I love the sound this engine makes. The guy with the Bowler hat is the owner, Chris Williams. He also owns the Napier-Bentley, another beautiful aero-engined car. I've read somewhere that Mavis put out something like 2700 Nm of torque. Just insane.
You're right! Yes, I've counted the exhausts but not only... I thaught 42l engine displacement is too much for "only" V12. But You're absolutely right: It's a V12. It's a twin-port design engine,that's why it has 24 exhausts for 12 cylinders. Thanks for the correction.
Amazing restoration! Like some of the other commentators, I counted 24 exhaust pipes, making it either a V-24 or two inline 12s. Either way, it sounds marvelous; at speed it sounded exactly like an aircraft. Given the apparent overheating or blown hose, it doesn't like to stand around idling. Hope it wasn't serious, as you can't just run down to the NAPA store and pick up parts for this one!
Lovely bit of kit!. Wouldn't want to have to fill it up at todays fuel prices the way it uses fuel!. 🤣 Lovely sound, great to see old bits of kit like this being used and not sitting gathering dust in some museum!.
Josh LaDue noo, well, thats what i was thinking as well, but its not a V24.. this specific type of engine has 2exhaust ports on each cilinder, so that makes it a V12 :) .. have a nice weekend
TheMaauw I thought this was the Packard-built version of the Rolls Royce Merlin as used in the P-51 Mustang after the original engine proved to be underpowered..
I think you need to check your facts, old chap. We paid for everything you sold us, which made the US very rich and you only joined the war, when you were attacked by a tiny little country across the Pacific, whom you had been putting economic pressure on.
+Lotusrk123 You are correct. The Allison V-1710 had a single-stage supercharger that made it inadequate for high-altitude flight. Lockheed overcame this by adding turbochargers to the P-38 Lightning. The RR Merlin V-1650 had a two-stage supercharger that shifted into high gear at 15,000 feet. This was what made the P-51 a great bomber escort. The 42-liter Packard lump in the video actually saw service in the U.S. Navy's PT boats during the war.
wasuprobleemjoh One of the basic law of enginearing is that as higher the HP goes the torque gets lower till a specific point which their scale gets equal ...So this thing is 42k cc with 1500hp about ...Seriously its torque is HUGE ..more than u can imagine !!! And the use of each one is like ,Hp determines where u will go (i mean in km/h,top speed) and torque how fast you gonna reach that ...
Salgadinho Gr thats not even a law lol. www.google.be/search?q=torque+power+graph&newwindow=1&espv=2&source=lnms&tbm=isch&sa=X&ei=-P--U4SjHtLA7AawhoAw&ved=0CAgQ_AUoAQ&biw=1600&bih=799 like i said, its just torque * revolutions = power. for example as it has its 1500hp at 2000 rpm, torque at that specific point is 5500Nm, if it has it at 8000rpm it got 1400Nm at that point, giving the same power and so the same results. so please stop talking about it like its 2 seperate things... i study electro-mechanics okey, had to study this shit like hell for last exams
Salgadinho Gr How fast you will reach a speed is determined by HP, no matter what, torque is not a actual measurement to measure performance or power, it can and will only be measured in hp. However, torque can help you identify how a engine behaves, never the power output. a car has 1000 hp however it has 525.5 lb/ft of torque. Another got 1000 hp, however it has 5250 lb/ft of torque. Who accelerates quicker? neither, given engine weight, engine power, and gears are properly set up, neither will accelerate quicker than the other. One will have 1000 rpm as top rpm. Other will have 10000 Torque is nothing we directly measure, power output is, and how we calculate torque is by math, nothing but math and is not directly measurable. Higher rpm engines will have lower torque for same power. Turbo increases torque as rpm does not increase, but efficiency increases
Road2Perfection this is an incorrect comparison, torque refers to the brute force of the motor, horsepower is how fast that brute force can move, torque wins races, horsepower does nothing for you when starting from a stop. That is why diesel trucks can keep up with lots of cars from a stop. The truck can be carrying a full load and still do the same performance every time, because horsepower is meaningless without torque, and horsepower is not measured in workload applications because it is meaningless.
Wyowanderer Not at all as that engine had NOTHING to do with the shitfire !!! It is from a US Navy PT Boat and is 100% Packard design and production !!! Has NOTHING to do with the 50% SMALLER merlin !!! DUUUUHHHHH!!!!!!!
@@wilburfinnigan2142 Wow, what an arrogant shit you still are, even 5 years later. He just said it sounds *a bit LIKE* a Spitfire. You just read a few sentences on Wikipedia and now you're acting like some sort of god, that know everything about engines in this comment section
Mat W no it does not, the engine was Based on an aircraft design but was purpose designed and built for PT Boats and the valves are all enclosed under that "Valve cover" that says "PACKARD" on it Google Packard PT Boat engine and learn and here on You Tube there are several videos of the engine CLEARLY showing ALL the details, and the engine weighed 2900 lbs kinda heavy for a airplane...don't Cha think ????
Matt W The PACKARD BENTLEY.. has a PACKARD 4M 2500 PT BOAT engine....the BRUTUS has an older BMW plane engine in it....you can see picture and read the description right here on You Tube.....IF You do the research....NOT "the same engine....
Joaquín Farias This. It's not unheard of even in relatively common passenger cars - Peugeot 405 Mi16 has an exhaust manifold which starts as 8 pipes, even it's a 4-banger engine.
Fun fact. THIS engine model, the 4M-2500, was used for PT boats, but the engine it is based off of, the Packard 1A-2500 was designed for aircraft. There were a 3 versions designed for marine use, and 5 versions designed for aircraft. Saying that this engine was "purpose built" for PT boats is technically not true. But who gives a shit about facts when you are to busy showing off to everybody how much of an asshole you are.
OK, thank you and sorry for my basic technical english. I noticed the two heads very separated for my opinion. Now I understood about the two exhaust ports per cylinder, I don`t have to think there are twelve but six each side. I´ve already read some information and see it`s a beautifull engine. Thanks again.
And in 5 to 10 years when you fiesta is scraped this car will still be doing 150 kph............Cars were built back then to last forever you fiesta will be nothing more than scrap parts to be melted down for the next fiesta.
I think, with a 42 Liter engine, it's pretty hard to make any less Hp .. I mean.. That engine is just Soo huge, it automatically produces a lot of Hp! They use So many fuel, which contains a lot of energy.. You cant just 'get rid' of all that energy when you detonate it..
Armouredfalcon That engine Had NOTHING to do with any shitfire !!! It is Packards own design/production PT Boat engine for the US Navy !!!! DUUUHH!!!!!
People....watch the video BEFORE going to comment section and making stupid comments. The engine is a V12 designed by Packard for the US Navy for use in PT Boats. It is their own design not relate to the Merlin or Allison and was NEVER used in any plane, not Spitfire Hurricane or Mustang enjoy the video.....
Thanks Wilbur I actually discovered this as an aviation forum I belong to had someone mention PT boats which had me do a bit of googling.. So to echo your post YOU ARE TOTALLY RIGHT!
Well, what a Sportsman ! it's a real treat to see this - back to the "Heroic" days of motoring at last - i'd love to take this (Mr Toad like) onto the Open Road and take the paint orf some little chap's Austin Seven
