F1 Exhaust System

[MIKEY_!]

This engine wont be shorter than the V8.

However the turbo could sit above the gearbox thus shortening the car. Also with restricted fuel flow the fuel tank can be smaller thus allowing the car to be shorter without sacrificing CoG.

Could the exhaust pipes be run over the top of the cylinders to the turbo allowing it to be central. (There's a height penalty here)

[Edis]

That means the turbo has to be behind the engine with the width of the V, 25mm from center line, and with the pipes running round back to it.
This engine wont be shorter than the V8.



This is one example. There are some other layouts, but not far from this.

I would expect the turbocharger to be closer to the engine than that, above the gearbox the turbo will block the airflow to the rear wing.

Here's a champcar installation as a comparison

I know, this is just to demonstrate the location of the turbo. Either way you cannot say that these are equal length.

Equal length or not doesn't matter, they are still not log type manifolds. With turbo production engines, you usually don't use equal length pipes though since it will offer little benefit at the cost of a larger manifold volume.

The manifolds in the picture seems to be of 4-1, 4-2 or 4-2-1 type, probably unequal lenght to keep the manifold volume as small as possible.

[MIKEY_!]

The engine is taller than the gearbox isn't it??? If it is then the turbo won't get in the way. This champ car layout will mean exhaust from one side will have to travel around the engine or gearbox and then back again.

[ringo]

Also it's shaft is not parallel to the car center line.
Flow to the rear wing is irrelevant if we are talking horse power here.
Especially when that turbo exhaust can blow under the wing!

[MIKEY_!]

Or the beam wing. Or the diffuser (although it will be getting cold) if the exhaust rules allow the pipe tips the be angled downward using RBR sidepods.

[Edis]

The engine is taller than the gearbox isn't it??? If it is then the turbo won't get in the way. This champ car layout will mean exhaust from one side will have to travel around the engine or gearbox and then back again.

The engine is taller than the gearbox yes, but the engine is also in front of the gearbox and some distance away from the rear wing.

No, the champ car layout doesn't mean exhaust flow the way you describe

Also it's shaft is not parallel to the car center line.
Flow to the rear wing is irrelevant if we are talking horse power here.
Especially when that turbo exhaust can blow under the wing!

Yes, you would be forced to turn the turbocharger 90 degrees so its shaft is parallel to the cars center line.

Regardless of the exhaust flow, you don't want the turbocharger to hinder the airflow to the lower rear wing. When you've gone to a lot of trouble to remove all the suspension parts from the upper part of the gearbox, you don't want to add a new component there.

[MIKEY_!]

The engine is taller than the gearbox yes, but the engine is also in front of the gearbox and some distance away from the rear wing.

What are you getting at with this?

[ringo]

I know this sounds like blasphemy becuase of the implications on the car's volumetric efficiency and power, but can there be a case where the packaging and and thus aerodynamic benefits of a certain manifold design, (for example log manifold ) actual give it precedence on an F1 car over an equal length manifold?

There would be a noticeable loss in power, but how much power really?
The log manifold has some things going for it if we think about cooling flow through the packaging etc. Yes there are issues with tuning and pressure waves etc.

After seeing renault and their front exhausts you cant help but think engine power can be sacrificed for other benefits.

http://simex.sakura.ne.jp/blog/renaultr24-522-thumb.jpg

these do take up quite some space. To be clear I'm not endorsing the log manifold to be used any time soon, just going out on a limb on this one.

There must be a way to package an equal length manifold more efficiently, even with the use of oval sections for aero benefits.

The log, or something close to it would be the desperation move. Especially for an engine with power to spare like the Mercedes.

Well what do you know!!
F1 gone to the dogs in the span of 3 years..

[mycadcae]

Ta / Rpm

[rjsa]

Borrowed from the FW36 thread:



The blue arrow: Waste gate bypass?

[mycadcae]

Borrowed from the FW36 thread:

http://imageshack.com/a/img534/860/zt1w.jpg

The blue arrow: Waste gate bypass?

So...?