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Re:F1 Engine Power Secrets (2000) by eftpotrm on Friday February 11, 2011 @05:05PM (#2208351)
F1 anorak - that article is years out of date. You can tell that anyway from the tech but when it starts talking about the new ruling for 2001....

Much of the core technology isn't that different, significantly because they first restricted and then effectively froze development a few years ago, but the engines aren't 3l V10s any more but 2.4l V8s.

In the time of the 3l V10s, from memory they peaked at over 900bhp. For a while they were revving to about 19,000, but as the materials science for this got increasingly complex they restricted it to about 17,000 on cost grounds - after all there's no real sporting value to everyone spending an extra $50m to get to exactly the same relative performances with little noticeable difference in outcomes.

The 2.4l V8s were about 750ish from memory when they came in; I've not heard more recent figures but due to development restrictions I doubt they're much different. The other interesting technology now is the extra hybrid power source and the large kick that can offer; interestingly it was very nearly raced (in a different form) by McLaren in 1998, though a late rule change that was suspected to be at the behest of another team banned it.

Otherwise - the core reason the engines are recognisable is that they're required in the rules to be so. Turbos were restricted then banned in 1998 after, at the design peak in 1986, reaching 1500bhp from 1.5l engines. They're quite likely to be back in a few years though, albeit in a very different form to their mid-80s incarnation. Turbines - what I suspect we'd actually be running otherwise, although indirectly as electric generators for capacitor packs - were banned even earlier. I don't think Wankel engines have ever been legal in F1. Diesel definitely isn't.

When we say recognisable though, I'm not sure people realise just how alien these engines are within the limits of a piston engine. They barely do anything below what would be red-line revs for a road car and generate almost no power until they're past 12-13,000RPM. Piston speeds are firmly supersonic and the elasticity of the metal needs to be factored in, yet I read once that the pistons were getting so close to the tops of the cylinder heads in combustion that there was a visible ring of clear metal in the combustion deposits because there wasn't space there for the deposits to form. The real shock though is the noise; we're all used to what a road performance engine sounds like, but a 17,000RPM V8 (and even more so a 19,000RPM V10) howls and screams like no road engine you'll ever hear, bike included. Animalistic, harsh, edgy and the sort of sound that lives with you; TV doesn't come close to capturing it.

Re:F1 Engine Power Secrets (2000) by mpakes on Friday February 11, 2011 @05:37PM (#2208463)
Regarding the recognizability of the engine technology - it's fascinating to know how much materials science technology has filtered down from F1 into road-going cars.

The high-revving (9000RPM) F20C1 Inline-4 from the Honda S2000 has a peak piston speed that matches the highest-revving F1 engines at 25 m/s. The BMW S54B32 Inline-6 from the E46 M3 nearly matches the naturally-aspirated efficiency of F1 engines, at 14.3 bar mean-effective pressure (MEP).

We can also thank F1 and similar racing series for composite cylinder liners, titanium valve springs, hydraulically actuated cams (e.g. BMW's Double-VANOS), hydraulically actuated clutches (e.g. BMW's Sequential Manual Gearbox), dual-clutch transmissions (e.g. Audi and BMW Dual-Sequential Gearboxes), ceramic-composite brake rotors (e.g. Porsche PCCB), direct port fuel injection, etc.

Re:F1 Engine Power Secrets (2000) by mellinwood on Friday February 11, 2011 @07:48PM (#2208859)
Here, here. It's a joy to see the technological advancement from the race teams trickle into road cars through the years. BMW's current M3 V8 was once manufactured on the same floor as their F1 V8s.

This is also one of the big losses we every-day drivers will suffer as a result of BMW, Honda, Toyota, etc., abandoning the sport.

Re:F1 Engine Power Secrets (2000) by ZoFreX on Friday February 11, 2011 @08:24PM (#2208943)
It's "hear, hear" by the way :)
Re:F1 Engine Power Secrets (2000) by CWuestefeld on Friday February 11, 2011 @05:14PM (#2208390)
The real shock though is the noise;

I've been to one F1 race, sitting at turn 1 in Shanghai. There was a TV helicopter maybe 50 meters over our heads -- and its noise was completely drowned out by the cars' engines.

