Nissan RB30DET (RB25NEO Head) Spool Drag Pro I Beam Conrods and CP Forged Pistons (9.0:1)
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These CP forged pistons are available in 8.5 - 8.7:1 and 9.0:1 compression ratio for the RB30DET (using RB25 NEO cylinder head)
Pistons are available in:
- Bore Size: +0.5mm
- Compression Ratio: est. 9.0:1
- Pistons come with rings, gudgeon pins and pin locks
Spool Drag Pro I Beam connecting rods are the ultimate high strength direct fit con rod for all Nissan RB30 engines.
With new features like:
- Upgraded ARP2000 7/16 bolts
- Increased strength to the beam
- Increased strength around the fasteners / bolts
- Increased strength around the gudgeon pin
Spool Connecting Rods Feature:
- ARP 2000 fasteners (L19 fasteners are available as an upgrade)
- High tensile 4340 forged steel
- 2 Piece forging
- Hardness of HRC36-42
- Dowelled caps for precision alignment
- X-RAY & Sonic tested
- Quenching and heat treated
- Shot peened
- 100% Magnafluxed
- Weight Matched Sets +/- 1 gram
- Vacuum degassed to remove impurities
CP Pistons standard features include:
- 5310 gudgeon pins (9310 thicker wall thickness pins are available as an upgrade)
- Deep valve reliefs accommodate high lift camshafts
- Larger valve reliefs for +1mm valve sizes
- Custom skirt cam and barrel design
- Accumulator grooves
- High strength aluminium forgings
- High performance rings
- Fully CNC machined and balanced to +/- 1 gram
- Wrist pins included
- Double pin oilers force fed from oil ring groove
- Pick lock grooves for easy lock removal
- Pin fitting included
Note: We recommend Joe Gibbs Break in Oil for all new engines.
| Product Name | Nissan RB30DET (RB25NEO Head) Spool Drag Pro I Beam Conrods and CP Forged Pistons (9.0:1) |
|---|---|
| Brands | Spool |
| Engine | RB30DET (DOHC) |
| Make | Holden, Nissan |
Delivery & Freight
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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 is included in a typical Spool engine kit?
Kits usually include pistons, rings, rods, bearings and related hardware depending on the engine family. Check the listing for exact inclusions.
Do I still need machining with a full engine kit?
Yes. The block must be honed and all clearances checked and set by your builder. Assembly should only occur after full measurement and verification.
What are the recommended bore and compression ratio for the SPL-RB30NEO-DP-CP kit?
The SPL-RB30NEO-DP-CP kit is designed for a bore size of +0.5mm and features a compression ratio of approximately 9.0:1. Ensure that the engine builder sets the correct bore clearance and ring gaps according to the specific application.
What type of conrods are included in the SPL-RB30NEO-DP-CP kit?
This kit includes Spool Drag Pro I Beam conrods made from high tensile 4340 forged steel. They come with upgraded ARP2000 7/16 bolts as standard, providing increased strength and reliability for high-performance applications.
Are there any specific machining requirements for the conrods and pistons in this kit?
Yes, the conrods may require big-end or small-end honing due to factory journal and pin size variations. Additionally, ensure that the pistons are fitted with the correct bore clearance and that ring gaps are set properly by the engine builder.
Can I upgrade the fasteners in the SPL-RB30NEO-DP-CP kit?
Yes, the conrods in this kit come standard with ARP2000 bolts, but you can upgrade to L19 fasteners for even greater strength. Always follow ARP’s latest instructions for installation and torque specifications.
What type of oil is recommended for breaking in the engine with this kit?
For breaking in a new engine using the SPL-RB30NEO-DP-CP kit, we recommend using Joe Gibbs Break in Oil to ensure proper lubrication and protection during the initial running period.
