i know this isnt advanced tech material, but i thought that since F1 stuff is discussed here alot i would post this for some to see.

i like how the gas is injected into the motor...never really seen anything like that before!

right click/save as

 

that is some down shifting right there. it sounds like they put load on the engine so i guess they're testing reliablity?
BTW does anyone know how much those guys get paid?
http://scarbsf1.com/BMW_P83/
and to keep this from being a vid post check out the variations for the rotors
http://scarbsf1.com/scarbsF1-2002/weda0082.jpg
http://scarbsf1.com/scarbsF1-2002/tuea0012.jpg
http://scarbsf1.com/scarbsF1-2002/weda0050.jpg

 

Neat video. I hadn't heen that before. Thanks.

It's a dyno run programmed to simulate a particular track. Good chance it is a durability test if the engine and drivetrain. I'm surprised that there is no airbox being used. Some teams actually have a dyno under a windtunnel so that they can put the airbox in the tunnel to duplicate track airflow into the engine. (Ferrari)

Those BMW P83 specs can be used to calculate bore, stroke and rod length of that engine.

 

I've seen it before, but it's pretty cool. What's amazing is that the technology is not revolutionary, just evolutionary. Any gearhead could take that motor apart and put it back together. The coolest image is the condensation over the intake horns, if that's what it is. Can anyone explain what exactly is going on there?

Rich

 

and people say that "TBI" fuel injection sucks

 

my best guess is its sucking air so hard, its actually stretching/expanding it and coolng it (think opposite of forced induction). thats just a guess though.

intake runners have condensation on a lot of very hi-perf motors

 

I believe that in order to be a "TBI" system, the throttle body and injectors have to feed more than one cylinder. This is more akin to a "TPI" or more correctly an "MPI" which covers all these types.
I haven't seen this before and must admit I'm surprised that the injectors are above the throttle plates. Also that hey're using a single injector manifold for all ten cylinders. The exhaust appears to be a "tri-y" type and the primaries are a lot longer then I would have expected.
With the new engine requirements for next year you'll probably be seeing a lot more technical info on these V10's.

 

That was badass

You can't tell from that video, but the intake "trumpets" as they call them vary in height with rpm to alter the torque curve.

 

Thoughts:

I'm not sure that there are any throttle plates. If there are, perhaps they are only used for low rpm putting around, and are wide open under full power from maybe 12,000 to 18-19,000. BMW 7 series doesn't use throttle plates. If you can control the valve lift and/or timing, you can "throttle" the engine that way in the power band.

They are not tri-y headers. They are 5 into 1 with cylinders probably entering the collector arranged in firing order to get a vortex in the collector which might help control spanwise flow under the wing where the collectors dump.
Look at the size of the collector compared to the primaries. There's got to be some real velocity at the output of the collector.

Primaries are quite large for a 300 cc cylinder, like maybe 60 mm (2-3/8) with steps. Of course each cylinder is producing 85 hp or more which is like a 680-700 hp V8.

My guess is that we won't be seeing much of the nitty gritty tech info on F1 engines. Shoot, how many valves are they using? I'd REALLY like to know valve timing and flow numbers. How about piston mass? Maybe under 200 gms with a piston the diameter of a 5.7 LS1?

If they go to 2.4L in '06 or ?, my guess is that most will stay with 300 cc cylinders. Some might go to 240 cc and 10 cylinders to get more rpm, but maybe not. That's what makes it so interesting.

Just my $.02.

 

[QUOTE=OldSStroker]Neat video. I hadn't heen that before. Thanks.

Some teams actually have a dyno under a windtunnel so that they can put the airbox in the tunnel to duplicate track airflow into the engine. (Ferrari)
QUOTE]
WITH $800,000,000, THERE ISN'T MUCH YOU DONT DO!

 

Wow that was awesome!!


I think that's atomized fuel from the injectors you see there.

On another note, whay can't I save this video?

Edit: Wouldn't save with Firefox, worked with IE.

 

no clue why you cant save it..

i didnt think this would go over so well in here...figured it would be moved to the lounge or something!

 

the inconel headers are beautiful!!

http://www.burnsstainless.com/TechAr...ri_inconel.jpg

 

.....and about 2-3 times more $$$$$. But then again if you can save the weight there in the pipes you can put it someplace else.

F1 guys have had qualifing headers that couldn't go more than 2 laps in anger because they were so thin walled. Now NASCAR boys have Inconel headers which can are much thinner but my god are they $$$$$ $7,000 for a set of headers?

Same guy in this article is a pretty dam good header guy.

http://www.profabrication.com/

Bret

 

Damn, speed sure costs $$$$. $7,000 headers, holy schiznit! Nice links, thanks Bret (you must also be up early today?). I also like your pithy quotes. The valve spring/canary one is really great.

Rich