When 44Mm Isn’T Enough, Give The Exhaust Somewhere To Go.
The Granatelli 540260 60mm piston wastegate is built for large turbocharger systems and high-exhaust-flow combinations that need substantial external boost-control capacity.
Its piston-actuated design , large 60mm valve and V-band installation make it a serious option for drag racing, high-horsepower turbo cars and performance diesel applications.
- 60MM High Exhaust Flow PISTON Actuation Style V-BAND Turbo Installation
Built Around Exhaust Flow
A larger external wastegate can bypass more exhaust around the turbine when required. That makes this 60mm turbo wastegate especially useful for large-frame turbo systems, high-output engines and combinations where an undersized wastegate may contribute to boost creep.
- ✓ Large-frame turbos
- ✓ High-horsepower turbo cars
- ✓ Drag racing
- ✓ Performance diesel systems
- ✓ High exhaust-flow engines
IMPORTANT: This is the 60mm PISTON-ACTUATED wastegate. Select wastegate size according to actual turbo-system flow requirements rather than simply choosing the largest valve available.
Is the 540260 a piston or diaphragm wastegate? The 540260 is piston-actuated. It uses a mechanical piston instead of a flexible diaphragm to open the valve. It is a different part from the 60mm water-cooled diaphragm wastegate, Granatelli 540259 , so check the part number, not just the size, when you order.
Do I need to run coolant lines to the 540260? No. The piston line is the choice for builders who don't want to run coolant to the wastegate. If you want a coolant-cooled actuator, the Granatelli 540259 is the 60mm water-cooled diaphragm version.
Should I choose the piston 540260 or the water-cooled 540259? Pick the piston 540260 for high-heat, drag racing and performance diesel builds, or if you'd rather not plumb coolant. Size the valve first, then pick the actuator.
Is 60mm the right wastegate size for my build? That is a sizing guideline, not a horsepower limit. A 60mm gate is for large-frame turbos, big-displacement engines and very high exhaust flow. A large turbo on a big engine running low boost can need a 60mm gate even at lower horsepower, because the gate has to bypass more exhaust. See 44mm vs. 50mm vs. 60mm Wastegate: What Size Do You Need?
How do the springs set my boost? The installed springs set the mechanical base boost, which is the lowest boost the system will normally run. Choose a spring setup for the lowest boost you want to run safely, then use a boost controller to add boost from there. Use only spring combinations approved for this wastegate, and don't swap in springs from a different size or from a diaphragm gate.
Can I use a boost controller with the 540260? Yes. A manual or electronic boost controller can raise boost above the spring setting when the system is plumbed and tuned correctly. Port functions on a piston gate are not the same as on a diaphragm gate, so use the plumbing diagram for this exact part number before connecting lines or leaving a port open.
What if I still get boost creep? Boost creep means boost keeps climbing even with the wastegate open. A stiffer spring won't fix it. Common causes are a gate that is too small for the turbo and engine, or a manifold that doesn't give exhaust a smooth path into the gate. Check the size and the placement.
Can I run two of these on a twin-turbo or twin-gate setup? Yes. Many twin-turbo systems run one wastegate per turbo or per exhaust bank. Use the same part number on both sides so both gates respond the same way.
