How should I increase front end down force on my 348?

Would a design like that not reduce your front-end ground clearance to the point where it is very difficult to use the car on UK roads? Lots of potholes and speed bumps everywhere, so would you need to consider a front suspension lifter to combine with that mod?

All the best,
Andrew.

 

Nice piece but it looks like it would scrape for sure anywhere but on a track.

 

Notice that the F355 has a duct that channels air under the car! Thus, your aerodynamic logic is faulty.

No, the problem is that once under the car, the air is pulled along with the car instead of remaining stationary (as in the F355). The smooth bottom of the F355 allows the air to remain at road speed (stationary) rather than car speed (fast) and this allows the diffusers out back to generate downforce. The partially disturbed bottom on the 348 pulls on the air much more so than the F355.

So, you could add a Diplane (A.K.A. nose spoiler). But this does nto prevent air from getting under the car, it simply applies some leverage on the front end of the car holding the front down.

Or, you could add a flat bottom like found on the F355 (including the diffusers out back).

But, all in all, its probably easier to throw on the diplane.

 

How dedicated are you to this? I suggest a simple splitter, the canards and then punch out the grill area and fabricate into a duct upwards to exit out the bonnet top. Should be just a bit of fabrication...

Not as radical as this, but similar.
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Set the rear a bit higher possibly?




On a humorous side...
I really hate to do this butt..
At least I am not posting the picture here LOL

Warning extreme front downforce



http://cdn2.holytaco.com/wp-content/uploads/images/2009/12/this-tops-all-thos-funny-cars.jpg

 

If you are at street speeds under 120mph downforce is not the problem. The car should be set up for max mechanical grip. The car is stable to about 150. Any splitter that works will be dangerous to have on the car without a wing to balance it. You want mechanical neutral to oversteer and aerodynamic understeer. The 348 doesn't have much power and the aero adds drag.

When I raced my 348 I added to the length of the bumper dam area and added a 4" splitter. That you can totally feel. I made the lower dam splitter removable so I would not hit things

 

Precisely!

You want the mechanical grip to tends towards oversteer in fast corners at the same rate the big wing out back tends toward understeer. The diplane is but a tuning device in this setup.

 

Have you considered fitting some wind deflector flaps inside the front of the wheel arches? Many modern cars have them?

http://www.emspowered.com/storefront/index.php?main_page=product_info&products_id=207

 

by getting really hot chicks to lay on the car with extremely aerodynamic bikinis.

 

I have a similar splitter on my 348 and just made a new one when I repainted the front bumper last winter. Since then I have made and sold two to FChat members here. I bought an extra sheet of the HPDE materail and could make you one if you like. It comes precut, the edge rounded and predrilled and countersunk holes. You just need 1" long stainless steel screws that will go into holes you drill through the bottom lip of your spoiler. Yes it will lower your front by 1/2" but it saves scraping the fiberglass and provides the lip. I can not say how much it helps aerodynamically. If you want one PM me.
Mike
Reading, PA
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Oh heck... this thread has taken a turn for the worse!

My eyes, my eyes...
Andrew.