Kelford Nissan RB25 Race Spring and Seat Set
NISSAN RB25DE-DET (with NVCS). High performance valve spring set
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Kelford Nissan RB25 Race Spring and Seat Set
Upgrade your Nissan RB25 engine with the Kelford Race Spring and Seat Set, designed for optimal performance and reliability. This comprehensive set includes 24 high-quality springs and 12 precision-engineered spring bases specifically for the exhaust side, ensuring even installation heights and enhanced engine efficiency.
With a robust 83lb at 30.40mm installed height on the intake and 80lb at 30.65mm on the exhaust, these springs are engineered to withstand the demands of high-performance racing environments. The set supports a maximum lift of 10.50mm, making it an ideal choice for enthusiasts looking to push their vehicle's capabilities.
- Includes 24 springs and 12 exhaust-side spring bases
- 83lb at 30.40mm installed height on intake
- 80lb at 30.65mm installed height on exhaust
- Supports up to 10.50mm maximum lift
- Designed for Nissan RB25 engines
- Enhances engine performance and reliability
Choose the Kelford Nissan RB25 Race Spring and Seat Set for superior engine performance and durability, ensuring your vehicle is race-ready.
| Product Name | Kelford Nissan RB25 Race Spring and Seat Set |
|---|---|
| Brands | Kelford |
| Engine | RB25 |
| Make | Nissan |
Delivery & Freight
We are an Australian-based company that ships items nationally and internationally, usually within 48 hours of receiving your order. High-value items shipped internationally are sent via DHL Express, while lower-value items are sent via Australia Post Express unless otherwise instructed.
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What information do I need to match these pistons to my engine?
You need the engine code, bore size, stroke, rod length, pin diameter and target compression ratio. These determine the correct piston compression height and crown design.
How should ring gaps be set for these pistons?
Ring gaps must be set by your engine builder based on fuel type, boost level and the intended rpm range. Forced-induction engines usually require larger gaps.
Are forged pistons suitable for street engines?
Yes. Forged pistons handle detonation and high cylinder pressure better than cast units. Your builder should set the piston-to-bore clearance to suit your application.
What is the maximum lift supported by the Kelford RB25 Race Spring and Seat Set?
The Kelford RB25 Race Spring and Seat Set supports a maximum lift of 10.50mm. Ensure your camshaft specifications align with this lift to avoid spring bind.
What are the installed height specifications for these valve springs?
The intake springs are rated at 83lb at an installed height of 30.40mm, while the exhaust springs are rated at 80lb at 30.65mm. Proper installation height is crucial for optimal performance.
Can I use these springs with stock RB25 camshafts?
While these springs can be used with stock camshafts, they are designed for high-performance applications. Ensure that your camshaft lift does not exceed the maximum supported lift to maintain reliability.
Do I need to machine the spring seats for installation?
It's recommended to check the spring seats for proper fitment and alignment. Depending on your engine's condition, machining may be necessary to ensure even installation heights and optimal performance.
How many springs and bases are included in the Kelford RB25 Race Spring and Seat Set?
The set includes 24 high-quality valve springs and 12 precision-engineered spring bases specifically for the exhaust side, ensuring a complete upgrade for your RB25 engine.
