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Supertech Valves (EJ20/EJ25)
Production of our racing valves begins with a one piece forging, where the head of the valve is forged under a slow two step process to keep a good material grain flow. The forging is then CNC machined in several steps to ensure the precision of the final dimensions. We then do another heat treatment for stress relieving followed by a nitride hardening treatment (or coating process depending on the application). Lastly, we do one more grinding, followed by our patented Superfinishing of the surface to ensure that each valve is free of any imperfections and the dimensions are precise.
ONE PIECE VALVE
Our valves are not finished from generic blanks rather they are specifically designed for each and every application. We work relentlessly, testing and researching every aspect of trying to improve the airflow of our designs.
DURABILITY
With every valve design, we strive to maximize durability through higher fatigue resistance and tensile strength. Each valve tip is hardened beyond 52HRc.
STRICT TOLERANCES
Its unlikely you will find any of our competitors valves with stricter dimensional tolerances than our Supertech valves. Combine that with finished seats with an equally strict run out tolerances and you wont find a better sealing, better performing and easier to install solution anywhere!
SUPERFINISH
In 2006 we introduced our stem Superfinishing as a standard addition to all of our valves and provided it at no additional cost. When our Superfinish is combined with our Black Nitrided valve it reduces the surface roughness to 1/3 of our chrome coated valve. The end result unsurpassed performance and durability.
HIGHER FLOW RATES
Optimum high flow rates are achieved by ensuring that our valves are manufactured with the best angles for each application. We consider back cut, undercut and valve head angles for each application to produce the optimum high flow rates for each application
SKU
Supertech EJ20/EJ25 Turbo Valves
Located in San Jose, California in the heart of Silicon Valley, Supertech was born from the same fertile ground as many other companies in this area utilizingcutting edge technology to fuel growth.
Supertech fuses this technology with passionate people and over 30 years of experience in creating the highest performance valves and valve train components available.
Supertech provides the racing market with superior valves and valve train components for virtually every type of racing. Whether it’s Drag Racing, Rally, Road Racing or any other type of motorsport, Supertech is sure to have the perfect performance solution for your application. If not, we are always willing to work with you to custom manufacture the solution that is just right for you.
| Model | Fitment Confirmation |
|---|---|
| EJ205 | ✓ |
| EJ255 | ✓ |
| EJ257 | ✓ |
WARNING: Operating, servicing and maintaining a passenger vehicle or off-road vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to P65Warnings.
| SKU | Supertech EJ20/EJ25 Turbo Valves |
|---|---|
| Brand | Supertech Valves |
| Product Type | Engine |
| Engine | Cylinder Heads and Valvetrain |