The engine in the Speed Academy Scion FR-S has been extremely reliable, having not only survived a turbocharger and nitrous injection prior to Peter and Dave’s involvement, but also having run strong at Targa Newfoundland last year where it finished 3rd in class and 6th overall.
But with another weeklong endurance race on the schedule, this year running the car in the inaugural Ontario1500 event, the Speed Academy team decided to take the precautionary measure of swapping in a low mileage FA20 engine prior to installing a Jackson Racing supercharger kit.
As Dave explained, “For Targa Newfoundland we felt the stock FA20 engine was a perfect fit, since its 200 horsepower would be more than enough for us to run competitively. For Ontario1500, however, we really wanted to boost engine output since we’d be running against some very fast track-prepped machines. After doing a lot of research on forced induction solutions for the FR-S, we settled on the Jackson Racing supercharger kit, which offers what we consider the best combination of reliability and performance.”
The JR kit looks a bit intimidating all laid out on the shop floor prior to installation, but the instructions provided are outstanding and Peter, Dave and their shopmate Ken had the supercharger up and running after about 8 hours of wrenching.
They also installed Jackson Racing’s track engine oil cooler kit, which features a large capacity Sebtrab oil cooler (left) that’s integrated beautifully on a mounting bracket that’s also used for the supercharger’s oil cooler (right). Peter and Ken tested it for leaks (above), and the Speed Academy team is happy to report that oil temps are perfectly controlled by this setup during a recent track test.
But before track testing, Sasha from OnPoint Dyno worked his magic dyno tuning the ECU for the 9 psi of boost pressure the Rotrex supercharger makes at 7,000 RPM.
The end result of the OnPoint custom tune on 94 octane was a rock solid 262 horsepower at the rear wheels. That’s almost 90 wheel horsepower more than the engine produced last year and should make this FR-S a serious contender during Ontario1500.
Engine Swap video:
Supercharger kit install video:
Dyno Tuning video:
Be sure to check out the Speed Academy YouTube video series covering the entire buildup prior to Ontario1500, including the engine swap, Jackson Racing supercharger installation and dyno tuning episodes above.