mark kibort

Has anyone done this besides JV?

JV, can you post a picture of your nose?

Good idea for getting more flow through the radiator. there is not a huge inlet of air as it is, and on those hot days, a larger opening might not hurt. PLUS, if you have hood vents, it might be more effective than a larger splitter, because all that incoming air will be going to the intake, and through the radiator and if it all is vented out the hood, that is some downforce aid.

anyone else cut holes in the nose? I might make a square just like JV did and put a screen over it or just open it up. I have a screen behind it anyway for the bottom inlet to vet air up to the radiator and intake.

mk

Fabio421

Here you go.

soupcan

..

scottzj

Wow Fabio I like that look! That is very clean and keeps up with the clean porsche lines.

mark kibort

Thats it! Im getting my saw out tomorrow! That looks great

ptuomov

Soupcan -- How can I make or from where I can buy that bumper?

mark kibort

it looks like just 4 cut outs right above the stock bumper openings.

mark kibort

any screen under those expanded vents?

soupcan

That's what it looks like to me and I like the it.

ptuomov

If one just cuts those holes, how to make them curve right in so the whole things doesn't flutter like a m'f'er at speed? Not that I know anything about car aerodynamics, but with the little experience that I have from RC airplanes, just cutting isn't going to cut it. (Pun intended ...thank you, thank you, I'll be here all week.) The has to be some sort of guide for the air. Don't you think so?

White Lightnin'

Here's a pic off of the 928 Specialist's gallery of Tom Falkenberg's supercharged 6.0L race car...

I think he started with an A.I.R. bumper cover and lower valence. The A.I.R. bumper cover comes with a wider than stock grill already. He then cut additional slots on the nose and removed the fog lights. You can see the big radiator behind the grill.

I had the lower valence under my stock bumper, but city streets, speedbumps & driveways were not kind to it!

mark kibort

Kind of defeats the purpose of the spiltter. All that air in the nose now will just pass through the radiator and then end up underneath the car. the yellow beast needs a good HOOD VENT!!

thanks,

mk

mark kibort

No, its just an opening. the stock inlets due have "inlet guide vanes" to use some airplane jargon, because they divert the air slightly upward to the radiator and to the intakes. However a straight on opening will just vent the highest pressure air to the radiator and in my case, try and exit to the hood vent, the question is whether the opening , with the radiators can flow as much as the hood vent can. otherwise I could be defeating downforce for more cooling. I think, in thinking about it, I might put a smaller one like VR, which certainly can exit out the vent, but add some cooling to the radiator.

I might have to do some pressure tests to see if I can raise the top of the hood pressure with vs without the new opening.

mk

hacker-pschorr

Obligatory pics:

White Lightnin'

MK... you could get this hood from a slant-nose 928 'Testarossa' kit (also from A.I.R.), open up the air slats in the hood and move the radiator to the front side of the support with the appropriate ductwork to vent the air. A little experimentation will probably be required.