Forged Pistons for Mazda, 1.8L BP, 84mm, 9:1 (CP Pistons SC7542)
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|
Make |
Mazda |
|
Model |
BP 1.8L |
|
Part Number |
SC7542 |
|
Cylinders |
4 |
|
Bore (in) |
3.307 |
|
Bore (mm) |
84 |
|
Size |
+1.0mm |
|
Stroke |
85 |
|
Conrod |
133 |
|
Comp Height (in) |
1.208 |
|
Comp Height (mm) |
30.7 |
|
Dom/Dish CC |
-0.1 |
|
Compression Ratio |
9 |
|
Weight (Grams) |
316 |
|
Pin (mm) |
20 |
|
Rings |
CPN-3307 |
|
Ring Thickness |
1.0 x 1.2 x 2.8mm |
|
Pin included (Standard) |
787-2250-16CP1C |
|
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 Mazda, 1.8L BP, 84mm, 9:1 (CP Pistons SC7542) |
|---|---|
| Brands | CP Carrillo |
| Engine | BP 1.8L |
| Make | Mazda |
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 SC7542?
For the CP Pistons SC7542 designed for the Mazda 1.8L BP engine, a typical bore clearance of 0.0015" to 0.0020" is recommended. However, final clearance should be determined by the engine builder based on the specific application and operating conditions.
What type of wrist pins are included with the SC7542 pistons?
The SC7542 pistons come with standard wrist pins (part number 787-2250-16CP1C) included at no additional cost. For higher performance applications, upgraded pins (part number 787-2250-18CP3C) and ultra-duty pins (part number 787-2250-24CP3C) are available.
Can the SC7542 pistons accommodate high lift camshafts?
Yes, the CP Pistons SC7542 are designed with deep valve reliefs that can accommodate high lift camshafts and oversized valves, making them suitable for performance applications.
What is the weight of the SC7542 pistons and how does it affect performance?
Each SC7542 piston weighs 316 grams. A lighter piston can improve engine responsiveness and reduce inertia, which is beneficial for high RPM applications. However, ensure that the overall rotating assembly is balanced to maintain engine reliability.
What is the compression ratio of the SC7542 pistons and how does it impact engine performance?
The SC7542 pistons have a compression ratio of 9:1. This ratio is suitable for a balance of performance and reliability, especially when using pump fuel. Higher compression ratios may require careful tuning and fuel quality considerations.
