Decided to buy a new engine for the Z

[Ccmano]

Need a trailer to haul it...;)

http://a66.tinypic.com/1e82mo.jpg

[Young1]

How many cylinders? When was it built?


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[Paul Workman]

LOL!

Gas mileage prolly ... not as good as your LT5. But! You'll be the only one on the block that has one like it! I doubt Pete or Marc will have the quals to work on it....Bob Gillig...maybe! LOL!

[Mystic ZR-1]

Might have to modify the front crossmember
to get it to fit?
Hope your local gas station carries 115/145 octane av-gas...

[Ccmano]

Lol... I was at the Reno Air Races today, saw this and thought of you guys! I have no idea who made it or how many cylinders it has. Must have been a nightmare to work on and keep running.
H
:cheers:

[rush91]

Exhaust drone? What exhaust drone......you may need a hood scoop.

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[Young1]

Oil leak? What oil leak? All corvette engines leak oil!


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[Ccmano]

From what I have been to google it's a Pratt & Whitney 5600XBSAP that puts out 7000 hp!

"A fun display for the fans was an engine shown behind the Grandstands: the Pratt & Whitney 5600 XBSAP! A fifty-six cylinder radial with eight rows of seven cylinders and displacing 8,720 cubic inches! A massive R-8720 power plant. A lot of people stood around scratching their heads over this one: that is, until they realized it was two R-4360 power sections bolted together! A lot of “experts” and “aviation buffs” were heard to make some interesting rationalizations and statements of “fact” about its history!"

http://a63.tinypic.com/2crpph1.jpg

[Jagdpanzer]

The B29 was powered by the Wright R3350
The further developed Boeing B50 had the Pratt & Whitney R-4360 Wasp Major

[Ccmano]

After further googling the concensus appears to be that it's a mock up. Probably never ran. The biggest and last production radial engines P&W ever produced were the "corncob" 28 cylinder R-4360's. Cooling, fuel economy and the development of the jet engine killed it.
H
:cheers:

[Ccmano]

Here you go Paul, next best thing... an R-4360 running!

https://youtu.be/zBMsdXGOm5A
H
:cheers:

[Jagdpanzer]

Approximately 18,700 PW R-4360 engines were built. According to Wikipedia these are the planes it powered:
Aero Spacelines Mini Guppy
Aero Spacelines Pregnant Guppy
Boeing 377 Stratocruiser
Boeing B-50 Superfortress
Boeing C-97 Stratofreighter
Boeing KC-97 Stratofreighter
Boeing XF8B
Boeing XB-44 Superfortress
Convair B-36
Convair XC-99
Curtiss XBTC
Douglas C-74 Globemaster
Douglas C-124 Globemaster II
Douglas TB2D Skypirate
Fairchild C-119 Flying Boxcar
Fairchild XC-120 Packplane
Goodyear F2G Corsair
Hughes H-4 Hercules ("Spruce Goose")
Hughes XF-11
Lockheed R6V Constitution
Martin AM Mauler
Martin JRM Mars
Martin P4M Mercator
Northrop YB-35
Republic XP-72
Republic XF-12 Rainbow
SNCASE SE-2010 Armagnac
Vultee XA-41

[XfireZ51]

After further googling the concensus appears to be that it's a mock up. Probably never ran. The biggest and last production radial engines P&W ever produced were the "corncob" 28 cylinder R-4360's. Cooling, fuel economy and the development of the jet engine killed it.
H
:cheers:

I can't imagine why u would choose a jet over this!

[Ccmano]

Maybe the turbo version would be better...[-X
H

http://a65.tinypic.com/2gtooxe.jpg

[tf95ZR1]

Pass CA smog?

[jss06c6]

Maybe the turbo version would be better...[-X
H

http://a65.tinypic.com/2gtooxe.jpg
Hans, thanks for these Pics! Engine builders always amaze. This one gives you a great view of their exhaust setup with the turbocharger. Incredibly cool stuff[emoji14]

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[BigJohn]

Need a trailer to haul it...;)

http://a66.tinypic.com/1e82mo.jpg

Cool, where is the rest of the B-29?

[efnfast]

My son in law says Pratt no longer supports this engine.

[Ccmano]

To me the amazing part is that this is 1940's technology! At the same display they had a cutaway of a basic P&W radial engine. The supercharger was actually integral with the block (if you can call it that) with variable boost controlled via its own gear set. In other words the supercharger speed could be shifted like a manual transmission. Cool stuff...
H
:cheers:

[Mystic ZR-1]

Turbocharged AND supercharged!
Not to mention thrust from the exhaust!
😋

[Jagdpanzer]

Compound turbocharger mechanicaly connected to the crankshaft output.

[Mystic ZR-1]

Compound turbocharger mechanicaly connected to the crankshaft output.

Next step, jet engine! aka: gas generator.
The piston engine is acting as a gas generator
to run the turbo which helps power the engine's
output shaft (not to mention the thrust factor,
wonder how much that added?)
Not a turbocharger in the way many
think of it...

[Jagdpanzer]

Like invisioned for the P&W R-4360 51VDT prototype which attempted the concept of using the piston engine as a gas generator in conjunction with a combination turbocharging/thrust producing gas turbine
http://atomictoasters.com/2012/12/piston-engine-last-gasp/

[jss06c6]

Hey if you can get one into a VW, we can get a bigger one into a ZR-1!
https://m.youtube.com/watch?v=yGeSIM_8BHY


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