While I understand it is nice to see the max power our cars are making, wouldn't it make sense to also make a run on the dyno in normal mode to see what your car is doing in the mode it is in most of the time?

If mammary serves me, I ran a 380hp in normal mode, and 409hp in dyno mode (can't remember the dyno type but about 2 months later, I had a 451hp in dyno mode on a Mustang dyno...pfftt.). So, a significant difference in horsepower in the mode that I am in 99% of the time.

 

It's not possible to dyno in normal mode. Even with ESP off, if the car detects the rear wheels spinning and the fronts stationary it will still put on the brakes.

-m

 

Exactly...which is why they have dyno mode.

 

So the reason I had a lower horsepower number was because the brakes were being applied? Is the number we dyno with in dyno mode the actual number we are driving around with at the rear wheels on the street?

 

Yes. Nothing special is going on in dyno mode. Just all safety functions are shut down. ESP ABS etc.

 

I don't know why you had less HP, but it would not be possible at all to dyno with Dyno Mode off, unless you were running some kind of road simulation on the dyno.

As far as the #s being the same, yes they are. Dyno mode does not give you more HP, or provide a more aggressive tune, it's just disabling safety features to allow you to dyno, hence it being called "Dyno Mode"

-m

 

Thanks for the clarification everyone.

I did, however, just drive my car right on to the dyno and run it without putting it in dyno mode. So I guess that is why I was under the impression somehow Mercedes had dyno mode as a means to really turn any electronic disabling device off to allow minimum drivetrain loss when on the dyno.

 

Bet those brakes were just SCORCHING hot after that run. (ECU applies brakes when sensing spin) WOW.

Surprised like most of us that it didn't really shut you down cold.

When against massive "wheel spin" like your ECU was seeing, it should have shut that butterfly on the TB down tight.

Weird.

 

Yeah, maybe when I get home sometime tomorrow (I'm in LA at the moment), I'll dig up the dyno and post it and maybe y'all can look at it and say "yep, see right there, your engine about to blow up" or some such!

 

They are all AMG secret agents@! dont listen to them Dyno mode is like god mode on duke nukem. its the schnitzel of powa!!!

Warning never try full power on normal roads as you will most likely go side ways & wont have the safety stuff to keep you in check!

 

Does anyone know if the recently messed with dyno mode?

The car was at the dealer, and now when i put it in dyno mode, the ESP active handling part stays on... traction control still shuts off.

 

That's what I hate about going to the dealer sometimes they "sneak" in things which are probably normal updates (but ones I never said OK do that) but they always seem to not let me know OR put it in such cryptic terminology on the invoice statement that I have no idea what they did.

Even now I still have about 2 months on my factory warranty and I have service message on and I'm afraid to take it over there...I'm afraid they will do more harm than good, esp. with the ECU. I may be paranoid but I have no assurance that it won't happen EVEN if I tell my SA.

 

I thought DynoJet numbers were ALWAYS higher than Mustang numbers (which tend to be more "real-world on the street hp/tq")
That's the only two types correct?

 

Yeah, ok.

Run three was NOT in dyno mode. Notice the difference in power. I'm guessing y'all are right about there shouldn't be a difference, but empirically, I can't discount what I saw with my own eyes.

Run 1 = 407.44HP 437.44TQ
Run 2 = 399.54HP 442.20TQ
Run 3 = 379.64HP 443.69TQ

Hmm? Could this be heat soak? I wonder as I look at this...anyway, the car ran on the dyno in normal mode, even though I guess it shouldn't have. I assumed the difference was the mode, but I guess it could be heat soak.

Well, I can't seem to upload my photo so I'll have to figure that out later since that website I used to use doesn't seem to exist anymore.

And this is a moot point...VR550 installed and just got home...I'll post up what I gots!

 

Welcome to the club... details?

 

Well, I'm about to head out to meet some buddies out in Chandler...but, I'll just say mine should be called VR572! Needless to say, I'm very pleased with the results and I certainly exercised the new horses on the way home from LA! Will post more later!

 

Good deal....
Soup I replied to your question in MJ's mod fever thread.......

 

Can some one let me know if the ESP warning light stays on in dyno mode. Its pissing me off. I can't believe there is no way to shut the system completely off.

I wonder if its new because of the Porsche gt lawsuit.

Thanks.

 

Well im not sure about in the 55, but in my 63 several things happen when I engage Dyno mode.
I get a warning saying EBV, ABS and ESP or disable/inoperative
Second msg to come up says Speedtronic is disabled.
Yes my ESP light stays on. When I hit ESP button while in this mod it has no effect.

I know im a newb and all, but can someone tell me what the EBV is? Also when it says speedtronic disabled how does that effect the car. I must not totally understand what that is because I thought that would mean I couldnt manually shift. WHen I try it does allow me to shift as all settings were before Dyno mode. So what does it mean?

 

electronic brake force distribution (EBV) .. i'd assume it has something to do with easing off brakes if w wheel is slipping under braking.. kind of like individual ABS.. but its just a guess.

Speedtronic is the proximity sensor for the autospacing cruise control.

go out and see if you can drift the car (if you're confident with your skills).. does the ESP still kick in?

so annoying.

ryan

 

How do you turn Dyno mode on? I've never even heard of this.

 

I need to know this as well...... I forgot the steps and am going for a dyno run in a few days.....

 

http://video.google.com/videoplay?do...25461408988527

 

Thank you so much! Going tomorrow............