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Full Tech Articles by Segment
The basis of the project is Factory Five‘s proven MK4 Challenge series car. The Challenge kit differentiates itself from the standard Roadster kit mainly from its fully integrated, NASA legal cage. A robust halo bar is easily identifiable and from there, fully integrated door bars makes getting in and out of the car a little more challenging than a standard Roadster. A standard 3-link rear suspension and tubular front suspension are some of the additional items that come with the Challenge kit. We optioned a Street Completion package to make it road worthy, which consists of a second seat, carpet, and a windshield.
Our Factory Five Challenge project will be built in a home garage and will be highly documented. Every time we work on the car we will update this story with our progress. In addition, there will be full tech articles on the larger portions of the build.
This is where the Cobra Jet portion of the project name comes in to play. Last year we built a Coyote engine that was based closely of Ford Racing’s naturally aspirated Cobra Jet engine program. Featuring the same 312 ci Livernois block and Mahle pistons, it was filled with other go-fast goodies that allowed this Coyote to produce 624.9 hp and 462.3 lb-ft of torque – on a conservative 12:1 compression ratio.
We will be making some additional updates, including a set of individual throttle bodies, before the engine heads to its new home. Regardless, a 2,100 pound car with that much power will be a blast to drive!
Stay tuned as we build our Factory Five MK4 Challenge kit car!
4/18/16 – Wow, it’s been awhile! Check out the sidebar above for all the new articles
So we dropped off a bit the last six months or so. To recap, we went into SEMA build mode with the car, got it successfully to SEMA (more on that in a minute) and back from the show. In between, we have ran into a variety of issues with the engine that has kept the car from being street worthy. Follow along with the updates below.
9/22/15 – Full steam ahead the last two weeks
9/8/15 – Less than two months until SEMA!
Well, now we are going to officially tell you that the Cobra will be in Toyo Tire’s treadpass booth between the performance hall and wheel and tire hall. With less than two months to go, there’s still a lot to get done. We are rounding out the smaller details so we can start putting the bigger pieces together.
8/10/15 – Plugging along with a bunch of smaller tasks
7/14/15 – 8 hours times two people
7/6/15 – Almost two months since the last update!
Sometimes life gets busy and projects need to take a temporary back seat, though we are back on course with our Cobra and we have some updates to get you caught up on!
5/9/15 – 6 hours of install time, times two – Fuel Cell, Lines and Pedals
4/28/15 – We made it to the Factory Five Huntington Beach Show!
4/23/15 – Another 12 hours – Prepping for the Huntington Beach Show
4/6/15 – 10 hours of install time, times two
3/21-3/22/15 – Kit Received! 8 hours of install time
3/13/15 – More Parts and Still Waiting
2/23/15 – Shipping Thursday
2/20/15 – Making the Metal
2/17/15 – Packaging Up the Car and Parts Arriving
2/10/15 – Chassis Complete, Onto R&D
- Additional bracing to the three-link upper mount due to the power we are making.
- Welded Panhard bar mount
- Anti-intrusion brace
2/6/15 – Building the Chassis