Sneak Peek: Texas Dave’s Pikes Peak Evo 8

by Khiem Dinh

Khiem Dinh is an engineer for Honeywell Turbo Technologies at the time of this writing.  All statements and opinions expressed by Khiem Dinh are solely those of Khiem Dinh and not reflective of Honeywell Turbo Technologies.

I was millin’ bout outside the SEMA convention hall when I tripped up on this here Evo. It’s got a big ole front splitter after all. Then I got to talkin to the owner, Texas Dave Carapetyan. Me: So where in Texas are you from? TD: Austin. Me: No kiddin’, I went to school there. Where in Austin? TD: Hyde Park. Me: No kiddin’, I lived a mile away. I used to run through your neighborhood. Hey, anyone ask if this was a STi? TD: Only one person so far. Me: Dude, that ’69 Camaro next to you is sweet. Anyway, besides being a Pikes Peak car and rally car, Texas Dave is going to take this thing to Super Lap Battle. Unlike many cars that just have horse drawn carriages full of money thrown at them, this car was built smart using a bunch of homebrew backyard Texas technology fueled by BBQ and it’s awesome.

About that front splitter, it needs to be big for the thin air at the top of Pikes Peak. The splitter is attached to two steel (I think) support rods sticking out of the front bumper. The massive end plates have a support rod at the top going through the fender to the chassis. The front mount intercooler is angled forward giving the air going through it a little more direct path out the hood. You can’t see it in this picture, but there’s an oil cooler in passenger side bumper opening. The carbon fiber duct in place of the stock headlight feeds cool air to the intake.

Here’s another view showing the headlight duct feeding nice and cool air to the intake for the turbo. If you need a reminder of why you want cool air, go back and read our guide to compressor efficiency and more. Two big sucker fans in a shroud are used to help pull air through the intercooler. You see, rally cars spend a lot of time going sideways around tight corners with the throttle pinned to the floorboard. Under such conditions, there’s not much vehicle speed to push air through the intercooler, so the fans are required. Magnus did a nice job on forming the intercooler end-tanks to try to minimize the pressure drop of the air flowing through. Notice that all the lines running near something hot are wrapped in insulation for protection. The valve cover even has the gold tape stuff to reflect the heat transfer from radiation coming off the Full-Race exhaust manifold.

Texas Dave has himself here a Full-Race twin-scroll setup with two Tial wastegates. You can see how even the lines to the wastegates and turbo are protected by insulation.

The front fender has a big ole hole in it. Something about letting air and dirt out or something.
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Connor Harrison
Connor Harrisonlink
Monday, November 11, 2013 10:06 PM
The foam pad on the wheel is part of the Pikes Peak "safety regs". We did a similar last minute solution for the Enviate with some packing foam from one of his radiators.
Connor Harrison
Connor Harrisonlink
Monday, November 11, 2013 10:06 PM
FIA certified packing foam, that is.
Tuesday, November 12, 2013 12:30 PM
You can call it a passive airbag... :)
Tuesday, November 12, 2013 9:13 PM
Man, this is really one of those "so ugly it's beautiful" sort of cars.

Very rough-around-the edges, far from the cleanest or neatest of racing cars out there. Yet... there is something incredibly compelling about it. All the important stuff is there, you can tell it is very well thought-out. The builder just didn't care about non-essential, fit-and-finish type stuff. Clearly, the only thing he cared about was going as fast as he could while being safe and reliable enough to do it over and over again.

I *really* like this thing. I find its rough-and-ready attitude very appealing. I love seeing this sort of barn-door engineering at very high levels of competition. Texas Dave sounds like one hell of a guy.
Tuesday, November 12, 2013 10:24 PM
Texas Dave is cool as hell! I forgot to mention his awesome story of talking to Sebastian Loeb at Pikes Peak. He does a great Loeb impersonation too!
Wednesday, November 13, 2013 12:20 AM
How do the vertical supports to the front splitter not produce more drag than the beneficial down force? Sebastien Loeb's Peugeot is similar, well engineered & very fast, but it seems like there better options.
Rodimus Prime
Rodimus Primelink
Wednesday, November 13, 2013 8:31 AM
This is nice set up. Not sure if it can hang with the Peugeot 208 but then again we talkimg Sabastien Loeb here. He races in Rally events and is like Vittel in F1 very dominate. Driver like that combined with good car going lay down some ballistic times. Good luck with the run. race smart pikes peak is dangerous.
Wednesday, November 13, 2013 10:04 PM
@Rodimus, nothing can hang with the Peugeot or Loeb. That Peugeot was a full factory effort where they basically converted a LeMans car into a Pikes Peak car. And then there's Loeb.... the guy is a freakin machine. No one can touch him in rally.

Don't worry about Dave though, he's the 2008, 2009, 2010 Pikes Peak Open Class champion.
Anonymous User
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Thursday, June 22, 2017 1:18 AM
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