Forged Pistons for Toyota B58 (6 cyl), 82mm, 11:1 (CP Pistons SC7705)
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|
Make |
BMW |
|
Model |
B58/B48 |
|
Part Number |
SC7705 |
|
Cylinders |
6 |
|
Bore (in) |
3.2283 |
|
Bore (mm) |
82 |
|
Size |
STD |
|
Stroke |
94.6 |
|
Conrod |
148 |
|
Comp Height (in) |
1.39 |
|
Comp Height (mm) |
35.3 |
|
Dom/Dish CC |
-8.04 |
|
Compression Ratio |
11 |
|
Weight (Grams) |
321 |
|
Pin (mm) |
22 |
|
Rings |
CPT-3228PVD |
|
Ring Thickness |
1.2 x 1.2 x 2.0mm |
|
Pin included (Standard) |
866-2250-18CP1C |
|
Upgraded Pin |
866-2250-20CP3C |
|
Ultra Duty Pin |
866-2250-25CP3C |
|
Locks |
866x063 SWL |
CP pistons are compatible with oversized valves and high lift camshafts. CP Pistons represent the highest quality and is engineered for maximum power. Standard features include: Deep valve reliefs accommodate high lift camshafts; Larger valve reliefs for +1mm valve sizes; Custom skirt cam and barrel design; Accumulator grooves; High strength aluminum forgings; High performance rings; Fully CNC machined and balanced to +/- 1 gram; Wrist pins included at no additional cost; Double pin oilers force fed from oil ring groove; Pin lock grooves for easy lock removal; Pin fitting included.
| Product Name | Forged Pistons for Toyota B58 (6 cyl), 82mm, 11:1 (CP Pistons SC7705) |
|---|---|
| Brands | CP Carrillo |
| Engine | B58 - S58 |
| Make | BMW |
Delivery & Freight
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What information do I need to match these pistons to my engine?
You need the engine code, bore size, stroke, rod length, pin diameter and target compression ratio. These determine the correct piston compression height and crown design.
How should ring gaps be set for these pistons?
Ring gaps must be set by your engine builder based on fuel type, boost level and the intended rpm range. Forced-induction engines usually require larger gaps.
Are forged pistons suitable for street engines?
Yes. Forged pistons handle detonation and high cylinder pressure better than cast units. Your builder should set the piston-to-bore clearance to suit your application.
What is the recommended bore clearance for the CP Pistons SC7705 in a B58 engine?
For the CP Pistons SC7705, a typical bore clearance of 0.0015" to 0.0020" is recommended. However, it's essential to consult with your engine builder for specific clearance requirements based on your engine's application and operating conditions.
What compression ratio do the SC7705 pistons provide in a B58 engine?
The SC7705 pistons have a compression ratio of 11:1 when used in a B58 engine. This ratio is suitable for performance applications, but ensure that your fuel quality and tuning are appropriate to support this compression level.
Can I use these pistons with oversized valves?
Yes, the CP Pistons SC7705 are designed with deep valve reliefs to accommodate oversized valves and high lift camshafts, making them suitable for high-performance builds.
What is the weight of the SC7705 pistons, and how does it affect performance?
Each SC7705 piston weighs 321 grams. The lightweight design helps reduce reciprocating mass, which can improve engine response and overall performance, particularly at higher RPMs.
Are the wrist pins included with the SC7705 pistons, and what are the options for upgrades?
Yes, the SC7705 pistons come with standard wrist pins included at no additional cost. Upgraded options are available, such as the 866-2250-20CP3C and the ultra-duty 866-2250-25CP3C pins for enhanced strength and performance.
