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      07-22-2008, 05:04 AM   #1
JetBlack5OC
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M3 and headers - Great Read!

M3 is good candidate for aftermarket headers.

If anyone doesn't get EuropeanCar, they have a great article on Supersprint exhaust anatomy for the RS4 and M3.

Part One:
http://www.europeancarweb.com/tech/e...int/index.html

Quote:
"By analyzing the baseline pressure and temperature data throughout the stock exhaust system, Supersprint engineers determine what pipe diameter to use and where maximum performance gains can be made. At each measurement location (or exhaust component) there is a unique back pressure characteristic. The graphs on page 82 and this page show pressure characteristics at the four locations in the OEM system of the RS4 and E92 M3 respectively.

Exhaust pressures increase with revs at each point, decreasing as the exhaust moves through the system. Note that an average vehicle with a 6000-rpm redline will have a 'Pressure 1' value in the 7.3 psi range (dotted black line on each plot), while more sporting models will measure in the 3.0 to 5.5 psi range at 6000 rpm and continue to increase toward their higher redlines. The RS4 and M3 fall into this sporting/performance range and therefore have systems that are well optimized from the factory. However, the new M3 has higher Pressure 1 values, indicating a good candidate for an aftermarket header application. Incidentally, Supersprint is developing a step header for the new M3."
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Last edited by JetBlack5OC; 07-22-2008 at 05:29 PM.
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      07-22-2008, 08:33 AM   #2
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      07-22-2008, 03:30 PM   #3
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part 2 of the 3 part series is also avaliable in the sept. issue.
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      07-22-2008, 05:28 PM   #4
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Quote:
Originally Posted by Blip Bavarian View Post
part 2 of the 3 part series is also avaliable in the sept. issue.
Yes Part 2 is in the current edition I got last week. They haven't posted it on their site yet. Part 3 will be in next months edition.
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      07-24-2008, 01:18 PM   #5
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Wow, I want this stuff!!!
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      07-24-2008, 02:54 PM   #6
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Quote:
Originally Posted by JetBlack5OC View Post
Yes Part 2 is in the current edition I got last week. They haven't posted it on their site yet. Part 3 will be in next months edition.

Damn, it must take awhile to cross the boarder in to Canada, still awaiting my new issue. The first article was certainly a good read.
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http://5252motorsports.blogspot.ca/2...3-sleeper.html
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      07-24-2008, 04:22 PM   #7
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Quote:
Originally Posted by BMW-M-Mexico View Post
Wow, I want this stuff!!!

Well by now we all know you get what you want. Its only a matter of time before you pass the 500hp mark and with he racing seats and other weight reductions mods you will surely do, you'll be blasting past Ferrari's in no time.
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      07-24-2008, 05:28 PM   #8
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Quote:
Originally Posted by gadget View Post
Well by now we all know you get what you want. Its only a matter of time before you pass the 500hp mark and with he racing seats and other weight reductions mods you will surely do, you'll be blasting past Ferrari's in no time.

Probably yes!!
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      07-24-2008, 05:31 PM   #9
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European Car Magazine is awesome.
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      07-24-2008, 07:21 PM   #10
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Quote:
Originally Posted by BMW-M-Mexico View Post
Wow, I want this stuff!!!
This is why I call you the "mod general". You want mods that don't even exist (under development) yet!
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      07-25-2008, 11:43 AM   #11
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Quote:
Originally Posted by lucid View Post
This is why I call you the "mod general". You want mods that don't even exist (under development) yet!
Hahaha!! That is sooooooo true!!!!!!
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      07-28-2008, 12:32 PM   #12
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Quote:
Originally Posted by BMW-M-Mexico View Post
Wow, I want this stuff!!!
Is there anything you DON'T want? lol

You are the ultimate test mule! THANKS!
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      07-28-2008, 12:43 PM   #13
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Quote:
Originally Posted by GT3 Tim View Post
Is there anything you DON'T want? lol

You are the ultimate test mule! THANKS!
Nop, not much!!! But as you may imagine, there are some things I don't want.
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      07-28-2008, 01:53 PM   #14
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Quote:
Originally Posted by BMW-M-Mexico View Post
Nop, not much!!! But as you may imagine, there are some things I don't want.
I'm just waiting for you to get a a turbo or supercharger on your car. If that happens after all of these other gains you keep racking up, will be quite impressive.
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      07-28-2008, 01:58 PM   #15
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I'm just waiting for you to get a a turbo or supercharger on your car. If that happens after all of these other gains you keep racking up, will be quite impressive.
I do like SCís and love turbos much better, we will see what they come up with but donít ever want to do something where I lose the carís balance. If forced induction can be done while keeping general weight distribution/performance about the same, then Iím all for it. This can probably be done with light weight materials and sending some components to the rear. Anyway, we will see. This is sometimes why a stroker kit makes so much sense in this particular case and before I have further information on the options.
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      09-09-2008, 06:15 PM   #16
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Quote:
Originally Posted by BMW-M-Mexico View Post
I do like SCís and love turbos much better, we will see what they come up with but donít ever want to do something where I lose the carís balance. If forced induction can be done while keeping general weight distribution/performance about the same, then Iím all for it. This can probably be done with light weight materials and sending some components to the rear. Anyway, we will see. This is sometimes why a stroker kit makes so much sense in this particular case and before I have further information on the options.
What weight reductions have you done? Thanks.
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      09-10-2008, 09:30 AM   #17
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Not that many really, total weight reduction is 160 lbs with CF boot lid, CF intake, lighter exhaust, lighter brakes (Brembo BBK), lighter wheels (HRE's) and, lighter seats (on the way) and some other smaller itmes here and there.
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      09-10-2008, 02:53 PM   #18
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Quote:
Originally Posted by BMW-M-Mexico View Post
I do like SCís and love turbos much better, we will see what they come up with but donít ever want to do something where I lose the carís balance. If forced induction can be done while keeping general weight distribution/performance about the same, then Iím all for it. This can probably be done with light weight materials and sending some components to the rear. Anyway, we will see. This is sometimes why a stroker kit makes so much sense in this particular case and before I have further information on the options.
I think I hear Steve Dinan calling your name
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      09-10-2008, 03:47 PM   #19
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Quote:
Originally Posted by M2381 View Post
I think I hear Steve Dinan calling your name
I hope you are kidding. AA ftw for FI.
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      09-10-2008, 04:05 PM   #20
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Quote:
Originally Posted by M2381 View Post
I think I hear Steve Dinan calling your name
It may very well be.

Quote:
Originally Posted by PunjabiM3 View Post
I hope you are kidding. AA ftw for FI.
Yep, agreed, AA FI FTW!
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      09-11-2008, 01:53 AM   #21
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Quote:
Originally Posted by BMW-M-Mexico View Post
Not that many really, total weight reduction is 160 lbs with CF boot lid, CF intake, lighter exhaust, lighter brakes (Brembo BBK), lighter wheels (HRE's) and, lighter seats (on the way) and some other smaller itmes here and there.
Wow can't wait to see the car. Will you weigh the final car ?
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      09-11-2008, 10:40 AM   #22
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Quote:
Originally Posted by IWC Doppel View Post
Wow can't wait to see the car. Will you weigh the final car ?
I may ask someone to do it for me if they have access to one. Honestly I donīt think I would have the time to do it.
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