Forged Pistons for Hyundai, 2.0L G4KF, 86mm, 9:1 (CP Pistons SC7485)
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|
Make |
Hyundai |
|
Model |
4B11 2.0L |
|
Part Number |
SC7485 |
|
Cylinders |
4 |
|
Bore (in) |
3.386 |
|
Bore (mm) |
86 |
|
Size |
STD |
|
Stroke |
86 |
|
Conrod |
146 |
|
Comp Height (in) |
1.181 |
|
Comp Height (mm) |
30 |
|
Dom/Dish CC |
-5.2 |
|
Compression Ratio |
9 |
|
Weight (Grams) |
315 |
|
Pin (mm) |
22 |
|
Rings |
CPN-3386 |
|
Ring Thickness |
1.0 x 1.2 x 2.8mm |
|
Pin included (Standard) |
866-2250-15CP1C |
|
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 Hyundai, 2.0L G4KF, 86mm, 9:1 (CP Pistons SC7485) |
|---|---|
| Brands | CP Carrillo |
| Engine | G4KF / 4B11T |
| Make | Hyundai |
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 SC7485 pistons?
For the SC7485 pistons, a typical bore clearance of 0.0020" to 0.0025" is recommended. However, this can vary based on the specific application and operating conditions, so always consult with your engine builder for precise specifications.
What type of ring gaps should I use with the SC7485 pistons?
The ring gaps for the SC7485 pistons should be set according to the intended use of the engine. A common starting point is 0.004" per inch of bore for the top ring and slightly larger for the second ring. Adjustments may be necessary based on boost levels and RPM.
Can I use these pistons with upgraded valve sizes?
Yes, the SC7485 pistons are designed with deep valve reliefs to accommodate oversized valves and high lift camshafts. Ensure that the specific valve sizes and camshaft profiles are compatible with your engine setup.
What is the weight of the SC7485 pistons, and how does it affect performance?
The SC7485 pistons weigh 315 grams each. Lighter pistons can improve throttle response and reduce reciprocating mass, which can enhance overall performance. However, ensure that the rest of the rotating assembly is balanced accordingly.
Are the wrist pins included with the SC7485 pistons, and what options are available?
Yes, the SC7485 pistons come with standard wrist pins included at no additional cost. Upgraded and ultra-duty wrist pin options are also available for those seeking additional strength for high-performance applications.
