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| The Pub For General Automotive Related Talk |
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05-04-2009, 10:56 AM
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Cam Luncheon
Join Date: Apr 2006
Location: Mooroopna
Posts: 375
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In the next couple of months I am going to have to make some custom extractors for the new race car. Wondering if anyone has any tips, tricks or educational material for not only the fabrication, but the science as well. Theres no point making some sweet extractors that are badly designed.
I will be making them out of 2" Mandrel bends into a 3" Collector. Engine for the first season will be a 351 Clevo ~400-450hp max RPM 5,500. Next Season the 393 will be completed and that will be ~650@7,500. So optimising them for the 393 will be the primary goal. There will be no dyno'ing various configurations so getting some math to get the first and final product as good as I can is a must.
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-- Any problem is best approached sideways ... with a crowbar --
-Mental on Life, the Universe and Everything. |
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05-04-2009, 11:04 AM
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TARMAC EATER & HSV BEATER
Join Date: Sep 2008
Location: Sydney North Shore
Posts: 1,395
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Try using these mate, Might help you determine best length etc....
http://www.bgsoflex.com/bestheader.html http://www.wallaceracing.com/header_length.php http://autolounge.net/calculators/ex...dersizing.html You need to sign up to this one, but its free and very informative http://www.headerdesign.com/login/index.asp Cheers Adam
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05-04-2009, 11:25 AM
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Cam Luncheon
Join Date: Apr 2006
Location: Mooroopna
Posts: 375
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Excellent! I've been looking for a website like that!
__________________
-- Any problem is best approached sideways ... with a crowbar --
-Mental on Life, the Universe and Everything. |
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10-04-2009, 09:35 PM
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#4 | ||
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TARMAC EATER & HSV BEATER
Join Date: Sep 2008
Location: Sydney North Shore
Posts: 1,395
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No worries buddy.
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10-04-2009, 09:40 PM
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FF.Com.Au Hardcore
Join Date: Feb 2009
Posts: 1,245
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Ill take some pics of nascar/v8 supercars ones for you tomorrow.
Hope they help out |
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11-04-2009, 11:11 AM
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Cam Luncheon
Join Date: Apr 2006
Location: Mooroopna
Posts: 375
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That could be very interesting indeed.
__________________
-- Any problem is best approached sideways ... with a crowbar --
-Mental on Life, the Universe and Everything. |
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11-04-2009, 11:19 AM
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#7 | |||
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TARMAC EATER & HSV BEATER
Join Date: Sep 2008
Location: Sydney North Shore
Posts: 1,395
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Quote:
Profi you post whore  :
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11-04-2009, 08:09 PM
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FF.Com.Au Hardcore
Join Date: Feb 2009
Posts: 1,245
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Heres a little speil i know about extractors. v8 supercars extractors are not exactly the same length. Same goes for nascar. . So basically mate make the shapes flow a much as possible within the confines of your engine bay and you should be fine.
ps i forgot to take some pics at work. but ill take some of the ones i have at home |
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11-04-2009, 08:16 PM
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FF.Com.Au Hardcore
Join Date: Feb 2009
Posts: 1,245
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Making Extractors.
Linear Mode
