HKS 21004-AN020 Capacity Upgrade Kit HIGH RESPONSE for NISSAN Sklyline GT-R (R32/R33/R34) RB26 2.8L
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This item is considered special order and is not available for immediate pickup or dispatch. Price and ETA may vary. Please note that no returns, cancellations, or refunds allowed on special orders.
Pickup available at Kelberg Warehouse
Usually ready in 24 hours
HKS 21004-AN020 Capacity Upgrade Kit HIGH RESPONSE for NISSAN Sklyline GT-R (R32/R33/R34) RB26 2.8L
Kelberg Warehouse
Pickup available, usually ready in 24 hours
Auf der Struth 4
53539 Kelberg
Germany
Nürburgring Showroom
Pickup available, usually ready in 24 hours
Nürburgring Boulevard 2
53520 Nürburg
Germany
Piston Kit + Connecting Rods + Crankshaft
Capacity upgrade kit brings the best of tuning to the legendary inline 6 and focuses on engine response and pleasure of driving.
Specifications
| HKS 2.8L KIT | Stock | |
|---|---|---|
| Bore | 87.0mm | 86.0mm |
| Stroke | 77.7mm | 73.7mm |
| Compression Ration (t=1.2) | 8.7 | - |
| Max RPM | 9,000rpm | 7,600rpm |
| Displacement | 2,771cc | 2,568cc |
Lightweight and reinforced parts for ultimate high response
Piston Kit, Piston weight:324g
- Lightweight A2618 aluminum alloy billet piston with high temperature strength
- Billet parts with lightweight design
- Improved structural rigidity with Bridge construction
- 2 layers of molybdenum coating to eliminate friction and improve initial functionality of the whole system.
- Short piston pit with lightweight boss part.
- Φ22 Piston pin with improved torsion rigidity
- Utilizing shortened pin allows to avoid excessive weight while switching from smaller φ21mm one.
Crankshaft Stroke 77.7mm
- Billet full counter crankshaft
- Counterweights are efficiently located to decrease overall weight and improve overall balance.
- Maximum output capacity is decreased to 700 hp in favor of improved response of the engine, possible thanks to minimized to the limits counterweights
Connecting rods
- Nickel Chrome Steel Billet H-Beam Connecting rods.
- Φ22 Piston Pin
- WPC treatment to improve strength
CAPACITY UPGRADE KIT RB26 2.8L LINEUP
| STEP ZERO | STEP 1 | STEP 2 | NEW STEP 3 | NEW HIGH RESPONSE | |
|---|---|---|---|---|---|
| Concept & Target | Capacity upgrade in engine O/H Mainly driving in street Improve response at an affordable price |
Improve torque & power by capacity and turbo upgrade Increase allowable RPM by high lift camshaft |
Increase more power by big turbo without losing response Increase allowable RPM by high lift camshaft Mainly for track race |
Next stage of STEP2 in high power and response Latest technology for ultimate performance |
Ultimate response with new designed ultra lightweight components Latest technology for ultimate performance |
| Recommend Turbo | Stock GTIII-SS | GTIII-SS GTIII-2530 | GTIII-RS GTIII-4R | GTIII-5R | GTIII-2530 |
| Allowable RPM | 8000rpm | 8500rpm | 9000rpm | 9000rpm | 9000rpm |
| Comp. ratio (t=1.2) | 8.7 | 8.7 | 8.7 | 8.7 | 8.7 |
| Max power (approx.) | 550PS | 600PS | 800PS | 900PS | 700PS |
| Piston | Forged φ86.5 or 87 - 21pin | Forged φ86.5 or 87 - 21pin | Forged φ87 - 21pin Nickel plating OBER coating |
A2618 alloy billet φ87 - 22pin Bridge Structure Double-layer MOLYBDEN coating |
A2618 alloy billet φ87 - 22pin Bridge Structure Double-layer MOLYBDEN coating |
| Piston Weight | 401g | 401g | 401g | 324g | 324g |
| Piston Pin | φ21 (105.2g) | φ21 (105.2g) | φ21 (105.2g) | φ22 (97g) | φ22 (97g) |
| Connecting Rod | HKS Forged billet H-beam φ2 (SCM) |
HKS Forged billet H-beam φ21 (SCM) |
HKS Forged billet H-beam φ21 (SNCM) |
HKS Forged billet H-beam φ22 (SNCM) |
HKS Forged billet H-beam φ22 (SNCM) |
| Crankshaft | Forged lightweight full counter (20.1kg) |
Forged full counter (24.4kg) |
Forged full counter (22.9kg) |
Billet full counter (20.6kg) |
Billet full counter (19.3kg) |
| Moment of inertia Ratio ?to STEP ZERO) |
100% | 132% | 119% | 113% | 102% |
| Allowable Torque | 55 kgf?m | 60 kgf?m | 80 kgf?m | 120 kgf?m | 70 kgf?m |