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04-12-2023, 07:58 PM | #21 |
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Location: Wa.
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Re: 59AB - Headers vs stock exhaust manifolds?
Several people (John Lawson included) have done comparison dyno tests between stock exhaust manifolds and headers.
It takes at least 3 hp to feel a difference in performance in the seat of the pants. This never happened. They did NOT however compare header types. We DO know for a fact that "W" type make more hp on a race engine if they are big enough. |
04-12-2023, 11:45 PM | #22 |
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Join Date: Dec 2015
Location: Marana, AZ.
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Re: 59AB - Headers vs stock exhaust manifolds?
What are "W Type" headers? I googled it and got nothing. I can imagine a W configuration but do you have any pics?
Just curious as my only Flathead is in my F3 and stock. |
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04-13-2023, 02:39 PM | #23 |
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Re: 59AB - Headers vs stock exhaust manifolds?
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04-13-2023, 02:52 PM | #24 | |
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Re: 59AB - Headers vs stock exhaust manifolds?
Quote:
__________________
The only thing nice about being imperfect is the joy it brings to others.... "Silver rings, your butt! Them's washers!" "We shot our way out of that town for a dollar's worth of steel holes!" - from 'The Wild Bunch' - 1969 https://www.youtube.com/watch?v=7NReUd2_0u0 |
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04-13-2023, 11:28 PM | #25 |
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Join Date: Dec 2015
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Re: 59AB - Headers vs stock exhaust manifolds?
THAT is one BADDASS looking Flathead.
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