BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Today's Posts


Go Back   M3Post - BMW M3 Forum > E90/E92 M3 Technical Topics > Track / Autocross / Dragstrip / Driving Techniques
 
European Auto Source (EAS)
Post Reply
 
Thread Tools Search this Thread
      02-25-2013, 09:17 PM   #23
1MOREMOD
-
1MOREMOD's Avatar
United_States
11817
Rep
23,187
Posts

Drives: Race car->
Join Date: Mar 2009
Location: check your mirrors

iTrader: (5)

Quote:
Originally Posted by JBasham View Post
Hmm, when I was little Dad used to have a 55 Chevy wagon which used metal cans from frozen orange juice concentrate as an actuall part of the exhaust. They were the right diameter, and held up pretty well.
nice. those look like real beer cans in that first photo like modelo or pbr or something.
__________________

02 Tiag e46 M3|6MT|GC plates|MCS c.o.|GC bars|GC race control arms|GC bushings|BW eng. & tran. mounts|subframe kit|BW race shifter|BW Jaffster|Euro header|BW exhaust|K&N c.a.i.|Epic race tune|Rouge pulleys|Seibon CF hood|CSL bumper|apr gt 250 & splitter|ST-40|XR-2|SS lines|half cage|Recaro profi|Profi 2 harness|BMWpedals|BW studs|
Appreciate 0
      02-26-2013, 01:06 AM   #24
Alekshop
Alekshop's Avatar
United_States
436
Rep
2,373
Posts

Drives: E30 M3 l E46 M3 l GT4 l 991 RS
Join Date: Nov 2009
Location: Bay Area

iTrader: (8)

Quote:
Originally Posted by THE TECH View Post
It's interesting that they even need noise restrictions since Laguna Seca is nowhere near any housing tracts.
Laguna Seca track is located near the coast and surrounded by houses that are in 1 million range and more.

It's sad that we have to think about quieting down the exhaust but paying a $1000 per lap fee would be even more unpleasant.

The pipes/tips are removable and can be swapped to a Akrapovic tips within a few minutes.

It's not about how it looks at the track, it's about how it functions ...
Appreciate 0
      02-26-2013, 01:09 AM   #25
Alekshop
Alekshop's Avatar
United_States
436
Rep
2,373
Posts

Drives: E30 M3 l E46 M3 l GT4 l 991 RS
Join Date: Nov 2009
Location: Bay Area

iTrader: (8)

Quote:
Originally Posted by 1MOREMOD View Post
looks pretty bad. if it was a quick disconnect just used at the track that would work. are the angled sideways to direct sound away from the db booth?
You are correct, pointing in the direction away from the sound meter ...

Can be removed and we use them at the track only ...
Appreciate 0
      02-26-2013, 01:14 AM   #26
Alekshop
Alekshop's Avatar
United_States
436
Rep
2,373
Posts

Drives: E30 M3 l E46 M3 l GT4 l 991 RS
Join Date: Nov 2009
Location: Bay Area

iTrader: (8)

This picture that you posted is a pic of the car at Laguna Seca track. You can see what others do to pass the sound ...

It might look funny but it does the job.
Attached Images
 
Appreciate 0
      02-26-2013, 04:11 AM   #27
///M Power-Belgium
General
///M Power-Belgium's Avatar
Belgium
63328
Rep
24,658
Posts

Drives: ///M3-E92-DCT Silverstone II
Join Date: Jul 2012
Location: Belgium

iTrader: (0)

Agreed...but what about the extra weight on the tail of this Porsche and balance of the car ?
Appreciate 0
      02-27-2013, 12:25 AM   #28
Alekshop
Alekshop's Avatar
United_States
436
Rep
2,373
Posts

Drives: E30 M3 l E46 M3 l GT4 l 991 RS
Join Date: Nov 2009
Location: Bay Area

iTrader: (8)

Quote:
Originally Posted by ///M Power-Belgium View Post
Agreed...but what about the extra weight on the tail of this Porsche and balance of the car ?
well, we don't own that porsche so I can't tell you ... that wasn't the point.
Appreciate 0
      03-06-2013, 04:12 AM   #29
dagolfpro
Colonel
dagolfpro's Avatar
Taiwan
248
Rep
2,271
Posts

Drives: 2011 E90 M3
Join Date: Sep 2011
Location: SF Bay Area, CA

iTrader: (9)

Why there's a sound limit at Laguna. Don't know how much of it is true. The coalition does exist. http://www.southbayriders.com/forums...d.php?t=127571

I have the OEM Exhaust mod and I've hit over 95db numerous times.
__________________
2011.75 E90 AW | DCT | ZCP | ZCV | ZCW | ZP2 | Prem Sound | Moonroof | BMW Apps |
Mods List: Evolve Exhaust | M Perf Steering Wheel | Tint | Lux | Hardwired V1 | KW V3 | Volshlag CP | Brembo BBK | BBS FI | Yokohama AD08 R| Schroth 4 Point Harness | Challenge GT Diffuser | OEM GTS Wing| GTS Lip| I lied earlier, I wasn't done with mod, but I swear, I'm done now, no more mods...
Appreciate 0
Post Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 01:55 AM.




m3post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST