Went to Dyno My C63BS and got 289hp?
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Joined: Aug 2009
Posts: 897
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From: Parkland FL
C63 BS, 2011 SLS, 2014 CLS63-S
Went to Dyno My C63BS and got 289hp?
Hey Guys,
So I went to dyno my car today and ran into an issue. They hooked my car up and ran 1 pull and came over to me asking if there is a special way to dyno this car as the peak HP was 280. I explained that we can put it into Dyno mode and go from there. The tech googled c63 dyno mode, put the car in Dyno Mode (we think) and the result was 289hp
He said the car felt really slow to gain rpm's as if it really did have only 289hp. Puzzled, I sat in the drivers seat and saw this come up on the dash and would not go away (see pic) the tech then drove the car and said the light stayed on for about 100 yards and then went back to normal. I vboxed the car (while raining) and the car pulled a 4.3 to 60 which confirms the car does have more than 290hp. So what happened during my dyno??? Any thoughts?
So I went to dyno my car today and ran into an issue. They hooked my car up and ran 1 pull and came over to me asking if there is a special way to dyno this car as the peak HP was 280. I explained that we can put it into Dyno mode and go from there. The tech googled c63 dyno mode, put the car in Dyno Mode (we think) and the result was 289hp
He said the car felt really slow to gain rpm's as if it really did have only 289hp. Puzzled, I sat in the drivers seat and saw this come up on the dash and would not go away (see pic) the tech then drove the car and said the light stayed on for about 100 yards and then went back to normal. I vboxed the car (while raining) and the car pulled a 4.3 to 60 which confirms the car does have more than 290hp. So what happened during my dyno??? Any thoughts?
Thread Starter
Super Member
Joined: Aug 2009
Posts: 897
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From: Parkland FL
C63 BS, 2011 SLS, 2014 CLS63-S
So what do you think happened? My car does appear to have serious power as verified by my v-box. I mean a 289whp car shouldn't be running 4.3 to 60 in the rain. I'm just trying to figure out why my car was having trouble on the dyno? Limp Mode? IDK.
Thread Starter
Super Member
Joined: Aug 2009
Posts: 897
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From: Parkland FL
C63 BS, 2011 SLS, 2014 CLS63-S
I was driving the car all day running errands. It was 90 degrees out and very humid, but it should dyno for much more even in these conditions.
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From: THE Orange County, California
2024 C8 Z06- 2025 BMW CS- 2022 Porsche 992 GTS
your car appears to be fine if you pulled a 4.3 in the rain.... I think when i first had my car dyno'd it pulled like 340 hp or around there because the operator didnt put in dyno mode...
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From: On a oil lease cracking rock to recover glorious sour oil
Modded 2010 Harley Edition F-450 and a '13 S5
Dynos are irreverent. Tuning tool only to compare pre and post mod and to dial in a set up. Ive seen 700whp+ vehicles barely break 400
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From: THE Orange County, California
2024 C8 Z06- 2025 BMW CS- 2022 Porsche 992 GTS
For me dynos are meaningful in the tuning world for perspective in gains before and after. They are in no means absolute measurements that will be backed up on the street though... The street is the best dyno.
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From: NA
Yes
Still way low but I experienced significant jumps after each pull bc the car was not driven hard at all for weeks prior. I was surprised, my point is maybe there is truth to the whole ecu learning thing after all.
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From: Metro Detroit
2014 C63 AMG 507 sedan
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Joined: Aug 2009
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From: Parkland FL
C63 BS, 2011 SLS, 2014 CLS63-S
Thanks guys, I appreciate the help. I'm going to re-dyno at another location at some point. The car is running strong as I ran a couple v-box runs again today just to ease my mind and got consistent 4.1's to 60 with serious wheel spin. I was just concerned about the light on the dash during dyno operation and the sluggish feel the tech experienced.
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Joined: Feb 2005
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Hey Guys,
So I went to dyno my car today and ran into an issue. They hooked my car up and ran 1 pull and came over to me asking if there is a special way to dyno this car as the peak HP was 280. I explained that we can put it into Dyno mode and go from there. The tech googled c63 dyno mode, put the car in Dyno Mode (we think) and the result was 289hp He said the car felt really slow to gain rpm's as if it really did have only 289hp. Puzzled, I sat in the drivers seat and saw this come up on the dash and would not go away (see pic) the tech then drove the car and said the light stayed on for about 100 yards and then went back to normal. I vboxed the car (while raining) and the car pulled a 4.3 to 60 which confirms the car does have more than 290hp. So what happened during my dyno??? Any thoughts?
