
| ENGINE BEARINGS | ||
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MAIN BEARING SET |
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| 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 |
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|


Ilgis: 1784mm
Plotis: 27mm
Dantų skaičius: 223

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|||||||
| 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 |
99.75mm |
|
Stroke |
79.00mm |
|
Wiseco compression ratio (CR) |
9.0:1 |
|
OEM compression ratio (CR) |
8.0:1 |
|
Dome volume (CC) |
-19cm3 |
|
Compression height (CH) |
30.70mm |
|
Pin diameter |
23mm |
|
Fits for |
Subaru WRX STI 2.5 (EJ257) |
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.

|
Product detailed specification |
|
|
Bore size |
99.50mm |
|
Stroke |
79.00mm |
|
Wiseco compression ratio (CR) |
9.0:1 |
|
OEM compression ratio (CR) |
8.0:1 |
|
Dome volume (CC) |
-19cm3 |
|
Compression height (CH) |
30.70mm |
|
Pin diameter |
23mm |
|
Fits for |
Subaru WRX STI 2.5 (EJ257) |
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.

|
Product detailed specification |
|
|
Bore size |
100mm |
|
Stroke |
79.00mm |
|
Wiseco compression ratio (CR) |
9.0:1 |
|
OEM compression ratio (CR) |
8.0:1 |
|
Dome volume (CC) |
-19cm3 |
|
Compression height (CH) |
30.70mm |
|
Pin diameter |
23mm |
|
Fits for |
Subaru WRX STI 2.5 (EJ257) |
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

|
Product detailed specification |
|
|
Bore size |
99.75mm |
|
Stroke |
79.00mm |
|
JE Pistons compression ratio (CR) |
8.5:1 |
|
OEM compression ratio (CR) |
8.0:1 |
|
Dome volume (CC) |
-16.9cm3 |
|
Compression height (CH) |
30.70mm |
|
Pin diameter |
23mm |
|
Features |
Accepts Turbo and Nitrous; coated FSR series Skirt |
|
Fits for |
Subaru Impreza WRX STI - 2.5 16V (EJ257) |

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|
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|||||||||||||||||||
| Quantity | 1 | 2 | 2 | ||||||||||||||||||
| Crankshaft | 60.000 / 59.985 | 60.000 / 59.985 | 60.000 / 59.985 | ||||||||||||||||||
| Housing | 64.000 / 64.021 | 64.000 / 64.021 | 64.000 / 64.021 | ||||||||||||||||||
| Max Wall | 2.004 | 2.004 | 2.004 | ||||||||||||||||||
| Max Length | 22.962 | 18.999 | 15.113 |

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|
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|||||||||||||||||||
| Quantity | 1 | 2 | 2 | ||||||||||||||||||
| Crankshaft | 60.000 / 59.985 | 60.000 / 59.985 | 60.000 / 59.985 | ||||||||||||||||||
| Housing | 64.000 / 64.021 | 64.000 / 64.021 | 64.000 / 64.021 | ||||||||||||||||||
| Max Wall | 2.004 | 2.004 | 2.004 | ||||||||||||||||||
| Max Length | 22.962 | 18.999 | 15.113 |

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Tarpinės kodo pradžia 330 |
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Athena privalumai |
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Sustiprinta medžiaga |
OE patvirtinta - tarpinėms gaminti nenaudojamas asbestas |
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Nerūdijančio plieno žiedai (AISI304) |
Atskiri nerūdijančio plieno žiedai užtikrina maksimalų sandarumą aplink cilindrų angas varikliams, dirbantiems ekstremaliomis sąlygomis, taip pat turintiems NOS sistemą ir/ar turbokompresorių, kai MLS tarpinė nebepajėgi užsandarinti degimo kameros. Cilindrų galvos ir variklio bloko nereikia specialiai apdirbti. |
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Silikoninis sandarinimas |
Silikoninis sandarinimas yra taikomas svarbiose vietose siekiant pagerinti sandarinimą aplink visas aušinimo ir tepimo angas. |