[mclovinmrt21]

Hey guys!
I'm hoping you guys can help me with a few things here. I am building an airplane and I want to try to put a hellcat engine in. However, there's a few things I need to do before I do so.
1. I need to find a way to pull the maximum amount of horsepower at the lowest rpm possible while also maintaining longevity. I'm hoping for 6-7+ hours of run time in one setting, which shouldn't be a problem but is something to consider.
2. The aircraft I'm building is acrobatic, so I would need to figure out if a dry sump system would be sufficient for the engine to run upside down and in all sorts of awkward movement.
If anyone as any ideas, comments or any advice, I'd love to hear what you have.

 

[MKL_DS]

Big power at low RPM should be doable if you overspin the blower and limit overall engine speed.
No help from me on the dry sump....but I know there's a sizeable group of people who drop LS1s in airplanes, they may be able to assist with some of the general info.

 

[Spoolin]

Does the HC engine have iron heads? If so, may be good to swap to a lighter, aluminum set. This should also increase efficiency and horsepower.

 

[MKL_DS]

They are Aluminum. I cant think of a factory V8 that has used iron heads for many years now...

 

[Spoolin]

They are Aluminum. I cant think of a factory V8 that has used iron heads for many years now...

Good to know. Seemed I had read recently that they were iron, but I was mistaken.

 

[BigDaddyEureka]

Another possible weight saving idea is to use the Hellcat long block and switch to a turbo setup. Our s/c is pretty heavy. However, the s/c will be more responsive than the turbos if you're wanting to do acrobatics.

Back in the late 40's / early 50's there was an experimental Hemi engine in a P-47....but it was a LOT larger...like 2500HP out of 2200 cubic inches!

The XI-2220 Hemi V-16: first Chrysler engine with a Hemi...

The XI-2220 Hemi V-16: first Chrysler engine with a Hemi head design Retired Chrysler engineer Pete Hagenbuch said while leading a tour of the museum: If you look at a cutaway of this engine, and you're looking at a cutaway of the 1951 New Yorker engine, you'd think they were brothers...

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