So I went to dyno my car today and ran into an issue. They hooked my car up and ran 1 pull and came over to me asking if there is a special way to dyno this car as the peak HP was 280. I explained that we can put it into Dyno mode and go from there. The tech googled c63 dyno mode, put the car in Dyno Mode (we think) and the result was 289hp
He said the car felt really slow to gain rpm's as if it really did have only 289hp. Puzzled, I sat in the drivers seat and saw this come up on the dash and would not go away (see pic) the tech then drove the car and said the light stayed on for about 100 yards and then went back to normal. I vboxed the car (while raining) and the car pulled a 4.3 to 60 which confirms the car does have more than 290hp. So what happened during my dyno??? Any thoughts?
Super Member
Joined: Feb 2012
Posts: 620
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From: Sacramento, CA
'09 C63
Thanks guys, I appreciate the help. I'm going to re-dyno at another location at some point. The car is running strong as I ran a couple v-box runs again today just to ease my mind and got consistent 4.1's to 60 with serious wheel spin. I was just concerned about the light on the dash during dyno operation and the sluggish feel the tech experienced.
I experienced this error message when I was on an incline and decline. I had put the into park while at an angle and then put it back into drive; and the message came up. The car wouldn't accelerate and felt like it was in neutral. The second time it happened, I was pulling off a stop sign and the car felt extremely sluggish and I couldn't accelerate. I pulled over, turned off the car and back on...the car went nam to normal and the message disappear.
I explained it to my Indy MB tech and he explained it to me as a malfunction in the valve body in the transmission; something to do with the electronics.
I told this to the dealership because it was happening intermittently and quite more frequent. They checked it out for a week and said it was a problem with an air leak with the intake manifold.
I've had the car back for about a month now and no message/error yet. I could be wrong, but you may want to look into those two areas.
Thread Starter
Super Member
Joined: Aug 2009
Posts: 897
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From: Parkland FL
C63 BS, 2011 SLS, 2014 CLS63-S
I'm not familiar with the dyno part of your post, but I have some experience with the ABS & traction control brim inoperative message.
I experienced this error message when I was on an incline and decline. I had put the into park while at an angle and then put it back into drive; and the message came up. The car wouldn't accelerate and felt like it was in neutral. The second time it happened, I was pulling off a stop sign and the car felt extremely sluggish and I couldn't accelerate. I pulled over, turned off the car and back on...the car went nam to normal and the message disappear.
I explained it to my Indy MB tech and he explained it to me as a malfunction in the valve body in the transmission; something to do with the electronics.
I told this to the dealership because it was happening intermittently and quite more frequent. They checked it out for a week and said it was a problem with an air leak with the intake manifold.
I've had the car back for about a month now and no message/error yet. I could be wrong, but you may want to look into those two areas.
I experienced this error message when I was on an incline and decline. I had put the into park while at an angle and then put it back into drive; and the message came up. The car wouldn't accelerate and felt like it was in neutral. The second time it happened, I was pulling off a stop sign and the car felt extremely sluggish and I couldn't accelerate. I pulled over, turned off the car and back on...the car went nam to normal and the message disappear.
I explained it to my Indy MB tech and he explained it to me as a malfunction in the valve body in the transmission; something to do with the electronics.
I told this to the dealership because it was happening intermittently and quite more frequent. They checked it out for a week and said it was a problem with an air leak with the intake manifold.
I've had the car back for about a month now and no message/error yet. I could be wrong, but you may want to look into those two areas.
Senior Member
Joined: May 2011
Posts: 360
Likes: 0
From: Florida
2008 G55, 2012 C63 BS
I just got my C63 BS dyno(Mustang dyno), and the tech was having problems, couldn't dyno in 5th gear due to the speed limit(155mph) the car will stop before reaching 6000rpm, so he did a pull in 4th gear and the max HP was 435hp.
I'm planing some modification, but don't know if I should get the car dyno again in another place?
I'm planing some modification, but don't know if I should get the car dyno again in another place?
Last edited by G55AMG; May 6, 2013 at 01:26 PM.
Thread Starter
Super Member
Joined: Aug 2009
Posts: 897
Likes: 5
From: Parkland FL
C63 BS, 2011 SLS, 2014 CLS63-S
Member
Joined: Oct 2010
Posts: 174
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From: San Francisco, CA
2010 C63 AMG
I'd say one of the following:
1] Incorrect weight used for dyno resistance.
2] Dyno brake stuck.
3] C63 applying brakes because traction control was on. (if it's even possible to dyno with traction control on)
1] Incorrect weight used for dyno resistance.
2] Dyno brake stuck.
3] C63 applying brakes because traction control was on. (if it's even possible to dyno with traction control on)
Super Member
Joined: Jan 2010
Posts: 639
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From: SoCal, Orlando/Miami FL USA, Japan
2012 C63 AMG BS, 2010 DUCATI 1198S
I just got my C63 BS dyno(Mustang dyno), and the tech was having problems, couldn't dyno in 5th gear due to the speed limit(155mph) the car will stop before reaching 6000rpm, so he did a pull in 4th gear and the max HP was 435hp.
I'm planing some modification, but don't know if I should get the car dyno again in another place?
I'm planing some modification, but don't know if I should get the car dyno again in another place?
