Nissan RB30DET (RB25NEO Head) Spool H Beam Conrods and CP Forged Pistons (9.0:1)
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These CP forged pistons are available in 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 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 H 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.
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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 clearances for the CP forged pistons in the RB30DET?
The recommended bore clearance for the CP forged pistons in the RB30DET is typically around 0.0020" to 0.0025". However, it's crucial to consult with your engine builder to determine the exact clearance based on your specific application and tolerances.
What compression ratio do the CP pistons provide for the RB30DET?
The CP pistons included in this kit provide an estimated compression ratio of 9.0:1 when used with the RB25 NEO cylinder head. Ensure that your engine's overall setup, including camshaft and boost levels, is compatible with this compression ratio for optimal performance.
How should I torque the ARP bolts on the Spool conrods?
For the Spool conrods featuring ARP2000 bolts, torque them to approximately 55 ft-lb using ARP Ultra-Torque lubricant for 3/8" bolts and around 75 ft-lb for 7/16" bolts. Always refer to ARP's latest instructions for the most accurate specifications.
Do the conrods require any specific machining before installation?
Yes, the conrods may require big-end or small-end honing due to factory journal and pin size variations. It's essential to check the fitment and clearances before installation to ensure proper performance and reliability.
What type of oil should I use for break-in with this engine kit?
For break-in, we recommend using Joe Gibbs Break in Oil for all new engines. This oil helps to ensure proper lubrication and protection during the critical initial running period of your RB30DET engine.
