How Could It Possibly??! THE WORLD'S MOST POTENT V8 ENGINE

The 44 amps that the mags develop is NOT SENT TO THE PLUGS, it's the primary current generated. The ignition coil they use develops approximately 50k volts and over one amp to the plugs....On the clutch, the engagement is controlled by a "cannon", which is pneumatically controlled to allow the clutch fingers to apply in stages. There isn't enough traction to allow full clutch engagement so it's allowed to slip during the first part of the run, and is very carefully controlled to help manage the power and get the car down the track. The fuel system has more than one injector as well. There is usually 8-10 injectors in the hat on top of the blower, 1-2 in the intake port of the blower manifold, and another injector or two in the head directly above the intake valve. The actual design of these engines hasn't changed since the Chrysler Hemi was first introduced, it's only been refined to make and live under the power it develops with these combos. They are rules limited to 500 cubic inches, and also rpm limited now as well. Two spark plugs are used simply because one will not light the mixture. It's very common for them to lose a cylinder because the plugs failed. Just watch for liquid fuel coming out the exhaust....and the car will push to the direction of the side of the car that the cylinder isn't firing. The exhaust actually develops about another 7500 lbs of down force to help hold the car to the track, and the zoomies are angled to maximize that. They were putting more angle on them to help the car accelerate as well, but the NHRA limited the angles of the pipes to stop this....there is a lot more to these cars than most realize....

Top fuel dragster’s use this particular engine “formula” is because that’s the rules, if there wasn’t any rules I guarantee you these engines would be beyond insane

This isn't from an expert. Eg. top fuel dragsters use a LOW compression ratio. That's done because the supercharger is overdriven giving high boost, so the actual compressing pressure is at it's upper limit, with maximum amount of fuel mixture packed into the cylinders.

There is nothing else like feeling these machines in person!

It seems that people who made comments know more about nitro burning Hemi engines than stated by the narrator. Comments about misinformation are correct. I'm no expert but even I noticed errors before reading the comments left by others.

I've heard that if a top fuel dragster was idling at the end of turn 4 at the Indianapolis 500 track, and an Indy car came by at 220 mph, the dragster could launch as it passed from a dead stop and beat the Indy car to the quarter mile mark. Now THAT'S some acceleration....😬🤯

I’ve never heard so much misinformation in 10 minutes before.

Twin plugs are to maximize flame spread speed with the very rich mixtures - not simply redundancy.

The cross-plan crank makes the engine smoother, it doesn't increase performance. It's used because a flat plan crank has inherent secondary inballance(pistons move faster on the top half of each stroke, than bottom half), as with a 4-cylinder engine. It maybe necessary at this level of power and torque. A flat plan crank, saves weight, but has more vibrations.

why not talk about the super charger right on top of the engine?

ALL Top Fuel and Funny car engines are based on the Chrysler Hemi

No coils on top fuel - they run magnetos.

I've been told by an ex nitro engine mechanic that with a 4 valve head he severely doubted that the wall between the two exhaust valves wouldn't melt from the heat.

Another interesting fact is we refrigerate our fuel down to around 40 degrees

Compression ratio is only 6.0: 1

Welcome to the modern era, where anyone can make videos and claim anything to be true and nobody does anything about it. RIP Truth

Another thing not taken into consideration is R.P.M. ..... although it mite be a 7,000 R.P.M. engine, they are not even turning 750 Revolutions thru the whole process from start-up to shutdown !! Amazing !! 🤔

From what I've read, several points were missed. One advantage of the dual valve HEMI head is the huge airflow it allows. Another advantage of dual plugs is the rearmost plug helps ignite the fuel mixture during the high G loads that push the fuel to the back of the cylinders. One other topic completely missed is the supercharger, belt driven and needed to force the massive amount of air/fuel mixture into the cylinders. It takes 500HP just to drive the supercharger itself. The whole engine is surrounded by explosion blankets to help prevent shrapnel if one goes boom during a run. Lastly the tires on the prepped surface stick so well the torque literally rips the tire off the surface, twisting the rim as it goes down the track at 5 G's acceleration. Now put 4 of the dragsters side by side at the Charlotte 4 Wide Nationals and you have a 50,000HP fast moving earthquake watching from the stands! A most incredible experience.

It astounds me at how much fuel goes into the combustion chamber. It looked to me like it was practically poured in.

You forgot to mention the BIG AIR PUMP on top ya know the Supercharger…???