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2014 E63s
Bought a 20k mile E63s in January 2018. Finally got it on my son-in-law's dyno. I was a little surprised at the numbers as this dyno is pretty accurate and is used to certify local NASA race cars. He also tunes cars for the Pikes Peak Hillclimb. Planning to get a Kleeman tune here in the near future so should be a good comparison.
You were surprised positively? If the dyno is showing wheel horsepower that is excellent and 10-155 above rating. If it's corrected and crank, it's right at the 577 as advertised?
Wow those are the same numbers as some conservative tunes for this car
you sure that thing is stock?
my thoughts exactly
OP - congrats
many times sellers don't disclose tuning to the ecu and you can pop the edu and check to see if it has a drill hole on it's bottom ... my understanding is that drilling the ecu bottom plate is a requirement to tune the m157
you can also have a tuner look at the ecu to determine if it's got an oem tune or aftermarket tune
Bought it Mercedes of Cincinnati and they originally sold the car new. If they new about a tune, they did not disclose it. I have been in for warranty since then and the dealer didn’t say anything.
Bought it Mercedes of Cincinnati and they originally sold the car new. If they new about a tune, they did not disclose it. I have been in for warranty since then and the dealer didn’t say anything.
nice thing is that if there is a tune the ecu file may have a date when it was last accessed which will be before you bought it ... would keep that for your records and If it demonstrates a tune enjoy the "free tune" under warranty!!
Last edited by PeterUbers; Apr 19, 2018 at 10:12 PM.
Yes those are wheel HP numbers. And I thought they would be lower.
He also tunes cars for the Pikes Peak Hillclimb. Planning to get a Kleeman tune here...
My guess is that you are in Denver or similar high elevation in CO. If so your son-in-law let the dyno add a correction factor that isn't applicable to a modern turbo engine. Ask him for the uncorrected dyno numbers, they will be much lower and more accurate.
many times sellers don't disclose tuning to the ecu and you can pop the edu and check to see if it has a drill hole on it's bottom ... my understanding is that drilling the ecu bottom plate is a requirement to tune the m157
you can also have a tuner look at the ecu to determine if it's got an oem tune or aftermarket tune
I got the Kleemann tune about 2 months ago. Car runs great. Just completed a 1800 mile trip and it was flawless. Best road car I have ever owned. 12 hours in the saddle and I was not even tired. Very fun car on the wide open roads between Colorado and Montana.
Finally dynoed the car again after the tune. Picked up a lot of low end torque, not much above 5500 though. Seems turbos are pretty tapped out at higher RPM. But mid range torque is amazing. Yes these are corrected numbers to sea level based on an altitude of 5900 ft. Uncorrected numbers after tune are 501 rwhp and 656 rwtq. Tune cost $2200. If I used the sea level numbers and then added in Renntech's generous 17% drivetrain loss, the crank numbers would be 737 crank hp and 965 crank tq. For comparison, the original factory numbers are included so you can see the difference between stock and tuned. The dyno operator slowly opened the throttle until full throttle at 3500 rpm. May have made more torque down low but a sudden dramatic increase in torque is pretty hard on the car and dyno.
Last edited by inastrangeland; Jul 6, 2018 at 01:58 PM.
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