Brand
Tomei
Compatibility
EVO 1 – 9
Part Number
250017
SPEC
PISTON
| Bore (Φ) |
Pin Dia (Φ) |
Length (mm) |
Recess | Comp.Height (mm) |
PistonCrownVolume (cc) |
Weight (g) |
Pin weight (g) |
Total weight (g) |
|---|---|---|---|---|---|---|---|---|
| 85.5 | 22.0 | 60 | ○ | 31.65 | 20.5 | 327 | 113 | 440 |
| 86.0 | ○ | 20.5 | 335 | 448 |
| Top ring B×T(mm) | Second ring B×T(mm) | Oil ring B×T(mm) |
|---|---|---|
| 1.2×3.05 | 1.2×3.7 | 2.5×2.85 |
CRANKSHAFT
| Stroke (mm) | Weight (kg) | STD Stroke (mm) |
|---|---|---|
| 100.0 | 18.5 | 88.0 |
CONNECTING ROD
| Conrod | Conrod Bolt | Conrod Bearing | Material | ||||
|---|---|---|---|---|---|---|---|
| Length (mm) |
L.Diam×Length (mm) |
S.Diam×Length (mm) |
Bolt Size | Height Under Neck (mm) |
Inner Circum (mm) |
Bearing Width (mm) |
|
| 147.0 | φ48×26.4 | φ22×23 | 3/8-24 | 40 | 45 | 21.0 | SNCM439 |
Compression Ration Specs
| Bore | φ85.5 | φ86.0 | |
|---|---|---|---|
| Gasket Thickness (mm) |
1.0 | 9.2 | 9.3 |
| 1.2 | 9.1 | 9.2 | |
| 1.5 | 8.9 | 9.0 | |
| 1.8 | 8.7 | 8.8 | |
| Gasket Bore | 86.5 | ||
KIT WITH BEARINGS INCLUDED
Tomei has made an option to include their Competition Bearing Series product with our kits. All the engine internals are brought to static temperature (20 degrees Celcius) and blueprinted with 0.040~0.060mm clearance bearings.
This eliminates the measuring and blueprinting process for the customer, so the kit can be installed with less hassle.
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