Intake & Exhaust Questions and info regarding various aftermatket exhaust systems for the G35 (Headers,Y-Pipes, and Cat-Back Systems)

2003 G35 Sedan Dual Exhaust

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  #16  
Old 07-13-2009, 12:57 PM
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very interesting *rubbing chin* wanna see the ending result and would love to hear it!
 
  #17  
Old 07-13-2009, 03:41 PM
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Yes, the issue has more to do with filling up the tank. When I first did mine I removed it completely and the fuel tank did not have a way to vent air when I added fuel or the temperature changed so I had to put it back in.

It does use engine vacuum to pull fuel vapors through the motor and help with emissions but that was not the reason for me keeping it.
 
  #18  
Old 07-13-2009, 03:50 PM
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What about your rear bumper?
 
  #19  
Old 07-22-2009, 06:47 PM
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Hows it going? Any Updates?
 
  #20  
Old 07-23-2009, 11:06 PM
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Is there a system like this on the coupes and 350Zs? Where is it located on them?
 
  #21  
Old 07-23-2009, 11:45 PM
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subscribed w/ popcorn
 
  #22  
Old 07-24-2009, 12:09 PM
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As a Scientist/Engineer I always measure things to the extreme before I do physical work.

Measure the back pressure after cat at various rpms. Each PSI is roughly 2 HP worth of restriction.
You will see that the back pressure does not begin to climb until you exceed torque peak rpm.
Then you must balance potential gain against noise increases.

http://www.veryuseful.com/mustang/te...Scavenging.pdf

http://www.thrashercharged.com/tech_htm/exhaust.shtm
 
  #23  
Old 08-01-2009, 07:46 PM
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Originally Posted by Theory_EK
Cause it returns the vapors back to the manifold and it adds in the the air/fuel ratio. On a scale of one to ten how hard was this? From my understanding it was very complicated but you made it seem like simple job.
It's not hard at all... the biggest problem is having the tools there to help you complete the job. Make sure you keep it nice and neat. Take your time to make it look good.
 
  #24  
Old 08-01-2009, 08:07 PM
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cool, looks like a double stillen
 
  #25  
Old 08-01-2009, 08:15 PM
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Nice work!
 
  #26  
Old 08-01-2009, 08:22 PM
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sick setup and writeup!
 
  #27  
Old 08-01-2009, 08:41 PM
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Thanks everybody. I feel cool when I drive my G now... not that I didn't like driving it before, it is just more complete now
 
  #28  
Old 08-01-2009, 09:20 PM
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so what's next???
 
  #29  
Old 08-01-2009, 09:22 PM
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nice setup, love the look of the rear end
now you need a drop
 
  #30  
Old 08-01-2009, 10:48 PM
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next? well i am currently working on upgrading the brakes to 2006 brakes... after that i am pretty well done.
 


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