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Brand New Supertech Performance Dual Valve Springs, Titanium Retainers, and Spring Seats for:
07+ Nissan GTR, GT-R, VR38, VR38DETT 3.8L V6 24v Engines
Spring Kit Part # SPRK-TS1012/GTR
consisting of 24x SPR-TS1012/GTR, 12x RET-TS5.5/T8, 12x RET-TS5.5/T9, 24x, SEAT-TS/GTR
Supertech Valvetrain has proven in a variety of motorsports applications from mild 150 horsepower street engines to 1000+ Horsepower race cars. Don't be fooled by lesser quality valvetrain components, stick with Supertech and get the quality you deserve for your project that will fit right the first time and offer superior performance and longevity.
Supertech Valve Springs are made with premium Superclean Chrome Silicone Vanadium Steel alloy for higher performance and durability at high RPM's and better memory. Computer Designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue for long durability under extreme conditions. Computer software also allows us to make sure that the harmonics are well under control.
The Supertech Retainers are manufacturer with high quality military certified Titanium alloy, CNC machined for a tight fit that will ensure a long durability.
Outer Spring -- 27.50mm OD -- 20.00mm ID
Inner Spring -- 20.00mm OD -- 15.20mm ID
16.00mm Max Net Lift
20.00mm Coil Bind
10.50 lbs/mm Rate
-Stainless steel Intake Valves coated with Black Nitride NIVN 1062
-Inconel Exhaust valves NEVI 1062
This is a hardening treatment that even though it is not widely used as the chrome coating, it has several benefits and is becoming very popular, mainly for European and Japanese applications.
Supertech applies more than 30 years of experience in the development of each and every Supertech racing valve we sell. Combine this experience with state of the art equipment such as ultrasonic tests, x-rays, laser measurement equipment, and applications like computerized Finite Element Analysis (FEA) and it is no wonder why supertech has some of the best performance products on the market.