Progress on the EVO

Well when Dave Kern starts something he is most likely going to finish it. I mean seriously. His wife Allison recently recounted the time that the motor blew during a race, fire was shooting out of the hood, over the car in large balls of glowing heat and she had to tell him that it was over, they had to pull over. Well, this same determination goes for fabrication of the ultimate race car too.

This years car features a complete composite body, about half of which is being fabricated by Dave with a bit of help from me. The other half are commercially available parts. The new car will feature larger, stickier tires, more elaborate aerodynamics and a full flat bottom to also aid in the aero. Wow, it is a ton of work and wow I wish I had more time to help him out because I feel bad that he is going at most of this alone!

Check out some photos from the build so far.







My composites professor from Metro has decided to tackle the front aero. With a brand new splitter that should actually weigh about 1/3rd of the weight of the current splitter… well this thing should be mean



Check back for more and check in with RaceKern for even more details on the build.

Carbon EVO Dash | Part 2

I don’t know why I forget this stuff, but I am remembering how much work making a mold is… Yeah. It is one of those things that I remember when I really think about it, but when I haven’t done it for a while I convince myself that it will just take a few hours.

If you haven’t seen part one of this build check it out here. This time I have been going layer after layer, working my way up and trying to get a nice smooth final product. There have been some tricky parts like the airbag area and the vent holes. In addition the portion that I have made with foam is a bit tricky as well, occasionally when you get beyond the bondo layer you find out what happened very quickly when you hit the soft foam! I reached a point where I needed a much better visual indicator of what was going on. So I had to put a coat of glossy paint on in order to see the lines better than I could with the flat primer. So I chose a red paint and painted it up. It gave away some issues immediately. There were some sanding marks that were a bit deeper than anticipated, some waves that I needed to sort out and basically it just did exactly what it needed to do.

Carbon EVO dash project

Carbon EVO dash project

Carbon EVO dash project

So I did a full wet sand on the part and really smoothed it out. some spots got all the way back to bondo again through the paint layer and the primer layer. Once I got it all smoothed out another layer of glossy red and WOW! what a difference! It looks very good right now. There are a few little imperfections, they are all pits and will actually be easier to fix in the mold itself so I am going to leave them and sand them out of the final mold.

After the mold was fully prepped we took aluminum tape to create the rest of the part. Basically the part needs draft, so using the tape is much faster and easier to shape for portions of the mold that we don’t care about. Plus it doesn’t really stick to the fiberglass, so that helps as well.

Carbon EVO dash

Carbon EVO dash

Carbon EVO dash

I believe that there will be two more parts to this project, one more for the mold making and one more part for the final part that we pull off the mold. Check back soon!

Carbon EVO Dash… Part 1

Well, I always find my way into various projects. It is funny, the more things you say yes too the more that you can learn. So with that in mind I set off to make a new dash for the Kern Racing Pikes Peak EVO.

For those of you not familiar with this car, I have built a few parts for the Kerns already. Last year I worked on their Aero Package and in the last few years the Kerns, piloting this car, have held the record for the Time Attack 4wd class at Pikes Peak. This team is unstoppable with the proper equipment and I am happy to be able to help them with their quest.

This year they are switching to Pikes Peak Open. This allows them a few more options in lightening the vehicle. Weight is a huge advantage in racing. Lotus has a saying “performance through light weigh” this saying just means that you don’t need as much power if you have less to move. So with the new possibilities every option needs to be considered. So Dave has been working on ideas. Remove brackets, replace windows with lexan, remove lights, remove dash…. wait. We can’t remove the dash, we need that to block reflections from the windshield. we need it to hold critical components like the speedometer and switches that we need. So instead it needs to be a composite dash of some sort. Now to give you an idea, the current dash weighs in at 38lbs. That is a lot of weight! Why does it weight that much you ask? Well, glovebox, vent plumbing, plastic bits, tabs, mounting brackets and more stuff that isn’t needed in a race car all add up pretty fast. With a carbon dash, we should be able to get that down to about 2 lbs! 36lbs of weight savings!

So to start I began with the original dash. This is to provide the form of the dash that we will end up with rather than try to duplicate it out of foam. The first steps were to mount this to a board, and begin creating the form of the underside of the dash. This dash will have a slightly different shape than the original in order to minimize material and make it very stiff and light.

Carbon Dash Project

I started shaping the foam and coating it with bondo in order to create a nice solid surface to create the mold from. Any factory dash is going to have texture to it and I needed to eliminate that texture. So coating it with bondo while starting to fill in the holes was pretty crucial. We are eliminating all of the vents on this dash except for the defrost vent. This one we will still need!

Carbon Dash Project

Carbon Dash Project

After the first layers of bondo a lot of sanding goes on, I kept smoothing this thing down so that the dash shape stays the same. I don’t want to lose the form of the dash while slathering it with all this bondo, so I figure work my way up slowly. Once I got to a point that I felt comfortable I started filling in gaps. Vents on the sides were the first stop.

Carbon Dash Project

The vent holes on the front needed to be filled next, so a piece of foam went in and bondo was applied over top. This is a bit complicated because we really want to make sure the shape holds true to the shape that the dash gives us already. The last thing I’d want is for someone to be able to identify where the vents were at one point.


Slowly I built up layers and sanded them back to get the shape correct. Over a few attempts I got this thing pretty close.


I am sure you can see that there are a lot of colors going on now. Primer grey, bondo (grey), glazing putty (white) and the actual dash (black). All these colors start taking away the visual cues of the lines that you are looking for when you are trying to make a part. So the best plan is always to coat it again every once and a while. get a good idea what it looks like in one color and start working hard at the areas that need improvement. I knew that I wasn’t ready to be done, but I really wanted to see where I needed to work the hardest so I did a quick coat of primer. Nice and heavy and this time I did black so it would give a good visual indicator.




I am sure you can see that there are some inconsistencies in this thing. It isn’t perfect by any means and it isn’t perfectly straight or anything. But this is getting very close. I have a bit more sanding to do, I have a bit more bondo to do and hopefully in the next day or two I will be able to finish up this part of the project so I can start waxing it and pulling a mold off this buck. Check back for the next part. If you have any questions, post them up! I’ll try to answer them.



Oh, notice as well, all the seams are filled, all the switch locations are filled and everything is pretty close to smooth. Details are next!

Check out Part 2 of this project here

AXYS Vehicle concept

I was fortunate enough to be selected to be part of the AXYS vehicle concept design and build team. This is a hand selected program at Metro State College of Denver. The premise of this project is to build an entire composite vehicle, design all the elements of the vehicle (except the body shape) and present the vehicle to the public by the spring of 2010.

Side Rendering

The presentation portion of this will be a soft presentation, the vehicle will not be fully functional at that time and the interior will not be completed, but most of the design should be finished and the vehicle should be presentable enough to show off what it is going to be in the end.

Overall this is quite the process there is an incredible amount of work to do including sanding, finishing and forming this whole thing by hand. The vehicle is going to be a two seat vehicle that leans in corners. Here is a quick rendering of the vehicle from its initial design.

Side Rendering

We are working on a website for the project right now as well. The URL is and I invite you to check it out. Once the site is up and running we should have updates regularly to keep you informed!

In the mean time, we will be laying up fiberglass and sanding down bondo more frequently than you can imagine!