Member
Join Date: Jun 2012
Location: Southampton
Posts: 36
Thanks: 4
Thanked 1 Time in 1 Post
|
|
LinkBack | Thread Tools | Rate Thread | Display Modes |
M5 E39...Trumpet options...
I admit I am a bit of a newbie M5 owner, and this may have been covered before somewhere...But..
If the MAF sensors are no longer in use for whatever reason (e.g. an AlphaN install) what reason is there to have the engine cover on like this other than the air filters for the intakes? If there is no reason, or a bypassable reason, can the 'velocity stacks' as some call them (or ITB trumpets) be changed for modifying the torque and behaviour of the engine, then mapped to suit? Of course with a different air filter system...or is it a no go?
If the MAF sensors are no longer in use for whatever reason (e.g. an AlphaN install) what reason is there to have the engine cover on like this other than the air filters for the intakes? If there is no reason, or a bypassable reason, can the 'velocity stacks' as some call them (or ITB trumpets) be changed for modifying the torque and behaviour of the engine, then mapped to suit? Of course with a different air filter system...or is it a no go?
| Sponsored Links | |||
|
Advertisement
|
|
||
M5 Expert (>4000)
Join Date: Dec 2008
Location: Baltimore, Md
Posts: 4,896
Thanks: 297
Thanked 1,058 Times in 734 Posts
yes, they can be changed/modified.
running a street car without air filtration is silly, to put it politely.
running a street car without air filtration is silly, to put it politely.
m5board.comoholic (>1000 posts)
Join Date: Aug 2011
Location: Charleston, SC
Age: 30
Posts: 1,548
Thanks: 82
Thanked 149 Times in 105 Posts
Have you ever seen leaves or dead bugs in the engine bay? That is a reason 
As for the trumpets, as far as I know they can be modified with not too much affect.
As for the trumpets, as far as I know they can be modified with not too much affect.
2000 BMW m5 Carbon Black Metallic / Full Black Leather / Aluminum Trim
Matte Black Kidneys - Monochrome Trunk/Hood Roundels - Monochrome Trunk Badge - Slimms Finned Rear Diffuser: Matte Black
545 SSK - IATS Relocation
Full Interior / license plate LEDs
BBS RS-GT Diamond Black / Polished Lip
Muffler Delete
Evolve Alpha-N tune
60K Miles 8/15/12
|
|
|
Member
Join Date: Jun 2012
Location: Southampton
Posts: 36
Thanks: 4
Thanked 1 Time in 1 Post
Oh wow, thanks.
Of course air filters should be used.
I guess the modded pipework is for oil breather hoses?
Of course air filters should be used.
I guess the modded pipework is for oil breather hoses?
M5 Expert (>4000)
Join Date: Dec 2008
Location: Baltimore, Md
Posts: 4,896
Thanks: 297
Thanked 1,058 Times in 734 Posts
Member, Sport: Off DSC: On (>50 posts)
Join Date: Jan 2009
Location: fort walton beach, Fl
Posts: 80
Thanks: 19
Thanked 5 Times in 5 Posts
Seen many threads on this but not much evidence in any gains. Anyone have any reports or a worthy street able option?
I think dinan for a short time had Some aftermarket stacks that went with bigger mafs and intakes.
I think dinan for a short time had Some aftermarket stacks that went with bigger mafs and intakes.
Member, P500 Sport, DSC off (>900)
Join Date: Nov 2011
Location: Endicott, NY
Posts: 994
Thanks: 33
Thanked 43 Times in 41 Posts
Quote:
Originally Posted by jeffkukuruda
View Post
Seen many threads on this but not much evidence in any gains. Anyone have any reports or a worthy street able option?
I think dinan for a short time had Some aftermarket stacks that went with bigger mafs and intakes.
I think dinan for a short time had Some aftermarket stacks that went with bigger mafs and intakes.
Dinan Product Page High Flow Throttle Bodies & Tuned Velocity Stacks M5
-Mike
M5 Expert (>4000)
Join Date: May 2010
Location: Naperville, IL
Posts: 6,011
Thanks: 160
Thanked 1,290 Times in 907 Posts
THE FOLLOWING POST MIGHT CONTAIN SARCASM! IF SARCASM OFFENDS YOU PLEASE STOP READING TIS POST IMMEDIATELY!!! YOU HAVE BEEN WARNED!!
That seems like a good bargain
plus it gets you 2 points cloesr to the Dinan badge 
That seems like a good bargain
plus it gets you 2 points cloesr to the Dinan badge
If you find this post unsatisfactory, please add me to your Ignore List so you will not be disappointed again in the future.
---> http://www.m5board.com/vbulletin/pro...?do=ignorelist
Rob
Prior - 98 540i with Chevy 6.6 LS2/T-56 power - Build Thread
Older - 92 325i with Chevy 6.6 LS2/T-56 Power
Oldest BMW - 95 M3 with Chevy 6.6 LS2/T-56 Power
Member, P500 Sport, DSC off (>900)
Join Date: Nov 2011
Location: Endicott, NY
Posts: 994
Thanks: 33
Thanked 43 Times in 41 Posts
Quote:
Originally Posted by rao
View Post
THE FOLLOWING POST MIGHT CONTAIN SARCASM! IF SARCASM OFFENDS YOU PLEASE STOP READING TIS POST IMMEDIATELY!!! YOU HAVE BEEN WARNED!!
That seems like a good bargain plus it gets you 2 points cloesr to the Dinan badge
That seems like a good bargain
plus it gets you 2 points cloesr to the Dinan badge And I love the disclaimer you post before everything you write now. It's hilarious. And that statement was not made sarcastically.
-Mike
Member, Sport: Off DSC: On (>50 posts)
Join Date: Jan 2009
Location: fort walton beach, Fl
Posts: 80
Thanks: 19
Thanked 5 Times in 5 Posts
Yep that's them. Soooo expensive though. They look shorter compared to factory pic above so I'm assuming they are tuned for high end and will shift the torque curve higher in the rpm range supported by there at peak figure higher than stock. Something to think about for the OP. everything is a compromise.
|
|
| Bookmarks |
| Currently Active Users Viewing This Thread: 2 (0 members and 2 guests) | |
| Thread Tools | |
|
Show Printable Version Show Printable Version
Email this Page Email this Page
|
|
| Display Modes | Rate This Thread |
|
|
| Similar Threads | ||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Tire Options on my E39 M5 | sportscardog | E39 M5 and E52 Z8 Discussion | 20 | 8th October 2014 01:45 PM |
| S85 intake trumpet | digger | E60 M5 and E61 M5 Touring Discussion | 1 | 5th August 2012 12:59 AM |
| WTB: M5 Left Side Intake Trumpet. Anybody? | TiAg5 | E39 M5 and E52 Z8 Discussion | 4 | 10th June 2008 06:44 AM |
| E39 M5 Options | keithw | E39 M5 and E52 Z8 Discussion | 1 | 14th April 2002 08:50 PM |
| Posting Rules | |
