[im_srini]

Wow, cool stuff The pistons & connecting rods look delicious ! Didn't Honda once make an engine with oval pistons for it's Moto-GP NSR-500s or something ?

To the experts, what are those injectors on top of the intake trumpets ? I've seen them on some YouTube videos as well, are they for water or methanol injection ? The attention to detail is awesome, even the cam lobes have been hollowed-out !?!

[dhaval]

Nice pictures there Ford Rocam. The V10 engines are a site to watch. By the way are these engines way different than the regular V10s or the V8s doing duty in a normal street driven car!!??In terms of weight, etc?

[dustDevil]

Great work! Thanks for all these amazing pictures!

Originally Posted by im_srini

To the experts, what are those injectors on top of the intake trumpets ? I've seen them on some YouTube videos as well, are they for water or methanol injection ?

Ya, what are those injectors for?

[Ford Rocam]

Originally Posted by dhaval

Nice pictures there Ford Rocam. The V10 engines are a site to watch. By the way are these engines way different than the regular V10s or the V8s doing duty in a normal street driven car!!??In terms of weight, etc?

Totally different, f1 engines are designed for higher rev 18000+ rpm so obviously things have to be lighter and stronger right from crankshaft to piston/rods etc..

for more info here's a superp technical article to read.

Formula One engines - F1technical.net

Originally Posted by dustDevil

Ya, what are those injectors for?

Originally Posted by im_srini

what are those injectors on top of the intake trumpets ? I've seen them on some YouTube videos as well, are they for water or methanol injection ? The attention to detail is awesome, even the cam lobes have been hollowed-out !?!

must be for fuel, see in circle the way injectors are positioned, aimed directly in to the combustion chamber when intake valve opens.

Watch this video you can see actual injectors at work.

YouTube - Renault F1 Engine

[redfire]

wow, great stuff here. Many thanks Rocam for sharing this. As Sankar said look at those mini skirts! Wish I could get one to place on my desk.

[paras211]

woow that renault video s super cool

[GTO]

Looks delicious enough to eat! Now imagine that piece of art working at 19,000 rpm.

[jalsa777]

great pctures man.

thanx.

anyone knows why the cylinder block top portion is covered with carbon fibre ?

[veyron1]

Nice...! Those port angles are simply outta this world...!! I've never seen a more obtuse angle on a head...

Weird rockers, though. Innovative. Presumably lighter than the Desmodromics to prevent valve float, & use a single pivot....sahi dimaag, yaar....

Any idea why the poppet/valve guides are designed such? I don't see no springs, so how's the actuation? Purely pneumatic? Hydraulic? And those pistons...just 2 rings...?

[HPP]

Originally Posted by veyron1

Nice...! Those port angles are simply outta this world...!! I've never seen a more obtuse angle on a head...

Weird rockers, though. Innovative. Presumably lighter than the Desmodromics to prevent valve float, & use a single pivot....sahi dimaag, yaar....

Any idea why the poppet/valve guides are designed such? I don't see no springs, so how's the actuation? Purely pneumatic? Hydraulic? And those pistons...just 2 rings...?

Yeah, only a compression ring and a oil ring set. These motors don't need to last that long(relatively), and I'm guessing it has almost no ring gap(purely a guess).

The stroke(or lack thereof)is amazing, it's easy to see how they can achieve the 19k rpms. They make all(again relative..) the displacement from bore size.

And I'm not sure what the question about the carbon fiber top is asking about exactly, but I'm guessing you are talking about the bottom of what would be the intake manifold(for lack of better words)which surround the carbon fiber intake horns. Another section goes on top to complete a large intake plenum I would guess.

Something like this maybe(and I think this one is missing some scoop or something that sits on top I think):

[X-Machine]

Whoa....Now that is some great stuff there. I can only imagine the roar from the engine.
Thanks for sharing.

X

[Hurrycane12]

Super pics gives a good learning on how the F1 car runs

[ananthkamath]

Originally Posted by veyron1

Nice...! Those port angles are simply outta this world...!! I've never seen a more obtuse angle on a head...

Weird rockers, though. Innovative. Presumably lighter than the Desmodromics to prevent valve float, & use a single pivot....sahi dimaag, yaar....

Any idea why the poppet/valve guides are designed such? I don't see no springs, so how's the actuation? Purely pneumatic? Hydraulic? And those pistons...just 2 rings...?

Yeah the first thing that hit me in the face was the ultra-narrow valve angle and the super-high lift on the cam lobe. Second was the piston which likely has a bore-stroke ratio of 2.5 or more.

You're right about the pneumatic actuation, in the penultimate picture in post #1, you can see how there's a pneumatic port (1) that's pressurized to act as a spring. The bottom half of the bucket is fixed and top half moves with the cam lobe and valve. Springs would simply fatigue or bounce becuase of their inertia. Air actuation guarantees the least inertia for the cam follower.

[Sankar]

In the regular engines the injector is placed close to the valves and after the throttle valve; but in the F1 engine why are the injectors placed at the entry point of the velocity stack and before the throttle plate? Is it for better atomisation and for what other reason? And is there a secondary injector after the throttle plate?

The 'lack' of port angle is amazing.

[Nikhilb2008]

Is it 100% genuine ?

I have never heard of Carbon Fibre being used in the engine !!