
|
Product detailed specification |
|
|
Bore size |
81.50mm |
|
Stroke |
86.40mm |
|
JE Pistons compression ratio (CR) |
8.5:1 |
|
OEM compression ratio (CR) |
9.3:1 |
|
Dome volume (CC) |
-8cm3 |
|
Compression height (CH) |
30.86mm |
|
Pin diameter |
21mm |
|
Features |
Accepts Turbo and Nitrous; Round skirt |
|
Fits for |
Audi S4, RS4, A6 - 2.7 30V |

The Xtreme Clutch 230mm Race Clutch is available with either ceramic, organic or carbon friction materials, making these kits ideal for high horsepower and motorsport applications where a high heat capacity is required.
The Xtreme 230mm Race Clutch is the ultimate in clutch solutions with a range like no other. The 230mm range boasts a variety of kits to suit most high horsepower applications for street, circuit, drift or race use. The Xtreme 230mm Race Clutch has been designed, allowing for endless options with clutch operation with internal hydraulic options and pull-push conversions a factoring feature in the 230mm range.



| Flat Diaphragm | Rolled Diaphragm | |
| Clamping Force | 1300kg | 1300kg |
| Torque Rating | 1800Nm | 1800Nm |
| Bearing Contact Diameter | 65mm | FLAT BEARING |
| Bearing Load (@ 48mm) | 180kg | 150kg |
| Release Travel Required | 7mm | 7mm |
| Assembly Mass (without flywheel) | 8.30kg | 8.30kg |
| Disc Set Static Mass | 2.25kg | 2.25kg |
| Friction Thickness New | 8mm (0.315") | 8mm (0.315") |
| Friction Thickness Worn | 7.5mm (0.295") | 7.5mm (0.295") |


| ENGINE BEARINGS | ||
![]() |
CON ROD BEARING SET |
|
| Part# | ||
| 4B1236H |
4B1236HX |
|
| Sizes | STD, .025, .25 | STD |
| Oil Clearance | Standard | + 0.001" Extra |
| Half Type | Identical Halves | |
| Material |
Tri-metal Hardened steel backs |
|
| Min Std Shaft Size |
2.0454in / 51.954 mm |
|
| Max Std Shaft Size |
2.0461in / 51.972 mm |
|
| Min Std Tunnel Size |
2.1654 in / 55.000 mm |
|
| Max Std Tunnel Size |
2.1657 in / 55.010 mm |
|
| Max Wall at Crown |
0.0591in / 1.500 mm |
0.0585in / 1.487 mm |
| Max Overall Length |
0.669 in / 17.00 mm |
|
| Notes | - | |
|
Diagram |
![]() |
|

| Min Std Shaft Size |
1.7707in / 44.975mm |
|
| Max Std Shaft Size |
1.7713in / 44.991mm |
|
| Min Std Tunnel Size |
1.8898in / 48.000mm |
|
| Max Std Tunnel Size |
1.8904in / 48.016mm |
|
| Max Wall at Crown |
0.0588in / 1.493mm |
|
| Max Overall Length |
0.709in / 18.00mm |
|

|
Product detailed specification |
|
|
Bore size |
82.00mm |
|
Stroke |
86.40mm |
|
Wiseco compression ratio (CR) |
8.5:1 |
|
OEM compression ratio (CR) |
9.5:1 |
|
Dome volume (CC) |
-7cm3 |
|
Compression height (CH) |
32.71mm |
|
Pin diameter |
20mm |
|
Features |
Accepts Turbo and Nitrous, Round piston skirt |
|
Fits for |
VAG - 1.8T 20V |


Lifter info:
Outer diameter - 34.97mm
Inner diameter - 33.10mm
Outer height - 26.30mm
Stem length - 14.70mm
Stud diameter - 7.00mm
Weight - 50g
8 pcs. FCP Engineering mechanical racing solid lifters.
Forged steel, nitride hardened surface, HRC 50.
Installed follower height to camshaft must be adjusted with lash caps (not included).

|
Bore size |
86.50mm |
|
Stroke |
86.00mm |
|
Mahle compression ratio (CR) |
8.7:1 |
|
OEM compression ratio (CR) |
8.5:1 |
|
Dome volume (CC) |
-14.0cm3 |
|
Compression height (CH) |
34.00mm |
|
Pin diameter |
22mm |
|
Features |
PowerPak Plus 2618 Alloy & Hard Anodized Top Ring Groove For Extreme Duty Applications |
|
Fits for |
Toyota Supra - 3.0 (2JZGTE) |

The 6000 Series Competition Valves are designed to provide excellent reliability in an environment of high spring pressures and roller cams, at a budget price. They have higher fatigue resistance and tensile strengths than our competitor’s best offerings.
To manufacture the valves we use our exclusive two-step slow forging process using EV8 stainless steel on both intake and exhaust valves.We provide a special heat-treatment and stress relieving process, along with hard chrome stems and friction-welded hard tips. We finish with a swirl polished head. The valves feature flow improvements to deliver the power needed for today’s sophisticated racing engines.
