Forged Pistons for Audi/ VW, 1.8L 20 Valve, 20mm pin, 81.5mm, 8.5:1 (CP Pistons SC7601)
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|
Make |
Audi/VW |
|
Model |
1.8L 20 Valve |
|
Part Number |
SC7601 |
|
Cylinders |
4 |
|
Bore (in) |
3.209 |
|
Bore (mm) |
81.5 |
|
Size |
+0.5mm |
|
Stroke |
86.4 |
|
Conrod |
144 |
|
Comp Height (in) |
1.287 |
|
Comp Height (mm) |
32.7 |
|
Dom/Dish CC |
-9.5 |
|
Compression Ratio |
8.5 |
|
Weight (Grams) |
298 |
|
Pin (mm) |
20 |
|
Rings |
CPN-3209 |
|
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, 20mm pin, 81.5mm, 8.5:1 (CP Pistons SC7601) |
|---|---|
| Brands | CP Carrillo |
| Engine | 1.8L 20 Valve |
| 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 SC7601 pistons?
For the SC7601 pistons, a typical bore clearance of 0.0015" 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 measurements.
What compression ratio can I expect with the SC7601 pistons?
The SC7601 pistons have a compression ratio of 8.5:1. This is suitable for applications where moderate boost levels are used, but ensure that your engine is tuned properly to maximise performance and reliability.
What type of wrist pin is included with the SC7601 pistons?
The SC7601 pistons come with a standard 20mm wrist pin included at no additional cost. For enhanced performance, you can opt for upgraded or ultra-duty wrist pins available separately.
Do the SC7601 pistons accommodate high lift camshafts?
Yes, the SC7601 pistons feature deep valve reliefs designed to accommodate high lift camshafts, making them suitable for performance builds that require increased airflow.
What is the weight of the SC7601 pistons, and how does it affect performance?
The SC7601 pistons weigh 298 grams each. Lighter pistons can improve engine response and reduce reciprocating mass, but ensure that your engine is balanced properly with the full rotating assembly to maintain reliability.
