N55 Stutter/Hesitation at full throttle while racing. Video attached.

WesamJaber · 07-27-2025, 12:27 PM

What’s up guys, so I was having fun while in Mexico and I noticed in the middle of my race, my car had a slight hesitation or a stutter. The best way I can describe it is for a half second, it cut power and created a jolt/bog in the driveline. I will attach a video to this to show the run and I want to see what you all think of this. You can hear the jolt and notice it when I go above 80 mph. What do you all think of this?

The car runs great except that little issue that happens everytime im in high load high speed situations like this.

Vehicle: 2011 535i, tuned on mhd stage 2+ and stage 2 xhp. FBO.

By the way, the car I raced was a stage 2 EWG f10 n55 for those who may wonder lol. PWG got some power still‼️

Video

DementedF10 · 07-31-2025, 12:50 PM

I have had the same thing with my car as well. From what I have gathered is the main issue is the PWG cars arent able to control boost as well as the EWG. So its overboosting and the cars ECU then cuts it to protect the motor. I noticed this was happening when I replaced my BOV and could hear it letting off the throttle while i had it pinned. Checked MHD log and sure enough it was overboosting at that time and would close the throttle and then resume. Not sure if anyone has found a way around it. Mine was getting so bad it would throw it into limp mode and I would lose all boost untill i pulled over and reset.

07-27-2025, 12:27 PM	#1
WesamJaber Private First Class 124 Rep 128 Posts Drives: Bmw 535i Join Date: Jun 2023 Location: NJ iTrader: (0) Garage List 2011 bmw 535i f10 [8.25]	N55 Stutter/Hesitation at full throttle while racing. Video attached. What’s up guys, so I was having fun while in Mexico and I noticed in the middle of my race, my car had a slight hesitation or a stutter. The best way I can describe it is for a half second, it cut power and created a jolt/bog in the driveline. I will attach a video to this to show the run and I want to see what you all think of this. You can hear the jolt and notice it when I go above 80 mph. What do you all think of this? The car runs great except that little issue that happens everytime im in high load high speed situations like this. Vehicle: 2011 535i, tuned on mhd stage 2+ and stage 2 xhp. FBO. By the way, the car I raced was a stage 2 EWG f10 n55 for those who may wonder lol. PWG got some power still‼️ Video Last edited by WesamJaber; 07-27-2025 at 12:28 PM..
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07-31-2025, 12:50 PM	#2
DementedF10 Private First Class 234 Rep 164 Posts Drives: 2012 BMW 535ix Join Date: Dec 2022 Location: Ohio iTrader: (0)	I have had the same thing with my car as well. From what I have gathered is the main issue is the PWG cars arent able to control boost as well as the EWG. So its overboosting and the cars ECU then cuts it to protect the motor. I noticed this was happening when I replaced my BOV and could hear it letting off the throttle while i had it pinned. Checked MHD log and sure enough it was overboosting at that time and would close the throttle and then resume. Not sure if anyone has found a way around it. Mine was getting so bad it would throw it into limp mode and I would lose all boost untill i pulled over and reset.
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