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

There is nothing else like feeling these machines in person!

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

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.

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....😬🤯

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.

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

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

No coils on top fuel - they run magnetos.

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?

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

Compression ratio is only 6.0: 1

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.

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

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

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.

Wow, that fuel flow is insane I love it!!

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 !! 🤔

Best V8 engine on the planet, Chrysler engineering.

Overhead valves (instead of overhead cams) are used because the rules dictate it, not because it's better.

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

OHV and 2 valves/cylinder.Oldie but goodie

Very interesting and well explained! Racing has surely been taken to a science.

That fuel delivery volume is insane.

Brilliant. Thanks ❤

9:43 Was hoping you'd show this. Amazing.

thank you I am mechanic and I have learned many things from France

And a fresh engine lasts 1000 feet. Then has to be torn down and rebuilt. Along with the clutch pack. And teams usually only have a couple of hours to do this.

nice vidéo tank et merci bien and now is 341 MPH just for 1000 feet.....

Forget the engine, that transmission is wild😂🤯

Great Video!

That's some next level fuel consumption!

The record is now over 341.68 mph. If there weren’t gearing limits to limit top speed we would regularly see 340-350 mph. 300 mph has already been done in the 1/8 mile.

The only thing faster than these engines is the way our Government spends our tax dollars. The Government needs to hydro lock soon.

You should go into detail on the blower (screw compressor) configuration. There is very little mention of it in the video. It’s a key component of how the engine can generate the power that it does.

How do they reverse after burnout ?? must be a gear box in there somewhere... wonder how that works...

Cross plane crankshaft is mainly so no more than one piston stops at any given time, which means that all combustion timing is spread out equally. Like my Yamaha 😅

How do the heads have a unique aspect of the oiling system. My clevo must be top fuel inspired then

good video...

the model is so good that the mopar cover is backwards.

These engines only use the spark plugs as ignition for a short time. Once the engine is at 100% the plugs have melted into nothing more than a glow plug. The plugs are specifically designed to do this.

Well, you know, the quality of this clip is just plain awful, man. AI voice, aspects of burning and compressing the mix are just brushed aside, typical superficial stuff, you know?

I love my top fuel drag racing engine in my '88 Honda Civic. The fuel mileage is ruff though.

You missed the cannon on the clutch pack..it was good though.

Fun fact they all use Mopar hemi engines. My friend and I are currently experimenting with a 345 hemi by removing a spark plug and installing a direct secondary injector and higher pressure fuel delivery system.

Back in the 80's (I think it was) there was a top fuel guy who asked an engineer at NASA "how can we run sub 5 second passes" and he was told it wasn't actually possible. Now they're running sub 4 seconds!!

The new world record for drag racing is now 341.68 mph set by bob tasca lll

Some serious coil bind there….

Are the coils mentioned magnetos?

No mention of the supercharger?

the fuel rate with throttle open is something else ...

Well, TF Hydro was a spectical! Consistently quicker, though seldom,, faster. Pretty cool vid.

The trouble with car guys is they always know more than anyone haha im one of them!

Is Calypso from twisted metal giving motor spec. Info.?

Beautiful work. I enjoyed this video. All was explained in a simple, yet thoughtfull manner.

Does anyone know if the two cylinder spark plugs are fired simultaneously, or are they staggered by a few milliseconds. Just curious.

There was a rumor of a 3 amp deal with 24 plugs, but NHRA put a stop to that.

Wow thank goodness! there is one 4 wheel vehicle faster than the one's they use with the I. R. S.

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Where you at Clay

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how much is that engine? I wanna put it into my golf gti 😁

Weather it's from a top fuel dragster or a funny car or even a blown hydro it is a Masterpiece of speed and technology.. Gasoline is for washing parts, Alcohol is for drinking and Nitromethane is for racing. Great video.

No multiple overhead cams or variable valve timing. Might as well use all that forced induction to make it two stroke for bonus points and more fun.

i would of thought they would of been dry sumped

Congratulations, you got few things correct 😂

The engine also uses some outdated tech which is required by the association governing the competition, eg. single cam with pushrods, roots rather than screw blower. I'm pretty sure that is done to prevent power and speeds getting too high for the cars to handle.

