Into F1 like me? watch this vid; F1 engine run

[Stevie]

Unbelieveable

http://video.google.com/videoplay?do...=arrows+engine

[ger21]

It's running a little warm I think. Pretty cool.

[Stevie]

Arrows have been gone for quite some time; so this is a fairly old video; so the latest gen motors must run even hotter; they can hit 20,000rpm now

[jmytyk]

this is so incredibly cool... random infor about F1- 19,000 rpm's is an amazing number for the v8's this year, if this was from last year, 20-21k rpm's was the range for the v10's. 900hp from a naturally aspirated engine displacing 3 liters

-- i want to see nascar do that ha!

[Stevie]

actually I watched the incar from the last race; the rev counters on most hit 19500 quite a bit
Cosworth are quoting 20,000 already from their V8

Anyone got a set of plans; I'd love to make a 1/4scale; wow; with my machines it would not be too tough; still I'd limit my rpm's to say 10,000 LOL

[jmytyk]

any idea how to build the pneumatic valve train?? i understand everything else...

too bad so many blew up in last race...

[Stevie]

Originally Posted by jmytyk any idea how to build the pneumatic valve train?? i understand everything else... too bad so many blew up in last race...

I think they still use camshafts; the valve are closed by air pressure; the spring bounce was always the limiting factor in engin design;course they could open them with pressure too; it's all secret of course; I have seen a few pics of the outside of an engine; but never the inside; a cut away would be great to see

I think I'll try to design a V10 in CAD; I was bored once and did a small V6; but never finished it to a point where i could have built it; I did have overhead cams; 4 valves per cyl etc in the CAD file; but i re-formated and it's gonedee
If I used a 50mm stroke and 68-70mm bore it would be close to the current style of short stoke engines used; I remember Honda experimenting with oval pistons to get 6 valves in there!! but it created more problems than it solved

[ger21]

Stevie, did you ever go watch F1 in Detroit back in the 80's? I used to go every year until they left. Those were the days. 1500HP from those 1.5L turbos!!

[garagefela]

I must be a Sadist, I was really hoping for that engine to kick a leg out of bed.
That would have made a few people scatter!!

Cheers all. M

[Stevie]

Hi Jerry

Nope I was living in Calgary then; but watching Eddie Cheaver getting wheel spin under the overpass in 6th gear was spine-chilling

[Stevie]

Cut and paste from Formula1.com tech info


The engine and transmission of a modern Formula One car are some of the most highly stressed pieces of machinery on the planet, and the competition to have the most power on the grid is still intense. Traditionally, the development of racing engines has always held to the dictum of the great automotive engineer Ferdinand Porsche that the perfect race car crosses the finish line in first place and then falls to pieces. Although this is no longer strictly true - regulations now require engines to last more than one race weekend - designing modern Formula One engines remains a balancing act between the power that can be extracted and the need for just enough durability.

Engine power outputs in Formula One racing are also a fascinating insight into how far the sport has moved on. In the 1950s Formula One cars were managing specific power outputs of around 100 bhp / litre (about what a modern 'performance' road car can manage now). That figure rose steadily until the arrival of the 'turbo age' of 1.5 litre turbo engines, some of which were producing anything up to 750 bhp / litre. Then, once the sport returned to normal aspiration in 1989 that figure fell back, before steadily rising again. The 'power battle' of the last few years saw outputs creep back towards the 1000 bhp barrier, some teams producing more than 300 bhp / litre in 2005, the final year of 3 litre V10 engines. From 2006, the regulations require the use of 2.4 litre V8 engines, with power outputs likely to fall around 20 percent.

Revving to over 19,000 RPM a modern Formula One engine will consume a phenomenal 650 litres of air every second, with race fuel consumption typically around the 75 l/100 km (4 mpg) mark. Revving at such massive speeds equates to an accelerative force on the pistons of nearly 9000 times gravity. Unsurprisingly, engine failure remains one of the most common causes of retirement in races.

Modern Formula One engines owe little except their fundamental design of cylinders, pistons and valves to road-car engines. The engine is a stressed component within the car, bolting to the carbonfibre 'tub' and having the transmission and rear suspension bolted to it in turn. Therefore it has to be enormously strong. A conflicting demand is that it should be light, compact and with its mass in as low a position as possible, to help reduce the car's centre of gravity and to enable the height of rear bodywork to be minimised.

The gearboxes of modern Formula One cars are now highly automated with drivers selecting gears via paddles fitted behind the steering wheel. The 'sequential' gearboxes used are very similar in principle to those of motorbikes, allowing gearchanges to be made far faster than with the traditional ‘H’ gate selector, with the gearbox selectors operated electrically. Despite such high levels of technology, fully automatic transmission systems, and gearbox-related wizardry such as launch control, are illegal - a measure designed to keep costs down and place more emphasis on driver skill.

Transmissions bolt directly to the back of the engine and incorporate a torque-biasing differential that works in conjunction with the electronic traction control systems to ensure the maximum amount of power is applied to the road. After several years of six-speed gearboxes, most of the grid are now running seven-speed units.

http://www.formula1.com/insight/tech...fo/11/468.html
all aspects of F1 can be viewed here

[ynneb]

What about the hero in there who was too cool to put his fingers in his ears.

I must be a Sadist, I was really hoping for that engine to kick a leg out of bed.

Yeh and you go to the races to see the crashes, and football to see the fights......( Like me)