Help: Low Dyno Results
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From: Gdynia, Poland
'08 C63 Estate
Help: Low Dyno Results
About a month ago I dyno'd my car and was dissapointed with the results to say the least.
The runs were done on an intertia dyno (I'm not sure if its the right name for it)
Any ideas what could be the cause?
I am planning to finally do a tune this winter and would like to sort things out beforehand.
Thanks in advance
RWHP:
The runs were done on an intertia dyno (I'm not sure if its the right name for it)
Any ideas what could be the cause?
I am planning to finally do a tune this winter and would like to sort things out beforehand.
Thanks in advance
RWHP:
Last edited by olszowa12; Oct 26, 2012 at 01:30 PM.
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From: PNW
'15 VW GTI
well...to start with, is the car completely stock? what size rims/tires? type gas? temp/humidity? how many fans?
also, help us out by converting to whp/tq, not sure which numbers to use from your chart..
also, help us out by converting to whp/tq, not sure which numbers to use from your chart..
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From: Gdynia, Poland
'08 C63 Estate
Temp was about 20*C / 68*F
One fan.
I edited my first post - shows WHP, temperature and torque.
Last edited by olszowa12; Oct 26, 2012 at 01:31 PM.
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From: PNW
'15 VW GTI
I wouldn't be too worried, especially if the car drives OK. That dyno could be like a low reading mustang dyno. I mean low compared to a dyno jet. So a dyno jet might read 360 whp for a stock c63, and a mustang dyno could read 330....or sometimes higher.
Go back for some more runs to see if it's consistent. Any other 63s use that dyno? And when you get your tune, go back again. If you have a good delta, then that's all that matters, provided the car is running right.
Go back for some more runs to see if it's consistent. Any other 63s use that dyno? And when you get your tune, go back again. If you have a good delta, then that's all that matters, provided the car is running right.
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From: Gdynia, Poland
'08 C63 Estate
I wouldn't be too worried, especially if the car drives OK. That dyno could be like a low reading mustang dyno. I mean low compared to a dyno jet. So a dyno jet might read 360 whp for a stock c63, and a mustang dyno could read 330....or sometimes higher.
Go back for some more runs to see if it's consistent. Any other 63s use that dyno? And when you get your tune, go back again. If you have a good delta, then that's all that matters, provided the car is running right.
Go back for some more runs to see if it's consistent. Any other 63s use that dyno? And when you get your tune, go back again. If you have a good delta, then that's all that matters, provided the car is running right.
I know about the mustang dyno but the guy at the shop told me that the readings here are usually accurate and that 30 horses getting lost is not normal.
It seems to me that the car is running fine but it's difficult to notice the difference (-30whp) when I drive the car all the time and most of the time in the city.
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Vivid Racing '09 C63 AMG
Cars can "lose" 15-20% hp on a dyno compared to engine output. It's just the nature of inefficiency to the wheels. That and all dynos read differently, as was already pointed out.
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From: Northport N.Y.
2013 f250 6.7 diesel
I don't know any other C63s in my area so I can't compare my results.
I know about the mustang dyno but the guy at the shop told me that the readings here are usually accurate and that 30 horses getting lost is not normal.
It seems to me that the car is running fine but it's difficult to notice the difference (-30whp) when I drive the car all the time and most of the time in the city.
I know about the mustang dyno but the guy at the shop told me that the readings here are usually accurate and that 30 horses getting lost is not normal.
It seems to me that the car is running fine but it's difficult to notice the difference (-30whp) when I drive the car all the time and most of the time in the city.
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From: Texas
2011 P31 C63 2015 CLA45
When I did my dyno, I stomped it all the way there through every light, and didn't take shortcuts. From first to fourth run 377whp/329tq to 406whp/354tq. Each run the car got more hp. After 4th run it was getting too hot so I stopped there. Sometimes you need to re adapt the ecu.
P.S. My tires were almost bald.
P.S. My tires were almost bald.
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From: Denver
C63
Those numbers look correct. This type of dyno reads lower than a dynojet. It could have calibration issues or some other issues...dont know.
just make sure you put it on the same dyno after the tune. to see the gains
one other question, whi is the graph sloping at low RPM, were your tires slipping?
just make sure you put it on the same dyno after the tune. to see the gains
one other question, whi is the graph sloping at low RPM, were your tires slipping?
Last edited by M156Beast; Oct 27, 2012 at 02:15 AM.
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From: Gdynia, Poland
'08 C63 Estate
I will beat the 5h!t out of my car before the next dyno.
The tires were not slipping.
To be honest I am usually very skeptical about the skills of such workshops in Poland but every petrolhead I know advised me to use this dyno.
In which gear should we do the runs?
4th or 5th ?
Prindone:
The car has 146'ooo km.
The dyno showed 420PS.
The tires were not slipping.
To be honest I am usually very skeptical about the skills of such workshops in Poland but every petrolhead I know advised me to use this dyno.
