Dyno the GLC

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Jul 5, 2020 | 06:57 PM
  #1  
Hello All,

Many of y’all know me for the build. Decided to take it to a random dyno event and still encounter the same problem.

For some reason my GLC hates being on a dyno ... it’s constantly cutting power for no reason. Has anyone dynoed theirs ?

I have placed in Dyno mode of course.

The car only gives us a full pull whenever it feels like.

attached is today’s dyno ...It was 97 degrees out and power cut at 4500rpm leaving 2500 on the table .. and that truly is where this car shines at this point. Hit 598awhp and we all think on a 70 degree day and a full pull it’s got at least 100whp more.

Odd because as soon as it got off the dyno I got on the highway and did a full pull through 160mph and no issues.

Anybody know ? Going to talk with Jerry from Eurocharged.

Dyno guy thinks it isn’t sensing airflow and cutting, others think good open ... a total mystery.

King


Reply 1
Jul 6, 2020 | 12:19 AM
  #2  
hairy *** legs. That is impressive and expected from you. too bad about the power cut. I head annoying power cut while doing AutoX but that was most definitely related to the steering angle I was trying to leave on. hopefully, Eurocharged can figure it out so you get real numbers.
I still want the taste of real power myself but the way I dog this car, it needs to be 100% reliable for daily drive. Knowing how easy I reach 170mph in men, I can only imagine in yours.
Reply 0
Jul 6, 2020 | 07:51 AM
  #3  
Quote: hairy *** legs. That is impressive and expected from you. too bad about the power cut. I head annoying power cut while doing AutoX but that was most definitely related to the steering angle I was trying to leave on. hopefully, Eurocharged can figure it out so you get real numbers.
I still want the taste of real power myself but the way I dog this car, it needs to be 100% reliable for daily drive. Knowing how easy I reach 170mph in men, I can only imagine in yours.
Exactly. I absolutely beat the **** out of my cars. (Drive them how they're meant to be driven)
I wanted to do the turbo upgrade like OP, but with the little problems I've already had with the tune alone.. not sure!
Reply 0
Jul 6, 2020 | 08:52 PM
  #4  
I'm new here. What modifications do you have?

I'm planning on running mines on the dyno stock to get a baseline after my break in. A good friend of mines owns a shop with a 4WD mustangdyne
Reply 0
Jul 6, 2020 | 10:57 PM
  #5  
King mines been dynoed I'm in aus though.

msg allen from international autohaus he may be able to help you.
Reply 0
Mar 20, 2021 | 05:10 PM
  #6  
My stock 2019 GLC63 just dynoed today at 420WHP. If you figure the 18% powertrain loss these vehicles average, that is 495HP at the crank, which beats AMG's "literature" by 26HP. Using that formula, that means the stock torque number is 504ft/lb.

Getting a tune, so next week, we shall have higher numbers!
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