Darren

I keep wrecking my stock front splitter and it's not quite big enough anyway. I think I'm going to try to make one according to the article below out of plywood, fiberglass resin, and fiberglass woven mats.

Has anyone ever done one like this before? Any thoughts on doing it this way?

http://www.specialprojectsms.com/ind...?categoryID=30

Astroman

My splitter is cut from 1/4" plywood without the fiberglass. It works awesome. And a 4'x8' piece of plywood ($20) is enough to make 3 of 'em.

Cut the splitter into two pieces so that when (not if) it eventually rips off, you may only have to replace one side of it.

mark kibort

i made mine from fender aluminum. that way, its already painted too.

Darren

Awesome, how did you guys support the splitter? Looks like like Mark has some wires or something, difficult to see.

Astroman

Mine doesn't stick out far enough to require any support:

mikew968

ditto 1/4" plywood, mat and fiberglass. replaced the stock belly pan and used Loews turnbuckles to adjust and secure. there are better support rods made but theya are 50 bucks apeice!!

Land Jet

Darren, I have been researching this as well. You can buy a 1/8" sheet of polycarbonate for about $120 and make more than one. The polycarbonate is light and strong, only drawback is it will have to be painted, or maybe not. I am going to a refrigerator store to get a large piece of cardboard from one of their boxes to make a template. For strength and rigidity I figure it will need to be screwed to fixed body members under the front of the undertray. The polycarbonate supplier has a computerized router to cut the pattern for about another $100, so the whole thing should be less than $250. If you make it yourself, less.

JackOlsen

Aluminum, and not pretty. But it all unbolts and fits in the car for the drive to the track:

Darren

Black cars rock!

Darren

How much force do you think is put on a splitter that size? Looks like it sticks out 4-5" or so....

joseph mitro

plywood is heavy.

use polyurethane foam in the big 4x8' sheets you get from Lowe's or Home Depot, cut it to shape, and then fiberglass over it. I've made a splitter like this....much more lightweight than plywood, and still very rigid if done correctly.

fiberglass resin will dissolve certain foams, so it's got to be polyurethane foam.

lots of BMW racers use DiBond or Alumalite. Also very lightweight and rigid.

Darren

The blue stuff?

Darren

Actually I guess that is polystyrene?

Greg Smith

A vote for alumalite/alumacorr here.

MPD47

That's what I use, strong, relatively cheap (ok, compared to carbon, it's $104 retail for an 8x4ft sheet), and easy to work with.