I've been working on my own splitter design for my MINI Cooper S, so it was interesting to see that a splitter was just added to the GRM MINI.
I thought I'd share my design here, as it's fairly simple to make and does not require the links or turnbuckles seen on other designs.
(BTW my image-fu is weak so please excuse me if the image sizes annoy)
Ingredients:
Aluminum 6061-T6511
Carbon Fiber, Bidirectional (BID)
Carbon Fiber, Unidirectional (UNI)
Epoxy, West or Proset
Rohacell foam, 4lb/cu.ft., 0.38 inch thick
1/4-28 Stainless steel threaded rod, 60ksi UTS
-6 Aluminum tubing, 6061-T6
Step 1: Cut the foam to a pleasing shape:
Step 2: Add carbon fiber. Three plies top and bottom. The middle ply on top should use the UNI with the fibers oriented front to back.
Step 3: Vacuum bag wet layup for 24 hours. Keep layup at about 75 degrees F.
Step 4: Trim the part, and add aluminum mounting hardware.
Step 5: Mount the splitter using the threaded rod and the tubing. Check for structural integrity by applying approximately 185 pounds of weight to the front edge of the splitter. Bounce up and down a bit to check for deflection.
Step 6: Trim off lower lip of nose panel and install panel on car.
That's it! Here's a picture of the finished product:
After all of this, I found that I CAN get into my driveway without scraping the splitter on the ground. Nice.