Nick’s Supercharged 2014 Scion FRS Build

Scrion FRS with aeroIn this post, I’ll share the details of my 2014 Scion FRS build. It’s a pretty fast car, with the word “fast” quantified by some good results in time attack and autoslalom.  As far as results, it all kind of came together this year. In autocross, I got my first FTD (fastest time of day) at a club autocross event with really strong competitors. In time attack, it is officially the fastest FRS in the region (there could be faster street 86/BRZ/FRS’ in the underground scene, but I’ve not seen them). It also holds the official street tire (200 UTQG rated tire) record at Atlantic Motorsport Park in Nova Scotia. Here is the video: https://www.youtube.com/watch?v=fcj0eCB-CVE

I spent a good portion of 4 years building up my 2014 FRS. The journey started immediately when I bought the car new in April of 2014. I, right away, put a Jackson Racing Supercharge kit on it. The goal was to have a nice street car for daily driving. I didn’t plan to use it for competition. But then I joined the Atlantic Sport Car Club and tried time attack and autocross, quickly realizing that an aftermarket supercharged car is not very competitive due to performance indexing. So the plan evolved to get the car to a more competitive level, which is where it is at now (the driver mod too).

Building the car was a learning process. I started with just changing brakes and suspension bits. Bolting on the supercharger was easy because I just followed the instructions. The hardest part of my journey was replacing the DI seals and doing the aero. The rest was just time and money. Learning how to do an alignment in my driveway was key. It seemed like a complicated process before, I just didn’t get it. But now, it’s pretty easy. It just took some trial and error and a bit of thinking about how the system works. Anyway, here is the build info…

Build info

Supercharged Scion FRS

Tires: Bridgestone RE71R 255/40R17
Rims: 17×9 RPF1
Brakes: stock brakes with Hawk DTC60 pads front, HP Plus rear
Suspension: KW Clubsport coilovers, Verus Engineering rear LCAs, stock anti-sway bars
Motor: Stock Subaru FA20, red 2016 Subaru intake manifold, bolt-on Jackson Racing Rotrex C30 Blower, high boost pulley, 100 Octane Racegas mix concentrate producing 282.5 whp (Mustang Dyno)
Exhaust: JDL Auto Design catless UEL header, Nameless 3″ headerback
Engine Management: Ecutek ProECU tuned by Delicious
Aerodynamics: Ninelives Racing 70″ Wang, custom end plates and gurney, custom low budget 4″ front splitter made from alupoly and aluminium

Supercharged FRS Dyno
Mustang Dyno

Nick FRS on a Dyno at 282.5 WHP

Setup

Ride Height: somewhere just a little lower than stock so that it doesn’t rub. 5mm rake in rear
Shocks front: compression 15/15 clicks, 13/15 clicks rebound
Shocks rear: compression 12/15 clicks, rebound 12/15 clicks
Camber: FL -4.0, FR -3.3; RL -3.0 (limited by adjuster rod), RR -2.6
Toe: F 1/16th toe out, R 1/16 toe in (close.to zero, did this at home with rudamentary toe plates and tape measurers)

If you’ve any other questions or details you’d like to know, feel free to leave a comment and I’ll reply when I can.

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