Build a Better Turbo Motor with Go Fast Bits

Australians love horsepower. So it comes as no surprise that an Aussie engineer decided to design and manufacture his own turbocharged engine components when he couldn’t find parts that met his standards. And we’re thankful that he decided to name his stuff Go Fast Bits and offer them to the rest of us power-mad hot rodders.

Summit Racing carries these Go Fast Bits products:

G-Force III Boost Controllers
Whether your car is a daily driver or an all-out track weapon, the G-Force III Boost Controller will help you set up and control turbo boost levels. You can program up to six boost presets and select one on the fly and adjust peak boost, rise rate, and closed loop correction. One feature we really like is scramble. It lets you increase or decrease boost for a set amount of time (up to 100 seconds) using a remote button or switch. This feature can be used to launch a car at low boost, then activate a high-boost preset further down the track. On the street, you can preset a lower highway boost level and use scramble to increase boost for passing. You can even lower boost pressure to safeguard the engine if your water/methanol injection system’s coolant tank goes empty or outside temperatures are very high.

Another important G-Force III feature is the ability to monitor and display your engine's air/fuel ratio in either Lambda or AFR--just connect the analog output of a wideband oxygen sensor controller (Innovate LC-2, AEM UEGO, etc.) to the G-Force III's auxiliary input. You won’t need a separate AFR gauge, and the controller can save your engine from damage due to a lean air/fuel mixture at high boost. When the G-Force III senses a lean mixture issue, it automatically lowers boost to the minimum setting and flashes the display lighting to alert you.

Other features include:
• Handles up to 50 PSI of boost
• Displays boost pressure in PSI, BAR, or KPA
• Peak boost recall
• Adjustable overboost and lean mixture warning/boost cut
• Touchscreen with user-selectable illumination colors
• Auxiliary input to switch boost presets or activate scramble feature
• 1/2 DIN size casing, fits standard stereo slot
• MAC 3-port solenoid included

External Wastegates
Go Fast Bits says its external wastegates are the most compact on the market without sacrificing flow. The inlet flange features a tapered entry for a smooth transition from the exhaust pipe into the valve, and the seat I.D. is larger than other wastegates of the same size for extra flow.
The wastegates have an investment-cast body made from high-temperature stainless steel; a CNC-machined billet stainless steel valve; CNC-machined billet aluminum actuator housing; and all stainless steel weld-on fittings and hardware. The diaphragm is Nomex-reinforced silicone, and an internal shroud protects the valve stem from excessive heat and prevents carbon-related sticking.

Go Fast Bits wastegates are available in 38mm, 44mm, and 50mm sizes and use a V-clamp mounting system.

Blowoff Valves
Go Fast Bits makes blowoff valves for a large variety of turbocharged vehicles including Audi, VW, Ford, Mitsubishi, Subaru, and Hyundai/Kia.

The Hybrid Blowoff Valve is the world’s first dual-outlet valve, developed in 1998 by founder John Adrian for his Subaru WRX. By "staging" the two venting outlets at low valve lifts, most of the air is recirculated. As the car is driven harder, the valve opens further and more of the atmosphere venting port is exposed for a louder sound--a benefit that makes it possible to use these valves on cars with sensitive airflow meters that often suffer issues such as backfiring and/or stalling.

Respons TMS Blowoff Valves allow you to infinitely vary how much air is recirculated or vented to the atmosphere. Just twist the adjustment ring to tweak the venting bias adjustment system between full recirculation (silent) and full atmosphere (loud). The Turbo Management System (TMS) technology allows the Respons blowoff valves to return the engine to peak boost up to 30 percent faster than a factory diverter valve when shifting gears, improves throttle response, and offers unlimited boost-holding.

The SV52 Blowoff Valve is just 86mm (3.38 inches) tall and can handle up to 300 PSI of boost. The body is CNC-machined from a single block of billet aluminum and has a one-piece aluminum piston that is stronger and more reliable than a diaphragm at high boost levels. The SV52 has a spring pre-load adjustment system so you can dial it in for optimum throttle response and boost recovery after shifting gears.

Summit Racing also carries Go Fast Bits diverter valves, a single-stage manual boost controller, and a nice underdrive pulley kit for 2008-20 Subaru WRX/STi.