"Demon-Xanth knows how to operate a street." (demon-xanth)
12/12/2016 at 09:34 • Filed to: None
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"Demon-Xanth knows how to operate a street." (demon-xanth)
12/12/2016 at 09:34 • Filed to: None | 2
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...you gotta be crazy in an awesome way.
Party-vi
> Demon-Xanth knows how to operate a street.
12/12/2016 at 09:42 |
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Hot rodding at its finest.
RamblinRover Luxury-Yacht
> Demon-Xanth knows how to operate a street.
12/12/2016 at 09:47 |
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Such a shock that they’re using the exhaust tube redirect. The stock cast tubes straight through coolant are totally safe and would never ever cause high pressure 1000 degree F failures to coolant and blow the heads off like bomb, ever.
jimz
> RamblinRover Luxury-Yacht
12/12/2016 at 09:52 |
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kind of reminds me of the Buick “nailhead” V8. the exhaust ports flowed so poorly that some drag racers actually reversed the flow using blower(s) to force air in through the exhaust ports and sending the exhaust out the freer-flowing intake ports.
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RamblinRover Luxury-Yacht
> jimz
12/12/2016 at 10:04 |
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Well, the Ford Flathead’s exhaust tubes actually run between cylinders and through the coolant, which makes them run quite hot and is a recipe for trouble even in minor tweaking. A lot more trouble than mere breathing problems - not that it breathes well either. There are conversions like the one in Xanth’s picture, and other conversions to OHV - one of which (Ardun) actually ended up feeding into the development of the original Hemi.
Something worth note about exhaust flow problems - the amount of volume needed for a given amount of flow is much less than you’d think simply because in a sense the exhaust gasses are more “slippery” than intake gasses. That being said, I’d be curious what a non-reversed setup *fix* for the nailhead would be. There were obviously some out there, see e.g. Tommy Ivo. It looks to me like you can with some trouble grind away the restrictions, but that may compromise the head - a lot.
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jimz
> RamblinRover Luxury-Yacht
12/12/2016 at 10:09 |
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exhaust is less dense due to how hot it is. ‘s why exhaust valves are almost nearly always smaller than intake valves.
That being said, I’d be curious what a non-reversed setup *fix* for the nailhead would be.
there really isn’t a good one; that torturous bend in the exhaust port just kills flow. the 3 valve Ford Modular engines had a similar problem, but not nearly that bad.
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RamblinRover Luxury-Yacht
> jimz
12/12/2016 at 10:13 |
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I know. My point was more that the intuition someone half-informed would have (that the side doing the expanding would need more room) is wrong. The density drop affects flow characteristics so much that even at a higher flow rate to compensate for the higher volume it’s less sensitive to restriction.