What is the best engine
 

I don't mean for a family sedan. I'm production sports car enginers.

If you had some crazy supercar sitting around with no engine, what would you plunk in there?

Ls2

It really depends on preference and what kind of car you're driving. In my opinion, since it holds up so well to boost, the 2JZ-GTE, from the Toyota Supra/Lexus IS300. People hit 1500 hp with them. Some people prefer different kinds of engines, the LS2 is awesome, many here would say a rotary. This mostly depends on pure preference though.

rb26dett for me

I would tend to vote on the...
 

...motor I thought elevated technology, engineering and design to the next level. For my money, it would be the 5.7 liter V-10 of the Porsche Carrera GT. IMO, outside of Formula 1, there is no motor out there right now that combines as much technology and design-thought that this one does.

The Merecedes Twin turbo V12 is sorta nice, those guys at AMG are insane and I love them for it! :)

I was thinkng the same thing. That engine is a brute!

I will be interested in seeing the mods available for the new M5 engine, that could be another contender.

How can you go wrong with the 8.3L V-10 in the VIPER...

But, I would go with the Vette engine also...

power of 4 rotor will be nice with a quad turbo for each rotor:)

The Porsche Carrera GT engine. I heard it light up once, it was like sex coming out of it's tailpipes. The only time the hairs on the back of my neck stood up. Guy drove it a few laps, it truly sounded like a race car.

Rotary, period.

If I had a car sitting around that just wanted an engine under the hood I would most probably get a 427 supercharged engine from Shelby. Light enough for me and pushing out around 750 hp. Not sure about the torque though. Either that or the import favorite 2jz-gte. If the car was built for track use I would put in a 20b rotary with a little forced induction. There are too many good choices depending on the application. Maybe you could give us a type of crazy supercar that's just sitting around and we could come up with some answers. Simply stating that it is a supercar leaves the door open to interpretation about what a supercar is.

For sheer engineering, I would pick ........... the S2K 2.0L motor.
What other production NA piston engine gives you that much hp from such a small displacement?

General Electric F110-GE-100/129 good for 27000lbs of thrust.

thats right its a jet turbine with afterburner :)

I'll go with the new Ferrari F430's engine for pure technological brilliance. After that, I have to agree with Nojooc on the S2000's engine. However, I have to admit that Honda is the only company who at any time if they choose to and at the snap of a finger can trump Ferrari's engines. But we all know Honda has changed somewhat from the good ol' days and is now focusing on increasing volume and products in a difficult effort to chase Toyota.

the VQ35 :)

GM LS2...would be my first pick at the moment, but if that is too much displacement for the given application, then I'll go with Mitsubishi's Evo engine (can't remember designation code).

Possibly a Renesis variant to replace the Evo, all depends on how the engine develops over the coming years and what can be done with it.

bentleys new f1 motor made of carbon fiber. yah i would have to get a reaserch team to make the gas for me. but its worth the 5 grand a week

Interesting read from HKS that at about 375 whp it needs some engine strengthening (rods & rod bearings). They said they could get more than 400 whp with their system, fuel management, headers & exhaust but that the engine would fail.

If it has to be the rotary, then how about the 3 rotor 20B ? RX Tuner had a few that were putting out 450-600 whp. NICE

I'd also take a look at the race car engines honda makes. I saw a few weeks ago a 3.5 v8 pushing 700hp n/a. Honda is really the only company I see capable of trumping Ferrari's prestige, but you're right, they're chasing Toyota at the moment. They are genius', VTEC is one of the biggest breakthroughs, and a lot of companies have since made their only similar system, but none come close to what Honda has produced.

Both Rover and BMW have surpassed Honda's valve actuation technology.

Until the LS7 is released in the coming months. :D

We can't get too far ahead of ourselves, but yeah, that does replace the LS2. Heard rumors of 500bhp, but we shall see.

And BMW's Vanos technology is every bit as good as Honda's.

Depends on the application. For example, I would take a Renesis-equipped Elise over a V-anything.

good question!!! but it's not ideal world guys.!! so... the very first question is .. is the engine we gonna put fit in the car or not..!! and the 2 qustion is.. do we have those money to purchase the "fantasy" ok .!! but if I have a car like ..!!!!! nsx.. sweet..!! yeah.. then I would put a 26b in there..!!!!! yea..!!!! that would be hell sweet..