DIY Custom Molded Carbon Fiber Splitter

Vacuum bagging a custom molded carbon fiber splitter complete with diffusers for my time attack Evo 9. The whole process is covered here from start to finish along with tips and tricks.

[@ajhartmanaero]

I thought about doing splitters exactly like this. The biggest issue is I couldn’t think of a way to make a proper leading edge so opted for a different technique. A quick tip for finding leaks, get a 2 foot section of the tube you use for infusion and put one end right near your ear and wave the other around the area of suspected leak and you should be able to pinpoint leaks.

[@KrebsbachRacing]

I haven't figured out how to make a smooth transition either. I'm not an upholstery tech. Haha. I have yet to figure out a smooth way to wrap the edges or outside corners. Good tip for leaks though. Thanks!

[@robin-qm7kn]

the beautiful leaks in the vacuum seal =)

[@KrebsbachRacing]

The enemy. Haha

[@RLCPLUMBINGLLC]

I have a composite shop and the bagging is the worst part and when you suck air that sucks as well. I use the thumb screw clamps and infuse a little slower a part that size takes me about a hour

[@KrebsbachRacing]

yea I didn't mean to infuse that quick. Just lack of experience. haha

[@hwangchiyeong]

압력확인을 안한채 수지를 넣어버렸군요

[@cwmotorsports4497]

So cool and so close to that 1k subscriber. 🎉🎉🎉🎉🎉

[@KrebsbachRacing]

Thanks! Almost there!

[@autogeek23]

​@@KrebsbachRacing 1300!!!!

[@Gkvello22]

Came from the professional awesome fb page! Thank you for the video! Very informative, eye opening to the DIY method!
Off topic, who framed the shop area where you were working at?

[@KrebsbachRacing]

Thanks! I built that as well.

[@hpmagazine3318]

Nice

[@juanfelipegarzon8281]

Hi! I want to make a splitter too for my race car and I was so inspired by your video I live in Colombia and aero development is not so big and I have a couple of questions. What kind of foam did you use and I saw you used foam for your diffuser molds, did you cover them with gel coat or how did you manage to achieve that perfect surface and did you CNC them? That would be it. Thanks a lot in advance

[@KrebsbachRacing]

I just used a 2 part 5lb density foam. Just fiberglass, body filler, and paint to finish them. All done by hand.

[@juanfelipegarzon8281]

@@KrebsbachRacing Great! I´ll try to to them like that. I also wanted to know what kind of 3/8in foam sheet you used for the splitter, I was looking fot XPS in my country but they come in high thickness size, about 40mm. Thanks for the response!!

[@MotorSwapDan]

What's it weigh? Great video

[@KrebsbachRacing]

13lbs

[@pepe12950]

How many layers you put?

[@KrebsbachRacing]

@@pepe12950 3 layers on the bottom and 2 on top.

[@pepe12950]

@@KrebsbachRacing all carbon fiber?

[@KrebsbachRacing]

@@pepe12950 did you watch the video?! There is a foam core in the middle.

[@taco2810]

Looked like you used Stretchlon 200 bagging film. Throw all of that away and use anything else. That stuff is garbage. I tried it 8 times and never got a single bag without holes, even on a flat piece. I used an ultrasonic leak detector and the bag had holes all over the place.

[@KrebsbachRacing]

Good to know. Thanks.

[@cristiannunez5228]

Will you sell me one for my evo lol

[@wurstcrewchief2798]

Same!!!