Thursday, February 22, 2018

Scion FR-S Throwout Bearing Failure & Repair - Clutch Kit Install

We just finished up a clutch install and throwout bearing replacement on a customers' Scion FR-S. The throwout / release bearing failure is a very common issue that we see on many Scion FR-S and Subaru BRZ factory cars.  The bearing itself is weak, and it will fail, which can cause clutch judder and noise, or a complete failure of the system that renders the car inoperable.  This car was towed in  to our shop and we got right to work fixing it up. Read on to see why this issue happens, how to fix it, and how to avoid making it worse! 




Monday, February 19, 2018

2017 Autocross Victory - A Clean Sweep for J. McDonald

It was a very eventful 2017 Autocross season for our sponsored driver, Justin McDonald, who not only took home first place in the SMST4 class overall, but also took home the trophy for the 2017 Prepared Class Champion! Not to mention he received the Mercury Award and grabbed a total of FOUR Top Time of Day awards! 



Tuesday, December 19, 2017

Subaru BRZ Turbo Build - Full Race & BW EFR 7163 Turbo - Part 2



Previously we installed the meat and potatoes of the Full-Race turbo kit including the turbo itself, exhaust piping, FMIC, and a few other goodies (Which we covered in PART 1).  With everything in the engine bay looking good we moved to the interior of the car to get the gauges and boost control working.

Subaru BRZ Turbo Build - Full Race & BW EFR 7163 Turbo - Part 1



This BRZ came to us bone stock, and the owner had some idea on what he wanted, but wasn’t exactly sure how to go about it.  His goal was to install a turbo kit into his BRZ and have it tuned so we could raise the horsepower and torque levels to something a bit more enjoyable that the factory 200hp rating.  We sat down with the owner and went over our suggestions for the appropriate turbo and kit for his goals and budget.  He wanted to “do it right” and not go the cheap route on the kit or parts.  With that in mind we suggested a Full-Race turbo kit paired with an BW EFR turbo.  The two options were for the 6258 or the venerable 7163. He opted for the larger 7163 so that he would have some headroom later to raise power levels, plus he liked the fact that the turbo is used in Indy racing!

Tuesday, December 12, 2017

SCCA 2017 Runoffs Victory ~ 1-2 Finish and a Championship Win



Circuit Motorsports has been working closely with Dynasty Racing to dial in their fleet of GT86 race cars throughout the 2017 season as their exclusive ECU tuner. The team enjoyed many successes with 4 victories and 4 separate track records between the three teammates.  It all culminated during SCCA Runoffs held at famed Indianapolis motor speedway, where they fielded 3 cars and almost came home with a full podium sweep, but there was a little drama on track...