06-27-2024, 12:39 AM
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#51 (permalink)
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It's all about Diesel
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Isn't it what ArDun heads were all about?
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06-27-2024, 03:55 AM
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#52 (permalink)
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Master EcoModder
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Ardun were a pushrod OHV hemi:
images.squarespace-cdn.com/content/v1/5e831d00b13b87280a18820a/1593908659874-SJJ6SHHF0PFEEOQ5NZ1F/ARDUNart001blue.jpg
Quote:
https://automotiveamerican.com › 2021 › 08 › 10 › whats-an-ardun-the-ultimate-ohv-conversion-for-the-ford-flathead-v-8-mike-herman-of-hh-flatheads-torqtalk
What's an ARDUN? The Ultimate OHV Conversion for the Ford Flathead V-8 ...
Interestingly, the Ardun had short intake rockers and long exhaust rockers and was similar to the 1951 Chrysler Hemi but preceded it by four years when it was introduced in 1947. ... However, the heads produced between 25- and 60-percent more power depending on tuning—the original had but a single
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07-03-2024, 04:00 AM
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#53 (permalink)
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It's all about Diesel
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Took me a while to figure out that other was an F-head layout. The only F-heads that I remember with the exhaust valves on the head were some Moto Guzzi engines, while all others had the intake over exhaust.
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09-28-2024, 01:01 AM
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#54 (permalink)
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It's all about Diesel
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07-06-2025, 01:37 PM
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#55 (permalink)
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Two-stroke radial:
Every part of this is innovative. Radial with even number of cylinders, no master connecting rod, two intake/one exhaust ports to promote swirl, low parts count, no reduction gearing.
I don't understand the connecting rod bearings.
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07-07-2025, 10:34 AM
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#56 (permalink)
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Somewhat crazed
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Hmm non odd arrangement? Means it doesn't need to fire sequentially. No shakey shakey
Most aircraft radials are/were direct drive. Only geared ones I know of were very high displacement trying to not overspeed the prop tip past sonic on a monster diameter.
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