Performance Springs Nissan VG30DET Valve Spring set
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Valve Spring Set for Nissan VG30DET Engines
This spring pack is designed for VG30DET engines requiring enhanced spring load to support increased valve acceleration under higher boost or elevated RPM conditions. The rates match the requirements of the VG-series quad-cam valvetrain.
Spring Characteristics
- O.D.: 1.085"
- I.D.: 0.780"
- Installed: 85 lbs at 34.8 mm
- Open: 185 lbs at 10 mm lift
- Maximum Valve Lift: 10.5 mm
- Coil Bind: 0.890"
Direct-fit installation using factory retainers and keepers.
| Product Name | Performance Springs Nissan VG30DET Valve Spring set |
|---|---|
| Brands | Performance Springs |
| Engine | VG30 |
| Make | Nissan |
Delivery & Freight
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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 valve lift these springs can handle?
The Performance Springs for the Nissan VG30DET are rated for up to 10.5mm of valve lift. Ensure your camshaft specifications are compatible with this lift to avoid coil bind.
Can I use these springs with stock retainers?
Yes, these valve springs are designed as a drop-in setup and can be used with the stock retainers and locks, making installation straightforward.
What is the spring pressure at 10mm lift?
At 10mm of valve lift, these springs provide a pressure of 185 lbs. This is suitable for performance applications where higher lift is required.
What should I check for when installing these valve springs?
When installing these valve springs, ensure that the coil bind does not occur at .890 inches. It's also important to verify that the installed height is correct to maintain proper spring pressure.
Are these springs suitable for high RPM applications?
These springs are designed for performance use and can handle higher RPMs typical of modified VG30DET engines. However, always ensure proper installation and matching with your engine's overall setup to maintain reliability.
