Nizer

6.3 litres; 8,900 rpm redline:
http://www.topgear.com/car-news/firs...ady-v12-maniac

fxz

That NA V12 is an amazing beast one of the best NA ever

Car and Driver published
their personal Best Naturally Aspirated Engines of All Time
I don't agree totally with their list there are many others

(it was before the production of Ferrari F12 TDF and missed that Porsche 991 Gt3 piston speed is the same as F458)

btw it's interesting they placed in this order
the best NA

1. Honda S2000 F20C Inline-4
In creating our list-topper, Honda gave itself a 50th birthday present, powered by a screaming 2.0-liter four-cylinder powerplant—code name F20C—that looked and sounded like it belonged in a Formula 1 race car.
developed revs (it had an 8900-rpm redline) and power (240 hp) unheard of in a production engine this size and barely credible from pure racing engines just a decade earlier. The F20C had titanium connecting rods, slivers of cylinder walls, and three levels of variable valve timing.

2. McLaren F1 S70 V-12
This choice is fairly well known, coming out of a collaboration between McLaren and BMW in the early 1990s, and there’s a reason why it’s usually at the top of lists like this. (1993 McLaren F1 engine )

3. Acura Integra Type R B18C5 Inline-4
This one was a real surprise when the numbers panned out, with its accessibility being a key to its high ranking. It shouldn’t have been a surprise, because everybody who drove one of these loved it. I mean, they LOVED it. (1997 Acura Integra Type R engine)

4. BMW E30 M3 Sport Evo Inline-4
So you loved the 1988 E30 M3, right? I mean, who didn’t? Well, I didn’t. It was a nice enough thing with an immensely nimble chassis, but it lacked the last little bit of finesse and zing from the engine that the great ones have. Great ones like the engine fitted to the Sport Evo version of the E30 M3. (1991 BMW M3 Sport Evo)

5. Ferrari 458 V-8
Its revs are astronomical for a relatively sizable (4.5-liter) engine, and it boasts just about the highest average piston speed in production today. It sounds precisely how winning the lottery should feel. The engine, unfortunately, is on its last legs with the introduction of the turbocharged 488GTB, which replaces the 458 line.

6. Toyota 4AGE Inline-4
Sure, the mighty Lexus LFA V-10 had more, well, everything years later, but the long-lived 4AGE democratized more technology, more of the time. Slotted into the engine compartments of front- and rear-wheel-drive small cars, it did wonders for Toyota’s reputation with free-spinning, twin-cam power; good torque; and good fuel economy. (1985 Toyota Corolla GT-S engine)

7. Ford Flathead V-8
Like the Chevy small-block, Ford’s flathead (a.k.a. L-head) V-8 performed far above average in its day. Also like the small-block, the flatty made a similar impact on its era, bringing step-change engineering to the masses. When the flathead turned up in 1932, there wasn’t anything quite like it. It took some brave souls to engineer and market this kind of new, high-performance technology for launch into the teeth of the Depression. Horsepower became available and affordable to legions of folks from hot-rodders to fishermen and bankers to bank robbers. Higher-revving than the much larger V-8s offered by luxury marques such as Cadillac and Lincoln in the early 1930s, the 221-cubic-inch Ford V-8 was rated at 65 horsepower at 3400 rpm. (Henry Ford with 1932 Ford V-8)

8. Chevrolet Small-Block V-8
The Chevy small-block was far more sophisticated than most people realized. It was oversquare with short skirts and a light block. But its real legacy lies in its longevity. More than a million were built in its first year, 1955, and derivatives of the engine cracked the 100-million mark in 2011.

NateOZ

V12 in the AM-RB 001 is being developed with a 11,000 rpm redline as well. Will make for some interesting Astons in 2020 hopefully.

bronson7

That F12 TDF is one of best cars ever. This one is bang on.

997s07

Something tells me that, unless those pistons are made of air, we will see Ferrari type reliabilty issues.

Even Porsche dropped the redline for the 991 RS. Won't get into the current anxiety over the '9000' RPM GT3.

There is a limit to physics for street cars, can't have your cake and eat it too without rebuilding the engine after every track day.

C.J. Ichiban

Because of Ferrari's different piston and crank firing order it's not the same as revving a Porsche engine that high.

Also- the F12 TDF has smaller cylinders and therefore smaller Pistons- the 4.0RS pistons are about 20% larger each.

997s07

Agreed. Quick calculations show the Ferrari having a mean piston speed of about 22.9 m/s, while the 991 RS pistons move at average of 23.9 m/s. Add the additional mass to the RS pistons, and we are in borderline crazy territory.

Since this is a Porsche poll, the Ferrari discussion is a moot point but fun to entertain nonetheless.

What I just learned is that Porsche can make a flat 8 with larger displacement. That certainly would keep piston speeds reasonable and make things reliable. Better yet, make a flat 8 with the same displacement as the 4.0 RS where the redline could be elevated to 10,000 or 10,500 RPM. Now that would be special.

Nizer

Bingo

+1 And move engine/trans forward a la incoming RSR and give it the same body work. Ultimate track-day screamer. Where do I sign?

C.J. Ichiban

Imagine Porsche petitioning the VAG board for the 200M to develop a flat 8. Now, in midst of vw diesel stuff...


Someone would get decapitated.

Nizer

Imagine if Wiedeking had never tried to buy VW

C.J. Ichiban

I know. Ugh.

fxz

true also without someone else leaving Porsche
991.2 baseline without any possible connection to a motorsport engine...

but Porsche buyers are luckily less indulgent when it comes to 911

tqevo

8cyl high revs NA and manual...keep it under 3000 pounds and that's a keeper... the v8 in the 918 sounds great

Nizer

Let's not forget that RUF has already done all the work on a V8 and it's a peach:

https://www.carthrottle.com/post/por...1-ruf-rgt8-v8/

fxz

Great Ruf