Forged Pistons for Acura/Honda, L15A VTEC (Fit/Jazz/City), 74mm, 11.5:1 (CP Pistons SC7139)
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|
Make |
Honda |
|
Model |
L15A VTEC (Fit/Jazz/City) |
|
Part Number |
SC7139 |
|
Cylinders |
4 |
|
Bore (in) |
2.913 |
|
Bore (mm) |
74 |
|
Size |
+1.0mm |
|
Stroke |
89.4 |
|
Conrod |
149 |
|
Comp Height (in) |
1.03 |
|
Comp Height (mm) |
26.2 |
|
Dom/Dish CC |
-6.5 |
|
Compression Ratio |
11.5 |
|
Weight (Grams) |
209 |
|
Pin (mm) |
18 |
|
Rings |
XC-2913 |
|
Ring Thickness |
1.0 x 1.2 x 2.8mm |
|
Pin included (Standard) |
708-2250-15CP1C |
|
Upgraded Pin |
708-2250-18CP3C |
|
Ultra Duty Pin |
NA |
|
Locks |
708x050 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, L15A VTEC (Fit/Jazz/City), 74mm, 11.5:1 (CP Pistons SC7139) |
|---|---|
| Brands | CP Carrillo |
| Engine | L15A VTEC |
| 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 SC7139 pistons?
For the SC7139 pistons, a typical bore clearance of 0.0015" to 0.0025" is recommended. However, this can vary based on the specific application and the engine builder's preferences. Always consult your engine builder for the best fitment.
What compression ratio do the SC7139 pistons achieve?
The SC7139 pistons achieve a compression ratio of 11.5:1 when used in the L15A VTEC engine. This ratio is suitable for performance applications but requires proper tuning and fuel quality to ensure reliability.
What type of rings are included with the SC7139 pistons?
The SC7139 pistons come with high-performance XC-2913 rings, which feature a thickness of 1.0 mm for the top ring, 1.2 mm for the second ring, and 2.8 mm for the oil ring. These rings are designed to provide optimal sealing and performance.
Can the SC7139 pistons accommodate high lift camshafts?
Yes, the SC7139 pistons are designed with deep valve reliefs to accommodate high lift camshafts and oversized valves. This feature allows for greater airflow and performance in modified engines.
What is the weight of the SC7139 pistons, and how does it affect performance?
Each SC7139 piston weighs 209 grams. The lightweight design helps reduce reciprocating mass, which can improve engine response and overall performance, especially at higher RPMs.
