[Complete engine RB26DETT 3.0L STEP3 V-CAM]
The pinnacle model of the RB26 complete engine.
Newly developed 2-piece piston realizes increased stroke and connecting rod length while maintaining block height.
- The 3.0L dedicated crank is a full counter machined from nitriding steel, and ion nitriding treatment has increased the surface hardness to the limit and improved fatigue strength.
- In preparation for higher torque, a dedicated I-section connecting rod is used to improve buckling strength by 36%. In addition, we also adopted a φ22 thicker piston pin.
- As a countermeasure against the heat generated by the high power output, the valve guide and seat materials have been changed, and a sodium-filled EX valve and a piston with a cooling channel have been adopted.
- The 36-tooth dedicated crank angle sensor and crank angle sensor for V-CAM have improved signal accuracy in the high revolution range.
*It is recommended to use HKS Racing Pro 10W50 engine oil.
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Dedicated full counter crank
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Dedicated I-beam connecting rod with 36% higher buckling strength and 6mm longer shaft distance
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Changed the valve seat to beryllium and the guide to phosphor bronze to improve the heat transfer performance of the valve.
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By making the piston two pieces and raising the pin position, it became possible to reduce the compression height. This made it possible to lengthen the connecting rod and increase the length of the rod without increasing the deck.
In addition, the piston is super lightweight at 313g and has a cooling channel for oil cooling. -
2-piece piston
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V CAM dedicated crank angle sensor 36-2 teeth
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IN side: V CAM STEP Pro
EX side: 280° STEP2
Reinforced blow-by separator reduces oil take-out
Specifications
| HKS 3.0L(V-CAM) | genuine | |
|---|---|---|
| boa | 87.0mm | 86.0mm |
| stroke | 84.0mm | 73.7mm |
| Compression ratio (t=1.2) | 8.7 | - |
| Allowable rotation speed | 9,000rpm | 7,600rpm |
| Displacement | 2,996cc | 2,568cc |
COMPLETE ENGINE RB26 3.0L STEP3 V-CAM
| camshaft | IN：HKS V-CAM STEP Pro 264°／ LIFT 10mm |
|---|---|
| EX：HKS STEP 2 280°／ LIFT 10mm | |
| blow-by separator | IN/EX HKS reinforced product |
| cam cover | HKS RB30 only (EX side) |
| cam pulley | HKS SLIDE CAM-PULLEY (EX side) |
| Timing belt | HKS Fine Tune Timing Belt |
| spring retainer | HKS Titanium |
| valve | IN: Genuine EX: 1mm big valve (filled with sodium) |
| valve spring | HKS reinforced product |
| stem seal | HKS reinforced product |
| head processing |
Combustion chamber machining (remaining squish), Sheet: Beryllium/Guide: Phosphor bronze, Step removal and polishing around the sheet, Cam escape processing, Water jacket air vent hole processing |
| head gasket | HKS grommet super cooling type (t=1.2) |
| head bolt | HKS reinforced bolt |
| Block (24U) processing details |
Surface grinding (parallelism correction with the main journal), water hole processing, deck surface hole chamfering (crack countermeasures), edge removal processing at the bottom end of the cylinder, boring |
| oil pump | HKS reinforced product |
| piston | HKS 2 piece machined |
| connecting rod | HKS I section axis distance: 127.5mm |
| Crankshaft | Nitriding steel machined full counter ion nitriding treatment |
| main bearing | ACL |
| connecting rod bearing | ACL |
| crank angle sensor | 36-2 tooth Crank direct attachment |
| Ignition system | HKS Super Fire Racing Coil PRO |
| crank damper |
ATI 1000PS specification W/P pulley: Φ124 (ATI) rib belt: 4PK850, 4PK910, 4PK925 |
| covers | baked paint finish |