Forged Pistons for Audi/ VW, 1.8L 20 Valve (Stroker) 20mm pin, 83mm, 8.5:1 (CP Pistons SC7609)
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|
Make |
Audi/VW |
|
Model |
1.8L 20 Valve (Stroker) |
|
Part Number |
SC7609 |
|
Cylinders |
4 |
|
Bore (in) |
3.268 |
|
Bore (mm) |
83 |
|
Size |
+2.0mm |
|
Stroke |
92.8 |
|
Conrod |
144 |
|
Comp Height (in) |
1.16 |
|
Comp Height (mm) |
29.5 |
|
Dom/Dish CC |
-16 |
|
Compression Ratio |
8.5 |
|
Weight (Grams) |
289 |
|
Pin (mm) |
20 |
|
Rings |
CPN-3268 |
|
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 Audi/ VW, 1.8L 20 Valve (Stroker) 20mm pin, 83mm, 8.5:1 (CP Pistons SC7609) |
|---|---|
| Brands | CP Carrillo |
| Engine | 1.8L 20 Valve - stroker |
| Make | Audi |
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 SC7609 pistons?
For the SC7609 pistons, a typical bore clearance of 0.0020" to 0.0025" is recommended. However, final clearance should be determined by the engine builder based on the specific application and tolerances.
What type of rings are compatible with the SC7609 pistons?
The SC7609 pistons use CP rings, specifically the CPN-3268 set. Ensure that the ring gaps are set according to the engine's intended use, as this can affect performance and reliability.
What is the weight of the SC7609 pistons and how does it affect engine performance?
Each SC7609 piston weighs 289 grams. Lighter pistons can improve engine response and reduce rotating mass, but ensure that the overall engine balance is maintained during assembly.
Can the SC7609 pistons handle high boost applications?
Yes, the SC7609 pistons are designed for high-performance applications and can handle increased boost levels. However, reliability will depend on proper tuning, fuel quality, and overall engine assembly.
What is the compression ratio of the SC7609 pistons and how does it affect engine tuning?
The SC7609 pistons have a compression ratio of 8.5:1. This ratio is suitable for applications requiring a balance between power and reliability, particularly in boosted setups. Adjustments to tuning may be necessary based on fuel quality and boost levels.
