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04-06-2015, 05:06 PM
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#1 |
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Junior Member
Join Date: Jul 2014
Location: northern Minnesota
Posts: 64
Likes: 0
Liked 0 Times in 0 Posts
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Re: Header size
Mike, Your primary tubes should be 1 7/5 inches. The collectors should be 2 1/2 inches. If you use a merge collector the 2 1/2 inches should be the minor diameter. The major, or larger size, can be almost any size you want. I know this sounds awfully small but we set national records with this formula. If you don't think it works just bolt a street reducer on your 3 1/2 collectors [3 1/2 to 2 1/2] and see what happens. This the cheapest way and I think you will be be surprised. Hope this helps and good luck.
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04-07-2015, 09:22 AM
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#2 |
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Member
Join Date: Dec 2001
Location: Ontario Canada
Posts: 369
Likes: 125
Liked 7 Times in 5 Posts
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Re: Header size
Dmir55. Check your PM
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04-07-2015, 06:24 PM
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#3 |
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Junior Member
Join Date: Jul 2014
Location: northern Minnesota
Posts: 64
Likes: 0
Liked 0 Times in 0 Posts
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Re: Header size
Mike I am sorry old fingers and key boards don't mix. The primary tube size should be 1 3/4. sorry about that.
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04-07-2015, 07:40 PM
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#4 |
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VIP Member
Join Date: Oct 2013
Location: Gulf Breeze, FL
Posts: 1,651
Likes: 8
Liked 33 Times in 16 Posts
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Re: Header size
We knew what you meant.
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Rich Taylor I/SA - 321 |
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