss) and came up extremely close to the MB advertised 451HP / 443 lb-ft TQ. I'd be willing to bet the C63's RWD platform drivetrain loss is closer to 20%; it's not AWD you know. 
As far is your number, I totally believe your numbers, your numbers make sense(just like most dyno numbers I have seen). His numbers are extremely low but regardless you can always calculate the drivetrain loss by doing that simple equation.

my .2c
4th gear:
370whp/367tq before
411whp/373tq after
5th gear:
369whp/372tq before
418whp/387tq after
As people said, baseline is important, but your tq numbers seem low compared to you whp numbers (ie. if one was low I'd expect the other to be low too...).
With all of that, dynos are obviously not full proof...any number of things can be going on that cause your "low" tq values.

Anyway, newdude, using the factory torque output in a drivetrain loss calculation is only valid if there was a stock rwtq baseline. You can't really compare the 346rwtq tuned with the stock 443ft-lbs crank for calculating drivetrain loss because they're under different conditions. In other words, the tuned crank tq is more than 443ft-lbs. Also, different dynos will yield different "drive train loss", i.e. some dynos read higher and some read lower. Say, if I were to go on a dyno that showed baseline of 370rwhp stock, and someone goes on a different dyno that showed 350rwhp stock. Once again, it's all about the delta, and without more information and a baseline, everything is just pure speculation.
4th gear:
370whp/367tq before
411whp/373tq after
5th gear:
369whp/372tq before
418whp/387tq after
As people said, baseline is important, but your tq numbers seem low compared to you whp numbers (ie. if one was low I'd expect the other to be low too...).
With all of that, dynos are obviously not full proof...any number of things can be going on that cause your "low" tq values.
Your 5th gear dyno pulls equal to 509.63hp (crank).
A baseline would've given the post-tune runs something to compare to - otherwise, as others have stated, it's merely conjecture. IMHO.


