Header design

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#A long and smooth collector is a good thing.
 
#A long and smooth collector is a good thing.
 
#Just like header tube size, be reasonable with the size of your exhaust system.
 
#Just like header tube size, be reasonable with the size of your exhaust system.
 
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One thaing that has not been discussed it the unequal firing order from one bank to the other.  I did an research paper  on Exhaust tuning when I was in college, A Jaguar racung engine had %105 volumetric efficiency,,, the the torque peaks vs rpm  looked like the grand teton mountains  Start with a sheet of graph paper and draw the engine in plan view then draw a line 8 blocks long fron cylinder no 1 . a line 7 blocks from cylinder firing next.... 6 blocks from the cylinder that fired third  etc  and so on following the firing order. .  You will see the lines are not uniformly distributed ,  the ford 63 indy engine had the "bundle of snakes" exhaust system on the top with pipes crossing over to have 4 equally spaced exhaust charges in each exhaust header,  some race car headers had pipes crossing under the trans to get equal charging in each heaqder ==See also==
==See also==
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[http://en.wikipedia.org/wiki/Manifold_%28automotive_engineering%29 Wikipedia article on exhaust manifolds]
 
[http://en.wikipedia.org/wiki/Manifold_%28automotive_engineering%29 Wikipedia article on exhaust manifolds]
  
 
[[Category:Engine]]
 
[[Category:Engine]]
 
{{youcanedit}}
 
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Revision as of 21:57, 10 May 2008

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