Giant engine porn

[JOES66FURY]

can you imagine the sound of this monster running full bore around a race track.

The whole vehicle is freakin" enormous...

[Barry Donovan]

imagine tuning that in to utilize scavenge.

in real life, a giant thumping down the road.. as close as I haver heard was some one off marine 383 in a satellite. could not wind up like a race..sounded like a tugboat. gargantuate.

never heard a gas engine like it since...and it made that satellite chassis as tin canned as an 87 subaru.

I have been right up to a p51, the start, engine winding up. not a war mode for air shows. seems mellow engine.

large stuff just aint out there.

[SuperBuickGuy]

42 liters = 2800 cubic inches.... somehow I seriously doubt that motor is that large.

[Beagle]

42 liters = 2800 cubic inches.... somehow I seriously doubt that motor is that large.

Packard PT Boat engines were 2500 CID, roughly 41 liters.

commonplace assumption, the new-generation Packard marine engine, initially tagged the 4M-2500, was anything but a re-popped Liberty. Instead, Vincent, Packards lead engineer, started with a clean sheet and designed a four-stroke, 60-degree V-12 with an aluminum block with a bore of 6.04 inches and a 6.50-inch stroke, which brought it to 2,490 cubic inches. Weighing 2,900 pounds, the 4M-2500 had four valves per cylinder, a 6.4:1 compression ratio, and a centrifugal supercharger, later models were also fitted with an intercooler. A Holley 1685F aircraft carburetor supplied the fuel, 100-octane gasoline, fired by two spark plugs per cylinder. The first engines developed 1,200hp, but improved versions with higher boost levels nominally made 1,500hp. Packard built 14,000 marine engines during the war, three of which went into each of the Navy's 768 PT boats, two astern and one amidships for better service access. "

see: http://www.hemmings.com/hcc/stories/...feature17.html

You gotta know those boys were hotrodders.

[dulcich]

Wow!! That is terrific. How may cylinders? Is it a 12 with dual ports per, or 24? Thanks for posting, Joe.
-dulcich

[Brian Lohnes]

That is a 12 cylinder PT boat engine in that car. Dual ports, Dulcich!

[TheSilverBuick]

Running a little rich =P

[BKBridges]

Thanks for the low down Beagle. Awesome vehicle.

[oldsman71]

neat stuff!!!

[milner351]

Wow - they made 14,000 of them - I wonder how many others are out there still. Surely some were lost in the war. There's probably some in a government warehouse covered in cosmoline.

[DanStokes]

That is just amazing! I agree that it would be fun to see it at speed on a racetrack. Too bad it's not LSR legal...

Dan

[STINEY]

If my history is correct, the PT boats were basically plywood lightweights with gobs of horsepower and armed to the hilt.

I'm guessing a fair amount of the 14,000 engines are fish habitat today. Of the survivors, another fair amount were probably scrapped for the metals. I imagine these are fairly rare............ although I don't doubt that Indiana Jones stepped on a few in one of those warehouses!

[Deaf Bob]

PT Boat 658 - You Tube

Was the link I got onto... But cannot seem to make it work on here..
It details the resurrection of PT-658 out of Portland OR/Vancouver WA
There is narration, but no closed captioning... Just the video is interesting... The bridge in the background in " on water interviews" is the I-5 bridge between the 2 cities...
Pretty sad pic of how they found it (I am assuming). But so BEAUTIFUL on plane...

[JOES66FURY]

is this it Bob?

[JOES66FURY]