Description
Tomei RB28 Stroker Kit 86.5mm With Recess For Nissan Skyline R33 R34 GTR
Genuine Tomei Japan Product
Tomei RB28 Stroker Kit With Recess – Fits Nissan Skyline R33 R34 RB26
You’ll experience dramatical changes in the RB25 with just the increase of 200cc in displacement. Superior response throughout, with just the slight changes in the throttle. Big torque with an overhwelming feeling of acceleration. Allows more room to grow with the ability to leverage the potential of larger turbos. Made from forged alloy for added strength, with the precision that you’d expect from TOMEI. Uncomparable with standard parts, and best value for money. Even to this day, the RB Engine is one of the most popular sports engine to tune. True to it’s form, the TOMEI RB28 KIT completes this true race engine.
Piston Specs
Bore 86.5
Pin Dia 21.0
Length 60 mm
Recess Yes
Comp.Height 30 mm
PistonCrownVolume -11.2 cc
Weight 363 g
Pin weight 106 g
Total weight 469 g
Top ring B×T(mm) Second ring B×T(mm) Oil ring B×T(mm)
1.2×3.1 1.2×3.9 2.5×3.1
CRANKSHAFT
Stroke (mm) Weight (kg) STD Stroke (mm)
77.7 20.0 73.7
CONNECTING ROD
Conrod
Length(mm) 119.5
L.Diam×Length(mm) φ51×21.8
S.Diam×Length(mm) φ21×21.8
L.Diam×Length(mm) φ51×21.8
S.Diam×Length(mm) φ21×21.8
Conrod Bolt
Bolt Size 3/8-24
Height Under Neck(mm) 40
Conrod Bearing
Inner Circum(mm) 48
Bearing Width(mm) 17.0
Material
SNCM439
Compression Ration Specs
Bore φ86.5 φ87.0
Valve Recess Without With Without With
Piston Crown Volume(cc) -13.0 -11.2 -13.0 -11.2
Valve Recess Without With Without With
Piston Crown Volume(cc) -13.0 -11.2 -13.0 -11.2
Gasket Thickness (mm)
1.0 9.0 8.7 9.0 8.8
1.2 8.8 8.6 8.9 8.6
1.5 8.6 8.3 8.6 8.4
1.8 8.3 8.1 8.4 8.2
2.0 8.2 8.0 8.3 8.1
Gasket Bore 87.5 88.0
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