bbundy

I used 2 layers of 5mm Chinese Imported underlayment plywood from Home Depot (looks and feels like birch) laminated together. The part that sticks out forward is and where it is attached is 2 layers thick the part under the car is one layer thick.

Light, Stiff, Cheap to make spares.

I had the car roll forward on the trailer and dropped it on the tong of the trailer. The splitter held the car up and it just damaged it a little.

Bob

Savington

iTrader: (31)

Pretty much.

We have real splitters on this forum:

jasonb

can u guys help me out here. that red thing is there so if you stuff it in the sand trap they can pull the motor and put the rest in the trash?

dc2696

iTrader: (2)

Just don't get towed by a truck with a low tie point :/

As for the splitters,



Fiberglass fail, time for something much stronger.

Handy Man

well, my new 1/4" birch version survived a full weekend of hill climbing. There wasn't any curbing to rub it on, but it did bottom out plenty of times on the rough public road without damage. It is pretty flimsy, but I only have 7 mounting points. 2 more might make it stiff enough to give me more confidence in it... or maybe I'll just find some 3/8" to make another one out of and keep the 1/4" one as a spare.

I haven't even tried standing on it yet... I think I would break it, lol

Zefiris

I've been using a 1/2" birch splitter with a single layer of fiberglass for 7 weekends. The fiberglass has scrapped off a little on the bottom edges, but just touching it up with paint and no issues.

I wanted to do a 3/8" based on others here, but couldn't find any locally. I'll also be trying out the 1/4" next time, maybe with a few layers of fiberglass.

chpmnsws6

iTrader: (12)

I used an 1/8th aluminum sheet but had to reinforce it with a piece of aluminum C channel as a spine down the center. It also only sticks out 3 inches from the Tougerun lip.

It touches the ground daily and its lasted all summer so far with no real significant battle scars.

Savington

iTrader: (31)

FYI, a piece of 12mm Birch in the same shape would have been ~13% lighter.

chpmnsws6

iTrader: (12)

If I had a track rat that never saw water, never tagged curbs, never sat in a parking lot with a-holes, and had 50 dollars to throw at the splitter I'd probably follow you're setup.

I just couldn't pass free, plus I felt it better for a street car. It extends back to the transmission and doubles as a skid for the aluminum oil pan that's already been messaged by the road.

NTM I don't have the sac to take corners like ya'll do on a daily basis

Ski_Lover

Andrew,

Where do you get your Birch? Nevermind, IJFG'd it and found Home Depot, Duh

Craig

Savington

iTrader: (31)

If you're clever a single 4x8 sheet from Home Depot Motorsports will build you two splitters - not that you'd ever need the second one, since they are so sturdy.

Leafy

iTrader: (1)

You wont break it, you'd be more likely to rip the fasteners through or tear the bumper off if its connected to only the bumper.

As a reference for how well a splitter needs to be mounted, a CSP splitter built to the limit of the rules produces enough downforce at auto-x speed that if its connected by the air dam to the bumper and just 2 front supports to the baby teeth it will stretch the bumper and you will see stretch marks in the bumper paint.

Savington

iTrader: (31)

If you are attaching your splitter to the bumper, you're doing it way wrong. There are absolutely no fasteners between my bumper and my splitter.

chpmnsws6

iTrader: (12)

We need pictures of your setup. Most on here have not been around many track cars. Living where I do, if its not done on dirt, its not done at all.

Handy Man

Mine has fasteners to the air-dam to keep the two from separating under load and to support the air dam. The splitter has it's own separate supports.

Ski_Lover

Andrew, I need to swing by your new shop and take a closer look, this gives me anouther good excuse (other than just to say hi and congrats on the new shop

Zefiris

Same here. I have little L brackets on the splitter for Dzus fasteners just to seal up the bumper to the splitter. The splitter itself is held up by larger L brackets connected to the frame and the steering rack.

mr_hyde

iTrader: (4)

Take a look at the DIY aero thread for more details on splitters.

chpmnsws6

iTrader: (12)

I have, but didn't see much in the way of brackets from savington

vehicular

iTrader: (3)

6 plies of 3k carbon twill over 1/4" Luan (3 plies each, top and bottom). Made with cheap US Composites epoxy and a hood rat vacuum pump made from a refrigerator compressor. Stiff enough not to deflect at 100mph, but really needs a couple of front supports. He's really busy with work and a new baby, though, and I just haven't dragged him down to the shop to fabricate them.


Diffuser and wing to come... one day.