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04-06-2007, 08:22 PM
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#37 | |
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Lurker supreme!
Drives: old and boosted! Join Date: Nov 2006
Location: Ottawa, ON, Canada
Posts: 792
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Quote:
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2006 Red Blitzed RS 5-door |
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04-06-2007, 08:55 PM
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#38 | |
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der Zeck
Drives: '05 Audi A4 1.8t quattro Join Date: Sep 2006
Location: Toledo, OH
Posts: 5,231
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Quote:
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04-06-2007, 09:05 PM
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#39 |
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Lurker supreme!
Drives: old and boosted! Join Date: Nov 2006
Location: Ottawa, ON, Canada
Posts: 792
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On the subject of backpressure, here's a real interesting link that I found while digging around on the 'net during ChinoCharles' Megan header dyno stuff. Explains why a less restrictive header/exhaust component seems to decrease lower-RPM power. Guess what?? Its NOT backpressure!!
 Exhaust: The straight scoop on backpressure <-- awesome! must read! Exhaust system backpressure <-- another good one. 
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2006 Red Blitzed RS 5-door |
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04-10-2007, 09:08 AM
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#40 |
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GIGA...DRILL...BREAKER!!!
Drives: Lagann. ;P Join Date: Feb 2006
Location: My own little world.
Posts: 717
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I say slap 4 independent pipes on that sucker! A separate header for each cylinder! With 4 giant cans hangin' out the back! Hell yeah!
 ~YR
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Be polite. Be professional. But have a plan to kill everyone you meet. 
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04-10-2007, 09:40 AM
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#41 | |
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der Zeck
Drives: '05 Audi A4 1.8t quattro Join Date: Sep 2006
Location: Toledo, OH
Posts: 5,231
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Quote:
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04-10-2007, 10:52 AM
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#42 | |
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Banned
Drives: LB Join Date: Jul 2006
Location: OH
Posts: 7,787
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Quote:
"So the loss in torque has nothing to do with backpressure and everything to do with gas velocity." That statement made me laugh. Gas pressure and gas velocity are codependent. Although he does a great job explaining scavenging, I'd take it with a grain of salt. He left out the simple high school physics. It is still a good read though. I just don't think its all scavenging, just like I don't think its all backpressure. It is a combination of these and many more factors that determines the efficiency of an exhaust system.
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04-10-2007, 10:58 AM
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#43 | |
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der Zeck
Drives: '05 Audi A4 1.8t quattro Join Date: Sep 2006
Location: Toledo, OH
Posts: 5,231
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Quote:
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04-10-2007, 11:34 AM
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#44 |
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vroom vroom
Drives: lil red 5-door Join Date: Sep 2006
Location: Bangkok, Thailand
Posts: 7,744
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but instead of having the pipes exit at the back, split them, two a side, right behind the front wheels. Then screw up your fuel map to make it extra rich, and spit FIRE!
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The price of freedom of religion, or of speech, or of the press, is that we must put up with a good deal of rubbish. - Robert Jackson  Bye bye 1NZ... |
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04-10-2007, 11:44 AM
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#45 |
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der Zeck
Drives: '05 Audi A4 1.8t quattro Join Date: Sep 2006
Location: Toledo, OH
Posts: 5,231
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A fire breathing Egg!!
someone PLEASE photoshop that!!
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04-10-2007, 11:55 AM
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#46 |
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vroom vroom
Drives: lil red 5-door Join Date: Sep 2006
Location: Bangkok, Thailand
Posts: 7,744
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while searching for pictures of flaming exhausts I found this abomination... exhaust spinner. I'm gonna have to jump off a tall building now, nice knowing you guys...
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The price of freedom of religion, or of speech, or of the press, is that we must put up with a good deal of rubbish. - Robert Jackson Bye bye 1NZ... |
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04-10-2007, 11:57 AM
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#47 |
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der Zeck
Drives: '05 Audi A4 1.8t quattro Join Date: Sep 2006
Location: Toledo, OH
Posts: 5,231
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Ridin Spinna's
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04-10-2007, 12:55 PM
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#48 |
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Modification Condoner.
Drives: 2007 Black Sand Liftback Join Date: Jan 2007
Location: Chicago, IL
Posts: 360
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rice rice baby....ding ding ding da da ding ding...vanilla...rice rice baby
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 Tanabe DF, Debadged, stripped, Black emblems |
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04-10-2007, 12:59 PM
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#49 | |
 
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04-10-2007, 01:37 PM
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Super Moderator
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Quote:
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04-10-2007, 02:04 PM
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#51 |
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<object width="425" height="350"><param name="movie" value="http://www.youtube.com/v/MxN_pbMOFk0"></param><param name="wmode" value="transparent"></param><embed src="http://www.youtube.com/v/MxN_pbMOFk0" type="application/x-shockwave-flash" wmode="transparent" width="425" height="350"></embed></object>
I love it!
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04-10-2007, 02:06 PM
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#52 |
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[img]<object width="425" height="350"><param name="movie" value="http://www.youtube.com/v/MxN_pbMOFk0"></param><param name="wmode" value="transparent"></param><embed src="http://www.youtube.com/v/MxN_pbMOFk0" type="application/x-shockwave-flash" wmode="transparent" width="425" height="350"></embed></object>[/img]
http://www.youtube.com/watch?v=MxN_pbMOFk0 I love it! Edit: Booo... it didn't work... Damn yous Youtube... DAMN YOUS! |
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04-10-2007, 02:08 PM
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#53 |
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Super Moderator
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Yo, VIP, let's KICK IT!
 Ah, to be in middle school again... |
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04-10-2007, 02:18 PM
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#54 | |
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Quote:
With your rag-top down so your hair can blow The girlies on standby waving just to say hi
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