stealthc63

So I got my K1 tune about a month ago and finally got my car on the dyno today. I have to say I was very disappointed with the numbers. I've seen other peoples results and compared to mine something is not right. Any feedback is greatly appreciated. My car is stock btw with approx 40,000 miles.

Thanks

solekeeper

360? Hm, sounds like something is off somewhere.. But doesn't a stock c63 put those kinds of numbers down?

Jim Brady

I'm confused, are the other dyno runs you posted other vehicles?

First rule of modding, run the baseline so you know where you started from. The dyno is only a number, how's your 60-120 times compared to a stock car?
That is far more telling than dyno numbers. Some dyno's are heart breakers others are not.

stealthc63

The two dyno graphs are the same...One pic just shows more of the page. The other pic is the air/fuel ratios. I didnt do a base dyno beforehand but I don't think in this case it matters. Considering nobody with a K1 tune is posting these kind of numbers. And if you look at the power curve it is very sloppy. Almost everyone else has a very smooth, linear curve. I should also note that the dyno was done with esp off and in manual mode in 5th gear.

HoozyerdaddyC63

Those do look like stock numbers. Have you taken it to the dealership or elsewhere for service since you had the tune?

IMO, I would ask for my money back and grab one of the handheld programmer tuners that are out now. You've got Eurocharged, OE Tuning and Velos Designworks as options right now.

Good luck and I hope this gets figured out for you.

khmergod

Looks like 381/360.

NovA_S

This is what Eurocharged did to my car. Follow the link bellow. Huge difference with stock.
https://mbworld.org/forums/c63-amg-w...rocharged.html

Mr. Happy

Get Cory involved. He will reflash it for free.

BFNYM156

Looks like A/F ratio is too rich

SLEPER

Agree. Too rich also.
Aren't most DYNOs pulls in 3rd gear anyway ??

BerBer63

Either your tune or your car is an underachiever, probably the tune. Tell them to set the smoothing to 5 so it's not so choppy, you will get more accurate results.

Mort

Dynos should preferably done in the gear with 1:1 ratio which is 5th gear in the C63. With stock ECU tunes a lot of people use 4th gear to get to the rev limit because in 5th gear the car runs into the speed limiter at 155 mph and just over 6000 rpm.

stealthc63

I sent Cory an email so I'm just waiting to hear back from him. I definitely agree that the car is running too rich. Which leads me to believe that it is the tune. Then again, I really dont have much experience with ecu tunes but with all the research I've done something definitely isn't right. I was expecting to see numers in the low 4's and from the looks of everyone else's K1 tunes I'm about 50 hp off.