Tomei Powered EJ22KIT/FORGED CRANKSHAFT - Manual (Page 7)

5. ASSEMBLY VERIFICATION
① Check the clearance Piston's skirt and crankweight in relation to each other during rotation.
② Confirm that the Piston does not protrude more than required from the cylinder bore at Top Dead Center.
③ Be sure to calculate the final compression ratio once done.
Ｖ
1
1 Cylinder Displacement (cc)
Ｖ
2
Combustion Chamber Volume (cc)
Ｖ
3
Gasket Capacity (cc)
Ｖ
4
Crown Capacity (cc)
COMPRESSION RATIO REFERENCE CHART
SPECIFICATIONS
PISTON
CONROD
Displacement
(cc)
2123
Diameter
Compression Ratio Reference (With Gasket)
Gasket Bore
Size t=0.7mm t=1.0mm t=1.2mm t=1.5mm t=1.8mm
Φ92.5 8.2 8.0 7.9 7.7 7.6 Φ93.5
Diameter Part Number Compression Height Pin Dia.
Crown
Volume (cc)
φ92.5 1181 925312 31.00 φ23 18.43
Part
C Di
Conrod Conrod Bolt Conrod Bearing
Compression
Ratio
Ｖ
1
Ｖ
2+
Ｖ
3 +Ｖ 4
+1
Ｖ
2
Ｖ
3
Ｖ
1
Ｖ
4
＝
7
CRANKSHAFT
Stroke (mm)
79 (STD:75.0)
125008 130.5 φ55×21.4 φ23×21.4
Part
Number
Center Distance Big End Dia.
(mm) x Thickness (Inner Bush Dia.)
Material
SNCM
4340
Screw Size
3/8-24
Neck Length Inner Dia. Bearing Width
40 φ52 16.5
Small End Dia. x Thickness
7