Forged Pistons for Acura/Honda, L15A VTEC (Fit/Jazz/City), 74mm, 9:1 (CP Pistons SC7039)
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|
Make |
Honda |
|
Model |
L15A VTEC (Fit/Jazz/City) |
|
Part Number |
SC7039 |
|
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 |
-18 |
|
Compression Ratio |
9 |
|
Weight (Grams) |
216 |
|
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, 9:1 (CP Pistons SC7039) |
|---|---|
| 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 SC7039 pistons?
For the SC7039 pistons, a typical bore clearance of 0.0015" to 0.0025" is recommended. This clearance ensures proper thermal expansion and minimises the risk of piston seizure. Always verify with your specific engine build requirements.
What compression ratio can I expect with the SC7039 pistons in my L15A VTEC engine?
The SC7039 pistons provide a compression ratio of 9:1 when used in the L15A VTEC engine. However, actual compression may vary based on head gasket thickness and combustion chamber volume, so it's essential to measure and calculate accurately for your specific setup.
Are the SC7039 pistons compatible with high lift camshafts?
Yes, the SC7039 pistons feature deep valve reliefs that accommodate high lift camshafts and oversized valves. This design allows for increased airflow and performance, making them suitable for modified engines.
What type of wrist pins are included with the SC7039 pistons?
The SC7039 pistons come with standard wrist pins (part number 708-2250-15CP1C) included at no additional cost. If you require an upgraded pin, you can opt for the 708-2250-18CP3C.
Do I need to perform any special machining for the SC7039 pistons?
While the SC7039 pistons are CNC machined for precision, you may need to check and adjust the bore size and ring gaps to ensure proper fitment in your engine. It's crucial to follow the specific machining requirements based on your engine's condition and performance goals.
