About exhaust design. 

"Spanfeller is a twat" (theaspiringengineer) 10/11/2018 at 15:31 • Filed to: None

0

23

The new G20 has symmetrical exhaust tips in all configurable models it seems, except the M340i. I suppose it’s an aesthetic choice.

I think that the E90 and the F30 changed the way BMW used exhausts to differentiate their cars from a single tip in the 315i, two tips on one side for the 328i, and two pipes on either end for the 335i, up to two tips on each side for the M3. It made spotting up-badgers quite easy. But it was also kind of weird, the 335d was faster than the 335i but it had the more common two tips on one side rather than one tip per side.

I guess that with the new G20 they cared a little bit more for aesthetics (since in older models those engines did not need that exhaust configuration) with the normal models, since the M-sport model has the “ special” twin exhausts. I suppose the M3 is going to have quad exhausts as it has had since the E46.

I guess that, rather than judgmental , we should be thankful that they didn’t go full-kia and give a four cylinder car four exhaust pipes.

Sovande > Spanfeller is a twat 10/11/2018 at 15:42

0

I have a BMW exhaust question that maybe someone can answer. I was behind a someone in a loaner 540i (I think) that was likely new-ish (since it was a dealer loaner) which had two exhaust tips. The right tip appeared normal, but the left seemed to be closed off?  Is that the sport setting?  Or was I seeing things?  I was behind it for a bit and it looked to have a shiny plate (butterfly?) a few inches inside the tailpipe.

KingT- 60% of the time, it works every time > Spanfeller is a twat 10/11/2018 at 15:46

0

Honda and Toyota - Hold my beer and watch this

CompactLuxuryFan > Sovande 10/11/2018 at 15:47

1

The left tip has a flap that only opens up under high load. If you’re just idling or putting about one of the tips will have nothing coming out of it. Actually kinda nice if you’re loading the trunk while the engine’s running.  This is true even for the 4-cylinder 28i models. You can clearly see it on previous gen X1s with two tips on the left. One of them’s almost always closed. 

Sovande > CompactLuxuryFan 10/11/2018 at 15:52

0

Cool!  I appreciate the info!

Tekamul > Sovande 10/11/2018 at 15:53

1

Pretty much all of the dual pipe BMWs have the left side butterfly now.

MrDakka > Spanfeller is a twat 10/11/2018 at 16:05

1

More pipes equals more speed, obviously!

Don't you know how jet engines work? More nozzles means more engines which means more faster. It's just simple math.

davesaddiction @ opposite-lock.com > Spanfeller is a twat 10/11/2018 at 16:17

1

Always liked the look of the two on one side, kinda bummed that’s gone.

davesaddiction @ opposite-lock.com > KingT- 60% of the time, it works every time 10/11/2018 at 16:19

1

I’d put the Type R on my list if they’d make one with an all black interior and get rid of the red striping on the skirts all the way around and on the wheels. It’s just too much.

KingT- 60% of the time, it works every time > MrDakka 10/11/2018 at 16:23

2

Presenting...The fastest plane in the worl d

Spanfeller is a twat > davesaddiction @ opposite-lock.com 10/11/2018 at 16:31

0

I like the really small exhaust pipe in the 318i

Spanfeller is a twat > davesaddiction @ opposite-lock.com 10/11/2018 at 16:35

0

As more time passes, I love the type R more

davesaddiction @ opposite-lock.com > Spanfeller is a twat 10/11/2018 at 16:39

0

It’s amazing how favorable reviews have the power to change one’s perception... (see Mitsubishi Evo, Subaru WRX & STi)

Mr. FiSTer of Team FiST Fetish > Spanfeller is a twat 10/11/2018 at 16:52

1

Four cylinders should only have one tip (fuck you Subaru with your four pipes that do nothing but add weight).

Spanfeller is a twat > davesaddiction @ opposite-lock.com 10/11/2018 at 16:53

1

I actually hate Honda for not selling the current gen Si here in Mexico.

But hey, the CTR is quite good. 

davesaddiction @ opposite-lock.com > Spanfeller is a twat 10/11/2018 at 17:00

0

I’m sure I could very happily daily drive an Si.

Klaus Schmoll > davesaddiction @ opposite-lock.com 10/11/2018 at 17:05

2

Like this?

Spanfeller is a twat > davesaddiction @ opposite-lock.com 10/11/2018 at 17:09

0

I love the new Si! and I also like the 1.5... but again, they only sell the auto.

davesaddiction @ opposite-lock.com > Spanfeller is a twat 10/11/2018 at 17:11

1

Boo...

davesaddiction @ opposite-lock.com > Spanfeller is a twat 10/11/2018 at 17:15

0

I really enjoyed my ‘88 Acura Legend and ‘91 Accord.

My wife’s current ride is a ‘14 MDX. Makes a good noise when you get on it!

davesaddiction @ opposite-lock.com > Klaus Schmoll 10/11/2018 at 17:16

0

YES.

Spanfeller is a twat > Sovande 10/11/2018 at 20:54

1

It’s a mustang, but still, it shows how butterfly valves might open in a production vehicle 

Spanfeller is a twat > davesaddiction @ opposite-lock.com 10/11/2018 at 20:57

1

My grandfather went through one mini, two Mercedes’, a Cadillac, and probably something else in the last decade , my grandmother has kept her 2008 Acura for all that time and she loves it.

Deep down I  feel that my grandfather hates that she’s so satisfied with it.

davesaddiction @ opposite-lock.com > Spanfeller is a twat 10/11/2018 at 21:36

0

Haha!