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Old 09-04-2013, 02:02 PM   #7617
Sinister redlines
Scooby Specialist
 
Member#: 120641
Join Date: Jul 2006
Chapter/Region: NWIC
Location: Port Orchard, WA
Vehicle:
05 HTA3586,BB 2.5L
CGM

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Quote:
Originally Posted by Maxwell Power View Post
everything is a balance. Once you establish proper flow paths, the size and length of the tubes all depends on total power output and system configuration.

Comparing up pipe sizes is about balancing flow to match total output and desired spool characteristics.
Comparing header designs is about proper flow path.

In other words, they aren't the same argument.
Exactly true,

I am running 2" primary headers and a custom 2-1/2" up pipe, along with a FP HTA GT3586 turbo. This setup is also one of Maxwell Powers longblocks and I made 532whp and 433wtrq at 23psi on E85 and a PIA tune. I have a great flow path for the setup I have chose including a 3 to 3-1/2" exhuast. Just another example as stated everything has to be designed to YOUR needs and not the one only way. A smaller faster spooling turbo would equal a smaller primary and up-pipe combo to be efficiant in the boost response range vs big turbo, big power cars need flow.
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