Forged Pistons for Acura/Honda 1.5L L15B7, CH 1.125, Stroke 89.5mm, Bore 73mm, 10.5:1 Inverted Dome Head (CP Pistons SC7057)
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|
Make |
Honda |
|
Model |
L15B7/B8 |
|
Part Number |
SC7057 |
|
Cylinders |
4 |
|
Bore (in) |
2.874 |
|
Bore (mm) |
73 |
|
Size |
STD |
|
Stroke |
89.5 |
|
Conrod |
141 |
|
Comp Height (in) |
1.125 |
|
Comp Height (mm) |
28.6 |
|
Dom/Dish CC |
-9 |
|
Compression Ratio |
10.5 |
|
Weight (Grams) |
232 |
|
Pin (mm) |
20 |
|
Rings |
CPN-2874 |
|
Ring Thickness |
1.0 x 1.2 x 2.8mm |
|
Pin included (Standard) |
787-2250-18CP3C |
|
Upgraded Pin |
787-2250-18CP3C |
|
Ultra Duty Pin |
787-2250-24CP3C |
|
Locks |
787X050 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 Acura/Honda 1.5L L15B7, CH 1.125, Stroke 89.5mm, Bore 73mm, 10.5:1 Inverted Dome Head (CP Pistons SC7057) |
|---|---|
| Brands | CP Carrillo |
| Engine | L15B7 / B8 |
| Make | Honda |
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 SC7057 pistons?
For the SC7057 pistons, a typical bore clearance of 0.0015" to 0.0020" is recommended. However, this can vary based on specific engine tolerances and intended use, so always consult with your engine builder for precise measurements.
What compression ratio can I expect with the SC7057 pistons in my L15B7 engine?
The SC7057 pistons provide a compression ratio of 10.5:1 when used in the L15B7 engine. This ratio is suitable for performance applications but may require high-octane fuel to prevent detonation.
Are the SC7057 pistons compatible with aftermarket camshafts?
Yes, the SC7057 pistons feature deep valve reliefs that accommodate high lift camshafts and oversized valves, making them compatible with many aftermarket performance camshafts.
What type of wrist pins are included with the SC7057 pistons?
The SC7057 pistons come with standard wrist pins (part number 787-2250-18CP3C) included at no additional cost. For higher performance needs, an upgraded pin (part number 787-2250-24CP3C) is also available.
Do I need to perform any special machining on the SC7057 pistons?
While the SC7057 pistons are fully CNC machined and balanced, it's essential to check for proper fitment in your engine. Depending on your specific setup, you may need to hone the cylinder bores or adjust ring gaps to ensure optimal performance.
