Forged Pistons for Mazda, 2.3L DISI MZR, 22mm pin, 88mm, 9.5:1 (CP Pistons SC7539)
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|
Make |
Mazda |
|
Model |
DISI MZR 2.3L |
|
Part Number |
SC7539 |
|
Cylinders |
4 |
|
Bore (in) |
3.465 |
|
Bore (mm) |
88 |
|
Size |
+0.5mm |
|
Stroke |
94 |
|
Conrod |
150.55 |
|
Comp Height (in) |
1.28 |
|
Comp Height (mm) |
32.5 |
|
Dom/Dish CC |
-14.5 |
|
Compression Ratio |
9.5 |
|
Weight (Grams) |
356 |
|
Pin (mm) |
22 |
|
Rings |
CPN-3465 |
|
Ring Thickness |
1.0 x 1.2 x 2.8mm |
|
Pin included (Standard) |
866-2250-20CP1C |
|
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 Mazda, 2.3L DISI MZR, 22mm pin, 88mm, 9.5:1 (CP Pistons SC7539) |
|---|---|
| Brands | CP Carrillo |
| Engine | MZR 2.3L DISI |
| 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 SC7539?
For the CP Pistons SC7539, a typical bore clearance of 0.0020" to 0.0025" is recommended. However, final clearance should be determined by the engine builder based on specific application and tolerances.
What type of ring gaps should I use with the SC7539 pistons?
Ring gaps for the SC7539 should be set according to the intended use of the engine. For a performance application, start with a gap of around 0.0045" to 0.0050" for the top ring and slightly larger for the second ring. Always verify with the specific ring manufacturer's recommendations.
Can I use these pistons with a stock MZR 2.3L DISI setup?
While the SC7539 pistons can be used with a stock MZR 2.3L DISI engine, they are designed for performance applications. Ensure that the engine is properly tuned and that supporting modifications are in place to maximise the benefits of the higher compression ratio.
What is the weight of the SC7539 pistons, and how does it affect engine performance?
The SC7539 pistons weigh 356 grams each. Lighter pistons can improve engine response and reduce inertia, allowing for quicker revs. However, ensure that the entire rotating assembly is balanced to maintain reliability and performance.
What type of wrist pins are included with the SC7539 pistons?
The SC7539 pistons come with standard wrist pins (22mm) included at no additional cost. For higher performance needs, upgraded and ultra-duty pins are available, which can provide increased strength and durability under high-stress conditions.
