SKU: KT4016
Ferrea Nissan GT-R VR38DETT Single Spring Kit 2009-2024
The Ferrea Nissan GT-R VR38DETT Single Spring Kit KT4016 equips 2009-2024 R35 GT-R models with 3.8L twin-turbo engines for precise valve control at extreme RPMs. This kit features 24 single valve springs and 24 titanium retainers designed specifically for the VR38DETT valvetrain. It maintains stability during high-lift camshaft applications while reducing reciprocating mass for quicker revving.
Key Features
- Premium Super Alloy Steel Springs: Deliver seat load of 140 lbs at 1.800″ install height and 380 lbs open load at 0.475″ lift for consistent pressure retention over thousands of cycles
- Titanium 10 Degree Retainers: Lightweight construction cuts valvetrain inertia by 40% compared to steel reducing valve float risk at 10,000+ RPM
- Optimized Dimensions: 1.181″ outer diameter 0.630″ inner diameter supports up to 0.500″ maximum lift with zero coil bind
- Direct Bolt-On Fit: Matches OEM valve stem and guide dimensions for seamless integration into VR38DETT cylinder heads
- High Fatigue Resistance: Endurance tested for turbocharged racing conditions ensuring longevity in street and track use
Product Notes
- Kit contains 24 springs and 24 retainers complete valvetrain upgrade
- Pair with Ferrea valves for full valvetrain refresh
- Ships in protective foam-lined box 10 x 8 x 6 inches
Installation Notes
- Professional installation recommended.
- Use dedicated VR38DETT valve spring compressor tool
- Compatible with stock lash caps and valve locks no modifications required
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2009-2015 | Nissan | GT-R | Base |
| 2009-2015 | Nissan | GT-R | Premium |
| 2014-2015 | Nissan | GT-R | NISMO |
| 2017-2024 | Nissan | GT-R | Premium |
| 2017-2024 | Nissan | GT-R | Track Edition |
| 2017-2024 | Nissan | GT-R | NISMO |
Why Choose Ferrea?
- Proven in NHRA and Formula Drift GT-R builds
- USA-made with aerospace-grade materials
- CNC-machined for micron-level tolerances
Frequently Asked Questions
- Q: Will this kit fit NISMO GT-R models?
A: Yes KT4016 fits all 2009-2024 VR38DETT engines including NISMO Premium and Track Edition with identical valvetrain specs - Q: What materials are used in construction?
A: Springs from proprietary super alloy steel retainers from 6AL4V titanium both heat-treated for maximum strength and fatigue life - Q: What is the warranty coverage?
A: Ferrea offers limited lifetime warranty against manufacturing defects when installed by certified technician
Shipping & Handling
- Method: UPS Ground or FedEx standard freight
- Availability: In stock – ships same or next business day
- Packaging: Secure foam inserts in 10 x 8 x 6 inch corrugated box
- Weight: 4.2 lbs
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