HKS 21004-AN021 CAPACITY UPGRADE KIT RB26DETT 2.8L STEP3

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CAPACITY UPGRADE KIT RB26DETT 2.8L STEP3

This is a high-strength kit that demonstrates durability even in high-power, high-spec vehicle specifications.

Piston kit + connecting rod + crankshaft

Features
This is a high-strength kit developed for use with high power.

(1) Piston kit Piston weight: 324g

Thin wall thickness is achieved by using A2618 material, which is strong against high temperatures.
By manufacturing it by cutting, excess wall thickness is eliminated.
By adopting a bridge structure, structural rigidity is increased.
The two-layer molybdenum coating improves initial break-in and reduces friction.
By shortening the piston pin, the boss part is lighter.
By adopting a φ22 piston pin, bending rigidity is improved.
By making the piston pin thinner and shorter, the weight increase from the conventional φ21 pin is eliminated.

(2) Crankshaft Stroke: 77.7mm

A machined full counter crankshaft is adopted.
In order to reduce the burden on the main bearings under high power output, the counterweight is efficiently increased and the balance rate is increased.
To accommodate maximum output, the material has been changed to nitrided steel and ion nitriding has been applied to increase surface hardness, thicken the hardened layer, and improve durability.
(3) Connecting rod

A machined H-section connecting rod made of nickel-chrome steel is used.
Compatible with φ22 piston pins.
The surface has been WPC treated to improve fatigue strength.