In which gear should we do the runs?
4th or 5th ?
Prindone:
The car has 146'ooo km.
The dyno showed 420PS.
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From: Denver
C63
I will beat the 5h!t out of my car before the next dyno.
The tires were not slipping.
To be honest I am usually very skeptical about the skills of such workshops in Poland but every petrolhead I know advised me to use this dyno.
In which gear should we do the runs?
4th or 5th ?
Prindone:
The car has 146'ooo km.
The dyno showed 420PS.
The tires were not slipping.
To be honest I am usually very skeptical about the skills of such workshops in Poland but every petrolhead I know advised me to use this dyno.
In which gear should we do the runs?
4th or 5th ?
Prindone:
The car has 146'ooo km.
The dyno showed 420PS.
Do the runs in 4th gear.
When you take it next time set your rear tire pressures @ 36-38PSI
Dont forget to set your C63 on Dyno Mode from your interior commands, do you know how to do that?, did you do it on your last dyno run?
Thread Starter
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From: Gdynia, Poland
'08 C63 Estate
I'll try in 4th gear next time- last time we did the runs in 5th gear.
The tire pressure was 40PSI.
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From: Vancouver
2018 e63s edition 1
As in the tranny getting all slugish from the city driving? Is there anyway to reset it? I noticed in the e55 section there was a way to reset the learning/adaptions and some of those guys seem to do so, every couple days.
edit: nevermind...
https://mbworld.org/forums/c63-amg-w...ep-method.html
edit: nevermind...
https://mbworld.org/forums/c63-amg-w...ep-method.html
Last edited by ShaneN.; Oct 27, 2012 at 09:17 AM.
Thread Starter
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From: Gdynia, Poland
'08 C63 Estate
Thanks for all the input
Anyone tried this?
As in the tranny getting all slugish from the city driving? Is there anyway to reset it? I noticed in the e55 section there was a way to reset the learning/adaptions and some of those guys seem to do so, every couple days.
edit: nevermind...
https://mbworld.org/forums/c63-amg-w...ep-method.html
edit: nevermind...
https://mbworld.org/forums/c63-amg-w...ep-method.html
Anyone tried this?
MBWorld Fanatic!
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From: Texas
2011 P31 C63 2015 CLA45
Yea, run it in 4th. Run it hard before you get there. Try to get 3-4 runs or until it gets really hot.
P.S. I'm a big fan of your estate. The drop and front is *******g sick.
P.S. I'm a big fan of your estate. The drop and front is *******g sick.
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From: Luxembourg beach
C63 AMG
I will beat the 5h!t out of my car before the next dyno.
The tires were not slipping.
To be honest I am usually very skeptical about the skills of such workshops in Poland but every petrolhead I know advised me to use this dyno.
In which gear should we do the runs?
4th or 5th ?
Prindone:
The car has 146'ooo km.
The dyno showed 420PS.
The tires were not slipping.
To be honest I am usually very skeptical about the skills of such workshops in Poland but every petrolhead I know advised me to use this dyno.
In which gear should we do the runs?
4th or 5th ?
Prindone:
The car has 146'ooo km.
The dyno showed 420PS.
I Could tell you that it can be possible, mine too was about this power before i tune m'y ecu.
This Is normal m'y Audi RS4 B7 was about 370 instead of 420ps because of the oil circulation tank that Is a big problem on this car.
The car is Never about the power the manufactur say, just the GTR pass the power that Nissan say they have original!
(and If they say this its just for the law like this not too much taxes in Europe)Dyno mode??? Could someone explain more about it, im interested?
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C63 AMG
A number of us. I felt no difference. IIRC an MB tech later confirmed it doesn't work for the C63. I have a Dinan M5 and was told to do five full-throttle runs to redline through a few gears (safely) to reset to more aggressive adaptations. Seems logical...
Last edited by bhamg; Oct 27, 2012 at 01:05 PM.
Thread Starter
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From: Gdynia, Poland
'08 C63 Estate
I Could tell you that it can be possible, mine too was about this power before i tune m'y ecu.
This Is normal m'y Audi RS4 B7 was about 370 instead of 420ps because of the oil circulation tank that Is a big problem on this car.
Dyno mode??? Could someone explain more about it, im interested?
This Is normal m'y Audi RS4 B7 was about 370 instead of 420ps because of the oil circulation tank that Is a big problem on this car.
Dyno mode??? Could someone explain more about it, im interested?
Here is how You get into dyno mode:
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2012 C63;1971 280SE 3.5(Sold);2023 EQS 450 SUV 4 Matic (Wife's)
If you dyno in 5th and do not have a tune or the speed limiter raised you run into the speed limiter at 155 mph before you reach max revs. Therefore your max hp will be low because of the lower revs. Otherwise 5th is 1:1 and is supposed to be the correct gear to dyno in.