Some else he got wrong they don't use a wet sump oil system but a dry sump meaning no oil is stored in the oil pan but a tank on board as the oil is pump through the engine it is pump back out out by several pumps back to the oil tank there are several reasons for this just Google it

Fuel cars are limited to the rule book, but as a person who worked in this field when i was younger - its not the engine that is the limited factor, but the safety Safari and fans preventing disaster. fuel cars havent run 1320 feet in a long time, and are limited to 1000 feet. Go spend your weekends at a pro track, and you will soon discover that physics is govering force. tires, air(wind) clutch-slip,and the drivers ability to feather the pedal. The engine itself is capable of more power, but how could it ever be used. In turn, teams and rules are adjusted, so they smoke every motor with a single pass. Take John Force for Example, because what makes him a top teir driver isnt the ability to just floor it when it turns green, but he actualy feels the edge of grip/failure and feathers/rolls the pedal as traction grows. one fact that no one has mentioned in any of these videos, is the sound level of fuel cars. google this, but dig into the results. No one has actually confirmed the ACTUAL sound level of a FUEL car. (its close) Depending on location of measurement, (mid track,60ft,100ft,etc..) its been reported WELL OVER 150dB.

Can you imagine trying to get an EV match this kind of performance..

Top Fuel Dragster: car go fast in straight line

You forgot to mention the Supercharger !!

Oh lord. Where do we start? With the valves! Yes, that's it! A nitro engine uses two valves per cylinder, not because of any advantages over four valves but because that's all the valves that'll fit in the chamber. One big reason they use cam-in-block is this engine is going to be taken apart at least four times a day and installing cam drive on one would simply slow the mechanics down. Nitromethane isn't a monopropellant. It requires air to burn, but less air than, say, methanol does. Nitro engines have two plugs per cylinder for two reasons and neither is redundancy. Because the plugs are offset in the cylinder head, you need two so the flame front in the cylinder goes all the way across the cylinder. And because this engine burns nitromethane which is almost impossible to ignite, you need that much power in the cylinder to get it to light. What makes this engine so powerful? That 14-71 blower bolted to the top of it and feeding nitro into the engine through a length of fire hose.

The clutch " floaters" are steel not titanium 😊😊😊😊😊 the flywheel and the pressure plate or hat are titanium 😊😊😊

I think we have appreciated the cars enough. Let’s talk more about the mentality of the car’s drivers

88 Amps at 50,000 KV? That ain't right. That would be 4.4 MW of power albeit in a very brief pulse. Still not possible without huge capacitor banks for storage. This is just one of other problems in this vid. The trouble with AI.

"Do you think there is something faster than a dragter?" rockets engines : :v

Not too bad for something that was originally designed back in 1905. That others and especially Chrysler refined through the years.

And that ladies and gentlemen is why you shouldn't mess with Americans,I mean we build this stuff for fun, you really don't want to see what we could throw together if we were pissed. Lol, great video

Like the Ford 427 SOHC also called a semi hemi

Nothing on the blower?

How's the mileage? 80 gallons a mile.

I wonder how strong a combustion cycle is. Probably as atrong or stronger than a grenade

american ingenuity

13000 HP, 338MPH, 3.1 on the Ricter Scale

They just moved the air intake scoups 3 feet in the air and, BOOM! instant 10 thousand HP increase. 😅 😂

Thanks for the brain food 😮

Good video ❤ Keep up the good work

I thought those engines were dry sum?? I still think they are.

I wonder if I put it in a challenger

those engine usually need a full rebuild after every run as well dont they?

That blower saps about 400 hp from the crank btw

All good, now let's see an F1 engine. There be magic a foot.

It's now 339.87 mph from Bob Tasca III!!!

You do realize the 2 “high power coils” you mentioned are actually distributors?

Geez, I remember what a big deal it was when Don Garlits finally broke the 250 mph limit! That was almost 50 years ago.

synthetic voice youtube. fucking hell.

Honda guys: My turbo 4 cylinder can smoke your V8 My V8 ⬆️⬆️ 😂😂😂😂😂