
| ENGINE BEARINGS | ||
![]() |
CON ROD BEARING SET |
|
| Part# | ||
| 4B8296H |
4B8296HX |
|
| Sizes | STD, .025, .25, .50 | STD |
| Oil Clearance | Standard | + 0.001" Extra |
| Half Type | Identical Halves | |
| Material |
Tri-metal Hardened steel backs |
|
| Min Std Shaft Size |
2.0466in / 51.984mm |
|
| Max Std Shaft Size |
2.0472in / 51.000mm |
|
| Min Std Tunnel Size |
2.1654in / 55.000mm |
|
| Max Std Tunnel Size |
2.1661in / 55.020mm |
|
| Max Wall at Crown |
0.0591in / 1.500mm |
0.0585in / 1.487mm |
| Max Overall Length |
0.6496in / 16.50mm |
|
| Notes | Suits 52mm journal only | |
|
Diagram |
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|

| ENGINE BEARINGS | ||
![]() |
MAIN BEARING SET |
|
| Part# | ||
| 5M8309H |
5M8309HX |
|
| Sizes | STD, .025, .25, 0.5 | STD |
| Oil Clearance | Standard | + 0.001" Extra |
| Half Type | Identical Halves | |
| Material | Tri-Metal | |
| Min Std Shaft Size |
2.3616in / 59.984mm |
|
| Max Std Shaft Size |
2.3622in / 60mm |
|
| Min Std Tunnel Size |
2.5197in / 64mm |
|
| Max Std Tunnel Size |
2.5205in / 64.02mm |
|
| Max Wall at Crown |
0.0789in / 2.005mm |
0.0784in / 1.992mm |
| Max Overall Length |
0.748in / 19mm (8297H/HX) 0.5953in / 15.12mm (8298H/HX) 0.9035in / 22.95mm (8309H/HX - Flange) |
|
| Notes | Thrust in #5 pos. | |
|
Diagram |
|
|

| ENGINE BEARINGS | ||
![]() |
MAIN BEARING SET |
|
| Part# | ||
| 5M8309H |
5M8309HX |
|
| Sizes | STD, .025, .25, 0.5 | STD |
| Oil Clearance | Standard | + 0.001" Extra |
| Half Type | Identical Halves | |
| Material | Tri-Metal | |
| Min Std Shaft Size |
2.3616in / 59.984mm |
|
| Max Std Shaft Size |
2.3622in / 60mm |
|
| Min Std Tunnel Size |
2.5197in / 64mm |
|
| Max Std Tunnel Size |
2.5205in / 64.02mm |
|
| Max Wall at Crown |
0.0789in / 2.005mm |
0.0784in / 1.992mm |
| Max Overall Length |
0.748in / 19mm (8297H/HX) 0.5953in / 15.12mm (8298H/HX) 0.9035in / 22.95mm (8309H/HX - Flange) |
|
| Notes | Thrust in #5 pos. | |
|
Diagram |
|
|

|
|||||||
| Quantity | 4 | ||||||
| Crankshaft | 51.999 / 51.984 | ||||||
| Housing | 55.001 / 55.019 | ||||||
| Max Wall | 1.501 | ||||||
| Max Length | 16.500 |

|
Product detailed specification |
|
|
Bore size |
93.00mm |
|
Stroke |
75.00mm |
|
JE Pistons compression ratio (CR) |
8.5:1 |
|
OEM compression ratio (CR) |
8.0:1 |
|
Dome volume (CC) |
-12.4cm3 |
|
Compression height (CH) |
32.70mm |
|
Pin diameter |
23mm |
|
Features |
Accepts Turbo and Nitrous; FSR series Skirt |
|
Fits for |
Subaru Imreza WRX STI - 2.0 16V (EJ20, EJ205, EJ207) |

|
Product detailed specification |
|
|
Bore size |
93.00mm |
|
Stroke |
75.00mm |
|
Wiseco compression ratio (CR) |
8.35:1 |
|
OEM compression ratio (CR) |
8.0:1 |
|
Dome volume (CC) |
-9cm3 |
|
Compression height (CH) |
32.66mm |
|
Pin diameter |
23mm |
|
Features |
Accepts Turbo and Nitrous; Full Round Skirt |
|
Fits for |
Subaru Impreza WRX STI - 2.0 16V (EJ20, EJ205, EJ207) |

