Aero help

[ChazInMT]

Looks all the world to me like there is a good area of high pressure to generate plenty of flow through the coolers placed there. If it were a solid area, I could see it being a serious transition area and pressure would be dramatically lower....but it isn't, it is essentially a flat area facing forward. The side or your existing air intake is already going to act as a scoop, so I don't see a need to extend it forward to be more scoopy. The air on the orange Pelican Tech Porsche scoop thing appears to be coming off a large solid area, the turn signal and such, so it would be moving sideways quite a bit. There I can see the need to extend the scoop on it. On your car, the air is being gobbled up by the main air intake inboard, so the air is coming straight into your lower side intakes. I really think it will work well for you. Good luck! Super cool project you have there.

[kach22i]

Wolf_Tm, when you have this project completed please return and post the results.

One thing I've seen in the Pelican Parts forum with front oil coolers is the cautionary tale of making sure the fittings are not constricting flow.

Apparently you can have properly sized oil lines and oil cooler, but if the fitting is too small you will not get the full cooling.

Sometimes fitting a larger fitting is all it takes, for example going from 1/2" to 5/8" is a world of difference in some cases.

[Wolf_Tm]

Originally Posted by ChazInMT

Looks all the world to me like there is a good area of high pressure to generate plenty of flow through the coolers placed there. If it were a solid area, I could see it being a serious transition area and pressure would be dramatically lower....but it isn't, it is essentially a flat area facing forward. The side or your existing air intake is already going to act as a scoop, so I don't see a need to extend it forward to be more scoopy. The air on the orange Pelican Tech Porsche scoop thing appears to be coming off a large solid area, the turn signal and such, so it would be moving sideways quite a bit. There I can see the need to extend the scoop on it. On your car, the air is being gobbled up by the main air intake inboard, so the air is coming straight into your lower side intakes. I really think it will work well for you. Good luck! Super cool project you have there.

Thanks for your argument, makes a lot of sense to me!

Last question...
where would you guys open the rear part of the vane to let the air go out against the tyre?
I'd say the inner lower part, given that I have lips on the bumper to decrease pressure under the car...

[Wolf_Tm]

Originally Posted by kach22i

Wolf_Tm, when you have this project completed please return and post the results.

Yes I will for sure!
Just don't expect them in the near future as I'm a proud member of the lift club!

One thing I've seen in the Pelican Parts forum with front oil coolers is the cautionary tale of making sure the fittings are not constricting flow.

Apparently you can have properly sized oil lines and oil cooler, but if the fitting is too small you will not get the full cooling.

Sometimes fitting a larger fitting is all it takes, for example going from 1/2" to 5/8" is a world of difference in some cases.

Exactly, that's why all my oil lines already are dash 10, that is to say 5/8"...

Thanks

[kach22i]

FYI: For future reference, an aftermarket Porsche radiator venting at front valance.

Porsche Reloaded Style! | Car tuning and Modified Cars

[Wolf_Tm]

Originally Posted by kach22i

FYI: For future reference, an aftermarket Porsche radiator venting at front valance.

Porsche Reloaded Style! | Car tuning and Modified Cars

Very good find, thanks!

[CFECO]

Looks like they are turning the airflow about 90 Degrees...that would create a lot of drag I'd think.

[kach22i]

Originally Posted by CFECO

Looks like they are turning the airflow about 90 Degrees...that would create a lot of drag I'd think.

The exit is about twice as large as the intake, so there would be a drop in pressure.

The air whisking by would bowl it over, right?

[CFECO]

"The air whisking by would bowl it over, right? "....???
Anytime you "make" the air change direction, it creates drag.

[kach22i]

Originally Posted by CFECO

"The air whisking by would bowl it over, right? "....???
Anytime you "make" the air change direction, it creates drag.

This is a complex condition to analyze, it's challenging the limits of my understanding to be honest.

There will be forces to overcome as the air diverges in this duct and is blunted somewhat by what ever radiator or cooling exchanger is in there.

My earlier comments were actually concerning the other matter which is reintroduction into the airflow.

The lower pressure air will be slapped back towards the body and not be ejected very far outward I predict.

I suspect that one could make the exit air flow discharge opening too large and lower the pressure so much that it never gets forced though and back out the side. In such an instance the flow may even be reversed as it is when opening a side window at speed. In this situation the air flows into and out of the cabin quite turbulently in a oscillating (buffeting) fashion.

Look real close at the original image, it might not be a 90 degree elbow. I detect quite a bit of bending, hard to tell for sure without a plan view or drawing.

EDIT: It's looking even more 90 degrees here............unfortunately.

http://fancytuning.com/2012/06/champ...sr/#more-20116



MORE:
http://www.m3forum.net/m3forum/showthread.php?t=417938



Plus some rear end action....................
http://moyanophotography.com/automot...3/default.html




As I understand it, the fan will not draw well because it's not sealed, a pusher fan on the other side could get away with this.

Poor engineering on at least that count.