|
|
|
|
|
|
BMW Garage | BMW Meets | Register | Today's Posts | Search |
|
BMW 3-Series (E90 E92) Forum
>
Just one exhaust pipe active on 335? Normal?
|
|
02-11-2009, 03:27 PM | #1 |
Lieutenant
162
Rep 468
Posts
Drives: BMW 330i G20
Join Date: Aug 2007
Location: Sweden
|
Just one exhaust pipe active on 335? Normal?
I filmed my 335 coupe from behind with my camera today for the first time. Put the camera on the ground and started the car up and just revved it calmly a couple of times.
Then looked at the movie and I saw that smoke came out of both pipes immediately when starting up but then directly smoke stopped coming out from the drivers side exhaust and there was only smoke coming out of the passenger side pipe. Is this normal or should I take it to the dealer service and have then check it out? |
02-11-2009, 03:28 PM | #2 | |
SPRCHRGD E93 M3
12
Rep 271
Posts |
Quote:
__________________
E93 M3
Modded to perfection. |
|
Appreciate
0
|
02-11-2009, 03:30 PM | #4 |
Colonel
39
Rep 2,213
Posts |
Don't think it is on a timer, more like when your RPM goes over 3K it opens the valve and you get exhaust out both sides. There are a few ways to defeat the valve though so that it is open all the time.
__________________
Current: 07 335i e90 Previous: 09 Acura TSX PWP Tech Previous: 07 335i e90 with L.E.T. Flash |
Appreciate
0
|
02-11-2009, 03:34 PM | #5 |
SPRCHRGD E93 M3
12
Rep 271
Posts |
No timer, but that is the usual at least for me....... about 15 seconds... You can hear it switch at least with me... not sure about anyone else....
__________________
E93 M3
Modded to perfection. |
Appreciate
0
|
02-11-2009, 03:52 PM | #6 |
Lieutenant
162
Rep 468
Posts
Drives: BMW 330i G20
Join Date: Aug 2007
Location: Sweden
|
Thanks guys! Feel much better now! Now I only have to fix the scratched paint on the passenger side and I will be 100% prepared for the summer!
|
Appreciate
0
|
02-11-2009, 04:21 PM | #7 |
Second Lieutenant
8
Rep 230
Posts
Drives: '08 e92 335i
Join Date: Jan 2008
Location: little place called none of your Goddamn business
|
I think it only occurs when the engine is cold
__________________
2008 335i | Space Gray | Blk & Gray Poplar | 6 MT, M3 Lip, Painted Reflectors, Huper Optik 30 (35%), V1 Hardwire, Pussy Magnet
|
Appreciate
0
|
02-11-2009, 06:12 PM | #8 | ||
...
976
Rep 4,352
Posts
Drives: M340
Join Date: Aug 2006
Location: Seattle, WA
|
Quote:
Quote:
Nope, it is like that all the time... You just don't see the fumes coming out once the engine is warm. Op, Do a search on the site and there is a way to activate them both :-)
__________________
2020 G20 M340 xDrive - Portimao Blue - ZDA|ZPP|ZPX|1CR|1PE|6NW|6WD
2016 F10 535i xDrive - AW - Retired 2011 E92 M3 - AW……………....ED April 29th, 2010 - Retired 2007 E92 335i -Space Gray.....ED Oct 19th, 2006 - Retired |
||
Appreciate
0
|
02-11-2009, 07:24 PM | #9 | |
SPRCHRGD E93 M3
12
Rep 271
Posts |
Quote:
I didn't mean timer as a countdown, but from lack of experience it came out that way so that how it seemed to me. I knew for sure for the OP, there wasn't a problem so that's all that matter. Paul just laid out the more technical way, in a mature response.
__________________
E93 M3
Modded to perfection. |
|
Appreciate
0
|
02-11-2009, 07:50 PM | #10 |
BTC maxi
225
Rep 1,125
Posts |
my r32 does this for two reasons; one to meet and exceed noise restrictions
and the second being to allow back pressure at low RPM's. This prevents torque loss yet still allows the engine to breathe freely up top. Yes I know this is my first post and I am comparing apples to oranges but BMW isn't the only company doing this. |
Appreciate
0
|
Bookmarks |
|
|