Seems like the same sort of gearheads that like hot cars, are usually into guns and aircraft, too. Just cool, capable, high pressure machinery is somehow in our blood.
Yes, Rare Bear was running a Wright 3350. I have no doubt that they had over 1 hp per cu inch. They are spraying water alcohol into the intakes
of those birds (in general) to cool the intake charge and provide a bit of extra power, too. The Mustangs leave a trail of water as they also spray
water over the outside of the intercoolers to increase heat transfer, further densify the charge air. That they can make the Navy airfoil, intended for
gentle landing behavior at 65 kts coming aboard the carrier at those speeds is impressive. The Mustang has an advanced laminar flow airfoil, far lower
drag at high speed. The 3350 Wright is only an 18 cylinder engine, two rows of 9 cylinders. A friend has a new steel crankcase as a souvenir. I keep
trying to buy it from him to put a glass slab on top of for a coffee table. I think you are right about the nitrous systems.
I worked the pits, towing aircraft for the Kansas City air races back in '93. Shelton had no sponsor, I think, and wasn't there. Dreadnought won - Sea Fury
with a P&W 4360 corncob. Four rows of 7 cylinders each. SuperCorsair and Dreadnought are the only ones that have run that engine, the biggest US
radial ever made. Just being close to those aircraft, connecting towbars, etc was very cool.
Too bad nobody ever raced the Hawker Tempest. The engine was the Napier Sabre, two flat 12s stacked and cranks geared together - and sleeve valves.
Always wanted to hear one run in anger on the racetrack, but I don't think any are flying anymore. The Sea fury, back when the original Centaurus engines
were still viable were amazing to hear. Super quiet while going like heck. Apparently the poppet valves are causing a good bit of the noise, other than
the exhaust note. Centaurus is an 18 cyl (two rows of 9) like the Wright 3350, but "only" 3272 cu inch, with sleeve valves. Quiet, and very powerful. They
had the five bladed prop, and of course, being British, turned the wrong way.
https://upload.wikimedia.org/wikipedia/commons/9/9f/NapierSabreIII.JPG
Bill