M40i Pops and Crackles

dominicm

New member
Had mine 4 months, enjoying it and zero problems so far. Spare time between Christmas and New Year so used my GoPro 7 from multiple onboard angles to put a vid together with a focus on sound. Intending to take mine on a skid pan at Thruxton for some sideways action soon.

[youtube]yByWFKRt1uQ[/youtube]
 
Nicely made video ! It sounds decent! It’s often difficult to tell from a video, but have they managed a nice bit of rasp out of the exhaust note ? It doesn’t seem to sound as muted as a lot of the current turbos.
 
The disappointing and frustrating thing about modern auto, especially turbo cars obviously, is the lack of any drama on upshifts, all you get a is muted ‘Fluff’ on every change. The E89 35is will give a decent crack at approx over 4250k revs in comfort in manual shifting, it won’t do it in sport however or much over 5k revs so a very narrow window.... :( Even with mega bucks quality aftermarket exhausts you don't get any grin inducing cracks etc, upshifting, just a louder ‘Fluff’... :roll:

1st world problems admittedly but still, some bangs would be nice.
 
Nice video which has captured the exhaust crackles and pops very well :thumbsup: . I love the sound that my exhaust makes, and I think that BMW have done a good job considering all the crap that they have to stuff in the boxes to comply with EU emissions, however as a comparison I find the Z4's exhaust very muffled when compared to the M Sport exhaust which was fitted to my M240i.
 
john-e89 said:
The E89 35is will give a decent crack at approx over 4250k revs in comfort in manual shifting, it won’t do it in sport however or much over 5k revs so a very narrow window.... :( Even with mega bucks quality aftermarket exhausts you don't get any grin inducing cracks etc, upshifting, just a louder ‘Fluff’... :roll:
Interesting - my 35i does this in 'normal' drive as well, doesn't need to be in manual shift. Usually heard when cold, but not easily reproducible. Gave me a heck of a fright the first time, thought I'd broken something :lol:
OP - thanks for the video :thumbsup:
 
enzed4 said:
john-e89 said:
The E89 35is will give a decent crack at approx over 4250k revs in comfort in manual shifting, it won’t do it in sport however or much over 5k revs so a very narrow window.... :( Even with mega bucks quality aftermarket exhausts you don't get any grin inducing cracks etc, upshifting, just a louder ‘Fluff’... :roll:
Interesting - my 35i does this in 'normal' drive as well, doesn't need to be in manual shift. Usually heard when cold, but not easily reproducible. Gave me a heck of a fright the first time, thought I'd broken something :lol:
OP - thanks for the video :thumbsup:

It does to an extent yes IF you can get it to upshift at the right moment, not easy in auto, in manual you can hold off a shift until the right time obviously but anyhoo, it’s a small window isn’t it and only in comfort mode, not ideal by any means..... :(

Maybe it just needs 600bhp and anti lag........ :lol: :evil:
 
john-e89 said:
The disappointing and frustrating thing about modern auto, especially turbo cars obviously, is the lack of any drama on upshifts, all you get a is muted ‘Fluff’ on every change. The E89 35is will give a decent crack at approx over 4250k revs in comfort in manual shifting, it won’t do it in sport however or much over 5k revs so a very narrow window.... :( Even with mega bucks quality aftermarket exhausts you don't get any grin inducing cracks etc, upshifting, just a louder ‘Fluff’... :roll:

1st world problems admittedly but still, some bangs would be nice.
Me being a sensible driver doesn't need any pops and cracks to have fun :poke: :rofl:
 
Jollyjoiner said:
john-e89 said:
The disappointing and frustrating thing about modern auto, especially turbo cars obviously, is the lack of any drama on upshifts, all you get a is muted ‘Fluff’ on every change. The E89 35is will give a decent crack at approx over 4250k revs in comfort in manual shifting, it won’t do it in sport however or much over 5k revs so a very narrow window.... :( Even with mega bucks quality aftermarket exhausts you don't get any grin inducing cracks etc, upshifting, just a louder ‘Fluff’... :roll:

1st world problems admittedly but still, some bangs would be nice.
Me being a sensible driver doesn't need any pops and cracks to have fun :poke: :rofl:

Apparently Calow is having a whip round for a gold watch you’ve been there so often Nige.... :poke:
 

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john-e89 said:
Jollyjoiner said:
john-e89 said:
The disappointing and frustrating thing about modern auto, especially turbo cars obviously, is the lack of any drama on upshifts, all you get a is muted ‘Fluff’ on every change. The E89 35is will give a decent crack at approx over 4250k revs in comfort in manual shifting, it won’t do it in sport however or much over 5k revs so a very narrow window.... :( Even with mega bucks quality aftermarket exhausts you don't get any grin inducing cracks etc, upshifting, just a louder ‘Fluff’... :roll:

1st world problems admittedly but still, some bangs would be nice.
Me being a sensible driver doesn't need any pops and cracks to have fun :poke: :rofl:

Apparently Calow is having a whip round for a gold watch you’ve been there so often Nige.... :poke:

Hahahaha I like that one, top marks matey :thumbsup:
 
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