Tomei Oeversize Valve Set Fits Nissan S13/S14/S15 Silvia, 180SX & 200SX SR20DET163401
Quantity exceeds our current inventory for this item.
Additional items will be placed on backorder.
0In Stock - Kirrawee, NSW
Ships in 1-3 business days
Available for back order
Lead time 10-15 Days
Click & Collect available from Kirrawee, NSW
Delivery
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ShareDescription
High Flow, Improved Durability, for Extreme & High Power Applications!
Tuned engines require as much fuel mixture to enter the combustion chamber as possible. So a larger diameter design was selected to optimize flow rates. Due to the extremely high temperature conditions experienced in the combustion chamber during high power runs the durability of the valves was also addressed to improve resistance to high heat conditions.
The TOMEI oversized valves were designed with the above factors and more so with the careful selection of materials to suit these conditions to the precision in the design and manufacturing processes to maximize the intake and exhaust flow rates will make your engine capable of big power when needed most.
FEATURE / SPEC
HIGH FLOW DESIGN・1mm OVERSIZED WAIST SHAPE
1mm oversized valves were designed for increased flow efficiency on both the intake and exhaust sides. The stem has a thinner design for maximizing air flow rate within the port with reduced airflow resistance. This design with the materials used also allowed for a lighter product as well.
■ SURFACE TREATMENT (INTAKE SIDE ONLY)
- Improved Wear Rate
- Improved Fatigue Rate
- Improved heat resistance
-
Improved corrosion resistance
■ HIGH HEAT RESISTANCE
【IN：SUH35 MATERIAL】
The SUH35 material which is known for its high heat resistance properties is usually used for the exhaust side. We chose to use it for the Intake side to suit the demands of today's users for big power applications and for increased life.
【EX： INCONEL 751 MATERIAL】
Since the exhaust side can experience extreme exhaust gas temperatures of 1,000 degrees C (1,832 degrees F) during high power use the Inconel 751 material was no doubt the best option to choose to suit serious needs when every detail counts.
■ PRECISION DESIGN
To maximize the potential of the valves purpose each factor was addressed during the design process from the surface of the valve head (umbrella section) & the Valve Seat, from Stem to Cotter are all optimized with precision for optimum operating & sealing capabilities when needed most during extreme conditions.
SPECIFICATIONS
Valve Diameter
IN: 35.15
EX: 31.15
Stem Diameter (mm)
IN: 5.970
EX: 6.940
Length (mm)
IN: 101.40
EX: 102.10
Material
IN: SUH35
EX: INCONEL 751
Notes: SHEET CUT IS REQUIRED.
Vehicle Compatibility:
- Nissan S13 Silvia & 180SX (SR20DET)
- Nissan S14 Silvia & 200SX (SR20DET)
- Nissan S15 Silvia & 200SX (SR20DET)
Specifications
SKU 163401
Availability 10-15 Days
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