Every week this build gets more and more interesting as we dive deeper into the inner workings of the BRZ. For this installment, we peel back the layers of the engine to understand what we have to work with, and where it can be improved in relation to our initial build objectives. As with any good build, you define an objective based on what you have to work with. In order to properly understand what we had to work with first hand, it was necessary that we dive into the platform’s heart. This time, we turned to SCR Performance because of their intimate knowledge of Subaru drivetrains, as well as their reputation as top engine builders. We knew they would give an accurate assessment of what areas we’d need to address as the build progresses.
Welcome back; it’s been a while! We’ve been hard at work getting down to business with our Pikes Peak Airstrip Attack and the Pikes Peak International Hill Climb, both part of the Pikes Peak Speed Week. While we were running around losing our minds, SCR Performance was hard at work making great progress with the BRZ build. Last time, we covered what it takes to build a bottom end stout enough to handle our power demands. This week we’re diving into the cylinder heads to see how SCR improved the breathing capacity of the FA20/4U-GSE.
Throughout the past few articles you’ve learned about the improvements we’ve made to the strength of the engine, and beefing up the fuel and cooling systems. This install we reveal why all of those modifications were necessary: forced induction.
One of the biggest let downs about the BRZ/FR-S was the lack of a turbocharged option. It seemed so simple, just pull the motor from the WRX and, voila, boost! Instead we were left with a car that, while well balanced, just wanted enthusiasts begging for more. Thankfully there is a healthy aftermarket that was practically frothing at the mouth at the opportunity to add forced induction.
And we’re back! Though Mother Nature didn’t cooperate for TX2K14, it didn’t dampen our spirits because we knew back home some good things were happening with Project BRZ. We’re back into the mix with our weekly documentary of the progress. To bring you up to speed, the engine is off to the machine shop where they can work their magic and we’re waiting on the remainder of the build’s components to arrive, including the widebody parts that we just finished up sourcing.
In this installment we crack open the box of our new Air Lift Performance Digital Combo Kit suspension and let you know what we found, compare and contrast to the stock suspension, and provide an initial assessment.
Last week we gave you a behind the scenes look at the magic SLVA was conjuring up with the creation of the wide-body for our BRZ. In this installment, we change our focus to the drivetrain build as we’ve had lots of inquiries into what will motivate this beast.