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Polaris Slingshot with a Turbo 2JZ

Published in engineswapdepot.com

Scott Riley set out to create a unique Polaris Slingshot at his company Sport Rider in Altoona, Wisconsin. The project was built to be a raffle prize at a rally event with proceeds going to a charity. Unfortunately in the middle of the build the rally planner informed him the raffle was canceled. Scott decided to continue on and finish what he started.

Polaris Slingshot with a turbo 2JZ inline-six

Scott originally considering powering the Polaris with a LSx V8. However a good friend recommended he look into using an Audi V8. Scott decided against the Audi V8 after researching it. The friend then recommended a Toyota 2JZ inline-six. Scott agreed to the choice after discovering the aftermarket support for the 2JZ and compatibility with the Polaris transmission.

Polaris Slingshot with a turbo 2JZ inline-six

Scott’s Friend found him a Lexus IS300 with a naturally-aspirated 3.0 L 2JZ-GE inline-six and 200,000 miles. Scott turned to his Father, an experienced engine builder to breath new life into the motor. Together they installed Eagle rods, JE pistons with 8.5:1 compression, new valve springs, BorgWarner 66 mm turbocharger, and AEM Inifity ECU.

Polaris Slingshot with a turbo 2JZ inline-six

Polaris Slingshot with a turbo 2JZ inline-six

Scott installed the motor using custom mounts and replacing the front sump oil pan with a rear sump oil pan. He also installed an AEM Carbon 5 digital dash since the factory Slingshot dash would no longer work. The turbocharged 2JZ produces 400 horsepower to the wheels. Scott wants to raise that to 500+ horsepower in the coming months.

Polaris Slingshot with a turbo 2JZ inline-six

Polaris Slingshot with a turbo 2JZ inline-six

The Slingshot’s MA5 five-speed manual is based on the Aisin AR-5 transmission and shares the same bellhousing-to-case bolt pattern. So Scott was able to bolt the Slingshot transmission to the 2JZ using a stock Toyota bellhousing. He upgraded to a Drift Motion Stage 2 clutch and lightweight flywheel.

Polaris Slingshot with a turbo 2JZ inline-six

Polaris Slingshot with a turbo 2JZ inline-six

Scott did not stop at the powertrain. He also installed a custom Ridetech/Accuair suspension by Rev Dynamics in Texas. The system features Shockwave Air Shocks, Accuair E-level controller kit, and two air tanks located next to the driveshaft. The Slingshot rides on a set of Chip Foose F150 Outcast wheels with Hankook Ventus V12 tires.

Polaris Slingshot with a turbo 2JZ inline-six

Polaris Slingshot with a turbo 2JZ inline-six

Polaris Slingshot with a turbo 2JZ inline-six

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