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      09-12-2016, 10:36 PM   #23
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I have to really short shift the car from 1st to 2nd to keep it smooth. The other gears feel fine though. I really think it behaves better when you are a little aggressive. I don't think the MT likes to be treated gingerly.

My side question is about cutting the car off. Am I the only one that feels the car turns off very rough?
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      09-13-2016, 07:55 AM   #24
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Quote:
Originally Posted by wolverine M4 View Post
I am at 2700 miles and yes its moody depending on temp and nanny systems. But I just did an autocross day on Sunday and it feels like I was using an adaptive transmission like the DCT this morning the shifts where perfect. Does it has adaptive memory or it is just a result from the manhandling of the weekend? Any guys that have track experience have the same results?
My 6MT feels butter smooth after driving the car hard for a few mins. When i did autocross, it felt the smoothest it's ever been. Although, it does not retain the same characteristics the next day like in your case. In my case, it's only smooth during the driving session.
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      09-13-2016, 09:37 AM   #25
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I'm not sure what the drivers in this thread are using as a comparison benchmark to determine "butter smooth". I have a C3 Corvette 4 speed 350 and I can tell you this transmission is like liquid lightning compared to that. It's probably the best MT I have ever owned and that's covering a 30+ year span of nothing but MTs
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      09-13-2016, 09:46 AM   #26
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There are too many factors that play into the "mood" of the 6MT. Outside temperature, internal temperature (gears, fluid, etc.), milage/wear, build tolerance, etc. The transmission in my ZCP feels different than my non-ZCP M3. Not necessarily smoother, because they both feel great. Maybe just a little more crisp between shifts. There is about 7k milage difference between the two vehicles.
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      10-24-2016, 04:31 AM   #27
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Quote:
Originally Posted by Nothing View Post
I have to really short shift the car from 1st to 2nd to keep it smooth. The other gears feel fine though. I really think it behaves better when you are a little aggressive. I don't think the MT likes to be treated gingerly.

My side question is about cutting the car off. Am I the only one that feels the car turns off very rough?
I agree with you, the car feels more smooth when you drive more aggressive
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      10-24-2016, 04:33 AM   #28
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Quote:
Originally Posted by Ultimate Driving Giraffe View Post
I've noticed this as well, and it is almost always relatively hot and humid where I live. The car being warm makes a big difference, both in smoothness of the engine and the gear lever. The car also like being revved far more than lugged; I cannot imagine driving in the computer's suggested gears -- obviously mileage motivated -- because the engine simply would be lugging all the time. Then the car has less pop than a Honda Civic and sounds rougher and generally less happy. Keep the revs higher, though, and the thing seems just all around smoother (and happier).
Yup I found out that too, gotta keep high rev (above 3k rpm) and the car seems more smoother
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      10-24-2016, 06:51 AM   #29
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Quote:
Originally Posted by lippy View Post
Gear oil thins as it heats. That's it. The engine performs differently based on temperature. Colder air is denser and contains more oxygen, and adaptive engines can adjust by mixing more fuel to take advantage of this to make more power.
It's actually the other way around. Older "non-adaptive" engines would make more power with denser air, since their systems would "naturally" adapt. That what a mass air flow sensors is all about. Even good old carburetors would do that by design.

Modern FI engines do the opposite and compensate (up to a certain extent) for lower density air by increasing boost to maintain rated power in varying conditions. Another way of putting it, is that they limit power in good conditions to keep thermodynamic reserve for poorer conditions. Piggy back tunes simply tap into that reserve.

Quite interestingly, I have achieved my highest top speed with my M4 at my local track on relatively hot and humid day. It was the total opposite with my E92 M3.

That being said, with higher boost and hotter air, the S55 will be a bit more laggy and less responsive even if it makes similar power.
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Last edited by CanAutM3; 10-24-2016 at 07:31 AM..
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      10-24-2016, 03:11 PM   #30
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Mine is fine.
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      10-24-2016, 04:00 PM   #31
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As I mentioned in other post about MT you either drive hard or drive really "normal" and it will be smooth. Try to be just a little aggressive and it won't be smooth
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