GFB – External Wastegate 50mm
Meet the EX50, a cutting-edge 50mm wastegate designed to tackle extreme exhaust temperatures with ease. Boasting unmatched flow capacity in a compact size, this powerhouse comes with three springs, enabling boost pressures from 7 to 29psi. Crafted from high-temp stainless steel and billet 7075 aluminum, the EX50 outperforms competitors with an 18% higher flow rate. Featuring innovative design elements like an internal valve shroud and a top-hat style Nomex-reinforced silicone rolling diaphragm, this wastegate ensures optimal performance and durability. With 90? banjo-style boost hose connectors and a V-band clamp mounting system, installation is a breeze. Developed using CAD design, the EX50 minimizes unnecessary bulk for maximum efficiency. Endorsed by Joe Signorelli for its stellar performance on high-powered engines, the EX50 guarantees consistent boost even in the most demanding conditions. Elevate your engine’s potential with the compact powerhouse ? EX50.
Engineered to endure the harsh demands of extreme exhaust temperatures, the EX50 stands out with its exceptional flow capacity and unparalleled compact size among 50mm wastegates in the market. This high-performance wastegate comes equipped with three springs, offering versatile combinations for boost pressures ranging from 7 to 29psi. Crafted from high-temp stainless steel, the body, valve, and seat ensure durability, while the actuator housing, precision-machined from billet 7075 aluminum, boasts superior strength compared to conventional 6061 aluminum.
The EX50 excels in flow tests, showcasing an 18% higher outflow than its closest competitor at the same valve lift. Its internal valve shroud safeguards the valve stem from excessive heat, preventing carbon-related sticking. Featuring a top-hat style Nomex-reinforced silicone rolling diaphragm, this wastegate ensures extended valve travel. The 90? banjo-style boost hose connectors and V-band clamp mounting system, along with supplied 304 stainless weld-on adaptors, enhance installation flexibility (with compatibility with TiAl 44 flange through a GFB adaptor).
Our primary objective in developing the EX50 was to create a wastegate with exceptional flow capacity while maintaining a compact form. Employing CAD design allowed us to minimize unnecessary bulk, especially in the actuator area. The effectiveness of the poppet-style valve relies on a smooth and ample bowl area for optimal flow, a feature often overlooked by other brands. Joe Signorelli, renowned for his extensive testing, particularly on high-powered circuit and drag engines, praises the EX50’s outstanding performance. In his own words, “I couldn’t be happier with the way it performs. Our circuit car emerges from races with a glowing manifold, and the boost remains consistent.”
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