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      11-21-2021, 01:30 PM   #13
DrivenAgain
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Drives: 2018 BMW M5
Join Date: Dec 2020
Location: MD

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Originally Posted by mkw110 View Post
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Originally Posted by DrivenAgain View Post
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Originally Posted by mkw110 View Post
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This is called lugging, do not do it. Do not try to make boost at that low of an RPM with that high of a gear. This scenario is how the majority of rods are bent on this platform. Our cars have HUGE turbos and they are meant to spool up much higher in the RPM range. If you feel the car start to lug, downshift with your paddle.
When I put he gearbox logic in the level one , it will automatically doing this kind of action . So should I drive in level two?
Yes level 1 will make the transmission sluggish, level 2 is better for daily driving and will force more downshifts, that initial boost hit before the downshift is what you want to avoid, u can hear it like the engine is struggling and won't downshift
It make sense. Is this " lugging " action happens in your car too?
Yes they all do it. Another scenario is shifting to control your speed in manual, and forgetting to go back to Auto. Like forgetting your in manual gear 7 at 1500rom then floor it at low speed, also not a good situation.
One question: I am not flooring it like to have a hard push in a low rpm and low gear. I just foot on the accelerator very little , then the car begins to boost leak and give me a feeling like " lugging"
It's not leaking boost although it sounds like it, that's the sound of the the "lugging" and it's most noticeable at part throttle, full throttle would cause a downshift.
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