|
Product detailed specification |
|
|
Bore size |
93.00mm |
|
Stroke |
79.00mm |
|
JE Pistons compression ratio (CR) |
8.5:1 |
|
OEM compression ratio (CR) |
8.0:1 |
|
Dome volume (CC) |
-16cc3 |
|
Compression height (CH) |
30.70mm |
|
Pin diameter |
23mm |
|
Features |
Accepts Turbo and Nitrous; FSR series Skirt |
|
Fits for |
Subaru Impreza WRX STI - 2.0 16V (EJ20, EJ205, EJ207) |

|
Product detailed specification |
|
|
Bore size |
92.50mm |
|
Stroke |
75.00mm |
|
Wiseco compression ratio (CR) |
8.35:1 |
|
OEM compression ratio (CR) |
8.0:1 |
|
Dome volume (CC) |
-9cm3 |
|
Compression height (CH) |
32.66mm |
|
Pin diameter |
23mm |
|
Features |
Accepts Turbo and Nitrous; Full Round Skirt |
|
Fits for |
Subaru Impreza WRX STI - 2.0 16V (EJ20, EJ205, EJ207) |
Armor Plated wiseco pistons have almost a bronze colored tint to the top of the piston and the wrist pin bore. Wiseco's Armor Plating is an abrasion resistant plating that raises the hardness of the aluminum, increases the durability of the ring grooves, prevents micro-welding of the piston rings, reduces carbon buildup and combats corrosion caused by detonation. Wiseco's most popular pistons now include Armor Plating.

Springs data:
Seat pressure - 82lbs @ 34.25mm
Open (lift) pressure - 220lbs @ 11.5mm
Spring coil bind - 20.70mm
Rate - 12.10lbs/mm
Max lift - 13.50mm
Outer spring outer diameter: 27.50mm
Outer spring inner diameter: 20.00mm
Inner spring outer diameter: 20.00mm
Inner spring inner diameter: 15.20mm
Set includes:
Dual springs: 16 pcs. SPR-TS1015/SU4
Titanium retainers: 16 pcs. RET-TS60/WRX1
Seats: 16 pcs. SEAT-TS/SUB4

Athena Racing 338-serijos daugiasluoksnio plieno cilindrų galvos tarpinių komplektas.
Athena MLS tarpinės pagamintos pagal šiandieninių sportinių automobilių variklių reikalavimus ir suteikia geresnį sandarinimą lyginant su standartinėmis (OEM) tarpinėmis.
Prekės kodas: 338002R (2 vnt.)
Tarpinės storis: 1.00mm
Cilindro diametras: 94.00mm
|
Tarpinės kodo pradžia 338 |
|
|
Athena privalumai |
|
| Optimizuota reljefinė forma |
Apvali įspaudo forma padidina cilindrų, tepimo |
| Pažangi "stopper" technologija |
Ši technologija pagerina slėgio sandarinimą aplink cilindrą. Aukščiausios sandarinimo savybės didelės galios varikliams |
|
Padengimo technologija |
Athena sukurta speciali plieninių paviršių danga pagerina tarpinės patikimumą ir atsparumą temperatūrai |

|
Product detailed specification |
|
|
Bore size |
92.50mm |
|
Stroke |
79.00mm |
|
JE Pistons compression ratio (CR) |
8.5:1 |
|
OEM compression ratio (CR) |
8.0:1 |
|
Dome volume (CC) |
-15.3cc3 |
|
Compression height (CH) |
30.70mm |
|
Pin diameter |
23mm |
|
Features |
Accepts Turbo and Nitrous; FSR series Skirt |
|
Fits for |
Subaru Impreza WRX STI - 2.0 16V (EJ20, EJ205, EJ207) |

|
Product detailed specification |
|
|
Bore size |
92.00mm |
|
Stroke |
75.00mm |
|
Wiseco compression ratio (CR) |
8.35:1 |
|
OEM compression ratio (CR) |
8.0:1 |
|
Dome volume (CC) |
-9cm3 |
|
Compression height (CH) |
32.66mm |
|
Pin diameter |
23mm |
|
Features |
Accepts Turbo and Nitrous; Full Round Skirt |
|
Fits for |
Subaru Impreza WRX STI - 2.0 16V (EJ20, EJ205, EJ207) |