Dial in launch, response, and drivability with a custom-built high-stall matched to your cam, gearing, and power curve. Browse examples below, then submit the request form.
A torque converter is a fluid coupling that connects the engine to the transmission. Instead of a clutch, it uses transmission fluid to transfer drive so the vehicle can sit in gear at idle and move off smoothly.
Inside are three main components: the impeller (or pump) welded to the converter cover and driven by the engine, the turbine splined to the transmission input shaft, and the stator mounted between them on a one-way clutch. As the impeller spins, it throws oil outwards into the turbine blades, creating torque that turns the gearbox.
At low vehicle speed there is a big difference in speed between the impeller and the turbine. The stator redirects the returning oil back into the impeller, multiplying torque and helping the car launch. As road speed comes up and the turbine speed matches the impeller, the converter behaves more like a direct coupling and the multiplication effect drops away.
A custom high-stall converter changes the internal stator, fin angles and clearances so the engine can reach its power band before the car leaves hard off the line, while still retaining street manners for normal driving.
Our high-stall converters are built using race-proven techniques and components so they live behind serious power as well as daily driven street combos.
Each build is tailored to your combo, but most fall into one of these three families. Talk to us if you are unsure which tier fits your car best.
Built for strong street cars that still see regular traffic duty. Bolt-in installation with no chassis mods required.
Uses our racing experience and software modelling to suit supercharged, turbocharged or naturally aspirated engines that live higher in the rev range.
Virtually unbreakable race converters, typically 7–11 inch units, designed for drag cars and serious competition applications.
