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Extending the Header Collector?

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Old Nov 27, 2009 | 09:58 PM
  #1  
Taijutsu's Avatar
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Default Extending the Header Collector?

Forum: I have been doing some research on headers and ex systems.
I noticed that going from RHs to headers, a big loss of midrange occurs?
I built my enging to pull like a BB in the midrange, I don't want to give up anything at 3,000-4,000.
The counter to this is supposed to be a longer 3"collector on the header.
How much longer can I go on 1 5/8 Dynomax?
How much will it cost?
For a strong SB w/3" collector, 10"-20" was mentioned.
How long before I run into crossmember?
I can see where these are the details that make the really strong performing cars. I want to do this right the first time, or hopefully by the second! lol
Thoughts?

R
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Old Nov 27, 2009 | 10:05 PM
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From: Reno nevada
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Merge collectors are best. You have guys on this forum like Gkull who made their own crossmember to pass a three inch exhaust system underneath the crossmember.

http://www.popularhotrodding.com/tec...ech/index.html
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Old Nov 27, 2009 | 10:51 PM
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Default

Originally Posted by Taijutsu
Forum: I have been doing some research on headers and ex systems.
I noticed that going from RHs to headers, a big loss of midrange occurs?
I built my enging to pull like a BB in the midrange, I don't want to give up anything at 3,000-4,000.
The counter to this is supposed to be a longer 3"collector on the header.
How much longer can I go on 1 5/8 Dynomax?
How much will it cost?
For a strong SB w/3" collector, 10"-20" was mentioned.
How long before I run into crossmember?
I can see where these are the details that make the really strong performing cars. I want to do this right the first time, or hopefully by the second! lol
Thoughts?

R

RHs? (I'm probably gonna feel stupid after someone explains)


Scott
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Old Nov 28, 2009 | 03:05 AM
  #4  
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From: Reno nevada
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Originally Posted by scottyp99
RHs? (I'm probably gonna feel stupid after someone explains)


Scott
Ram Horns - stock cast iron
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Old Nov 28, 2009 | 02:16 PM
  #5  
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From: Allen, TX, USA
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There used to be an exhaust tuner company advertising on here. They had a calculator that helped choose header, exhaust, etc. lengths and sizes. You might search the archives about this.

Have they updated any of the software dyno programs to handle any of these types of questions ?

Adam
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