Performance Springs Nissan CA18 Valve Spring Kit
For shipping cost -add all the products you would like, then navigate to the shopping cart to calculate shipping quote.
Valve Spring Set for Nissan CA18 Engines
A direct-replacement valve spring pack designed for CA18 applications requiring improved control at higher RPM or moderate camshaft upgrades. The spring rate supports lift values up to 10.5 mm while maintaining stable operating pressures.
Spring Characteristics
- Seat Pressure: 85 lbs
- Open Pressure: 185 lbs at 10 mm lift
- Maximum Valve Lift: 10.5 mm
Designed for drop-in installation using factory retainers.
| Product Name | Performance Springs Nissan CA18 Valve Spring Kit |
|---|---|
| Brands | Performance Springs |
| Engine | CA18 |
| 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.
You can calculate shipping rates inside the shopping cart. After adding all the products you would like, navigate to the cart and click the ESTIMATE SHIPPING & TAX link. .
If you only see the Click and Collect shipping option, it means that your address was not validated correctly.
If you have issues calculating freight, please get in touch. We are happy to help.
Disclaimer:
Product images are for description purposes only. Actual product may vary.
Shipping calculations available at checkout.
If you are unsure, get in touch by emailing [email protected], messaging us on Facebook, or phoning us at +61 7 5645 1333 (8am to 2pm AET).
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 valve lift supported by the Nissan CA18 Valve Spring Kit?
The Nissan CA18 Valve Spring Kit supports a maximum valve lift of 10.5mm. Ensure that your camshaft is compatible with this lift to avoid coil bind and ensure optimal performance.
What are the seat tension and open pressure specifications for these valve springs?
The valve springs in this kit have a seat tension of 85 lbs and an open pressure of 185 lbs at 10mm lift. These specifications are designed to maintain valve control at higher RPMs.
Is installation of the Nissan CA18 Valve Spring Kit straightforward?
Yes, the Nissan CA18 Valve Spring Kit is designed for easy installation as a simple drop-in set. However, it's recommended to follow proper procedures for valve spring installation to ensure reliability.
Can I use these valve springs for both street and track applications?
Yes, the Nissan CA18 Valve Spring Kit is suitable for both street and track applications. They are engineered to handle the demands of high-performance driving, providing durability and reliability under increased stress.
Do I need to modify my cylinder head to use these valve springs?
Typically, no major modifications are required to install the Nissan CA18 Valve Spring Kit. However, it's important to check for proper clearance and compatibility with your existing setup, especially if using high lift camshafts.