Re:F1 Engine Power Secrets (2000) by dcminter on Friday February 11, 2011 @09:09PM (#2209039)
The thing that impressed me most at an F1 race was that the gear changes - a barely audible deep pop-pop-popping noise on TV - on corners could be physically felt in your chest. Until the second and subsequent cars went past I thought an engine component had catastrophically exploded!
Re:F1 Engine Power Secrets (2000) by klinquist on Friday February 11, 2011 @05:51PM (#2208518)
Indeed. At the French Grand Prix (Magny-Cours) in 2002... I was 10th row off of the front straight. I was trying to shove napkins in my ears.

Any F1 fans should download the UK Top Gear season 15 episode 5 and watch the last 15 minutes - a short tribute to Ayrton Senna. It's tremendous.

Re:F1 Engine Power Secrets (2000) by trafficlight on Saturday February 12, 2011 @12:38AM (#2209406)
Series 10 episode 8 is also a good one. Richard Hammond gets to drive a Renault R25, circa 2005. He had a hell of a time even getting the thing onto the track. The pit crew actually had to tow the car back to the garage to warm it back up; the tolerances on those motors are so tight that, when cold, they are effectively seized.
Re:F1 Engine Power Secrets (2000) by eftpotrm on Saturday February 12, 2011 @04:56AM (#2209742)
Thinking Renault engines...

Around that period they had the central display at the Goodwood Festival of Speed. Clearly their engine management shop had been bored one day, because they'd written a test programme which enabled them to play tunes on the engine just by revving it, and were showing off for the assembled crowds. It's honestly that fast revving and high pitched that it could do a pretty decent job.

http://www.youtube.com/watch?v=7XR7OpM2Ufk

http://www.youtube.com/watch?v=8aArSn4IhHI

Re:F1 Engine Power Secrets (2000) by zandor on Friday February 11, 2011 @07:18PM (#2208785)
I'm sure this Shell and Ferrari commercial doesn't even come close to the real life experience. Still, what a soundtrack it is.

http://www.youtube.com/watch?v=v6gcwIt5nSM

Re:F1 Engine Power Secrets (2000) by eftpotrm on Saturday February 12, 2011 @06:18AM (#2209831)
I note in the interests of the soundtrack they skipped the 80s turbo cars completely! No bad thing though; they were spectacular performers but not spectacular noises, to me at least.

I'm fairly sure I've seen all the cars they had in the advert running in person. What it's really lacking is the physicality, unsurprisingly; the pops and cracks of the overrun, the way the howl of even the older engines just reverberates and I think must have some key harmonics that are out of the range this reproduces, the guttural roar of the engine at low (for it) revs just shaking the world as it brings everything together.

Think of the difference between an orchestral recording and hearing the orchestra in person. Now give it the power of Metallica in concert. Welcome to live F1 engines.

Re:F1 Engine Power Secrets (2000) by jcfrei on Friday February 11, 2011 @06:59PM (#2208732)
there's nothing quite like hearing an f1 engine scream.
Re:F1 Engine Power Secrets (2000) by regomodo on Friday February 11, 2011 @07:27PM (#2208808)
How does 600BHP from 1.5L in 1951 sound? http://en.wikipedia.org/wiki/British_Racing_Motors_V16
Re:F1 Engine Power Secrets (2000) by eftpotrm on Saturday February 12, 2011 @04:48AM (#2209734)
Supercharged, unreliable, unsuccessful sadly.

Other early very high power engines:

http://en.wikipedia.org/wiki/Novi_engine - 1941 450bhp to 1966 840bhp, equally unsuccessful

http://en.wikipedia.org/wiki/Mercedes-Benz_W125 - 1937 600bhp, championship winner

Re:F1 Engine Power Secrets (2000) by regomodo on Monday February 14, 2011 @05:15AM (#2216200)
Well, controlling 16 sparkplugs with a mechanical distributor at that rpm was always going to lead to timing issues. That much power from such a little engine, when it did work, is amazing to me.
Re:F1 Engine Power Secrets (2000) by zwadia on Saturday February 12, 2011 @12:42AM (#2209412)
3.5L V10 moving to 3.0L V10s to 2.4L V8s now.

Sound of an F1 engine is truly amazing. Just as awesome are the down-shifts. 7th to 3rd.