JE Forged Piston Sets | Fits VW/Audi 1.8T 20V Engines
JE Forged Piston Sets | Fits VW/Audi 1.8T 20V Engines
JE Forged Piston Sets | Fits VW/Audi 1.8T 20V Engines
JE Forged Piston Sets | Fits VW/Audi 1.8T 20V Engines
JE Forged Piston Sets | Fits VW/Audi 1.8T 20V Engines
JE Forged Piston Sets | Fits VW/Audi 1.8T 20V Engines
JE Forged Piston Sets | Fits VW/Audi 1.8T 20V Engines

JE Forged Piston Sets | Fits VW/Audi 1.8T 20V Engines

JE-18T-242880

Regular price $599.99 Save $-599.99
1 in stock

THE ULTIMATE 1.8T 20V RACE PISTON

Building a high powered engine for road race, drag race, or full out competition racing? JE Pistons for your 1.8T 20V engine offer the ultimate in strength and reliability in a forged piston for your VW/Audi race engine.

INCLUDED IN PISTON SET

  • 4X JE forged pistons
  • 4X JE Pro Seal piston rings sets
  • 4X JE straight wall carbon steel wrist pins
  • 8X JE wrist pin wire locks

CHOOSE YOUR COMPRESSION RATIO

JE piston sets for the VW/Audi 1.8T 20V engine are offered in 8.5:1 or 9.25:1 compression ratios. Lower compression pistons (8.5:1) will allow higher boost levels on lower octane ratings with less chance of knock and cylinder detonation than higher compression ratio pistons. Lower compression will sacrifice out of boost power, spool time, and power/torque per pound of boost. Choose your compression ratio accordingly. For most engine builds we recommend using a higher compression ratio piston (9.25:1). Speak with your engine tuner about the fuel and boost pressures you will be using to determine the best compression for your engine.

CHOOSE YOUR BORE SIZE

JE offers your choice of bore size to suit your build. You have the option of stock bore sizing (81mm) or +.5m to +2mm oversized bores. Overbore pistons require additional machine work including a cylinder bore and hone. This work must be performed by a machine shop. For most performance engine builds, we recommend overboring the engine block when installing aftermarket pistons. This additional work ensures a proper piston to wall clearance and in most cases results in stronger compression, longer piston life, increased ring life, and quieter piston operation.

MEASUREMENTS & SPECIFICATIONS

Stock bore size:
Bore: 81mm
Stroke: 86.4mm
Rod size: 144X20
Dome CC (8.5:1): -8.1
Dome CC (9.25:1): -2.7
Weight (8.5:1): 296 grams
Weight (9.25:1): 299 grams

+.5mm bore size:
Bore: 81.5mm
Stroke: 86.4mm
Rod size: 144X20
Dome CC (8.5:1): -9.3
Dome CC (9.25:1): -3.6
Weight (8.5:1): 310 grams
Weight (9.25:1): 303 grams

+1mm bore size:
Bore: 82mm
Stroke: 86.4mm
Rod size: 144X20
Dome CC (8.5:1): -9.3
Dome CC (9.25:1): -3.6
Weight (8.5:1): 310 grams
Weight (9.25:1): 308 grams

+1.5mm bore size:
Bore: 82.5mm
Stroke: 86.4mm
Rod size: 144X20
Dome CC (8.5:1): -12.2
Dome CC (9.25:1): -6.0
Weight (8.5:1): 307 grams
Weight (9.25:1): 310 grams

+2mm bore size:
Bore: 83mm
Stroke: 86.4mm
Rod size: 144X20
Dome CC (8.5:1): -12.9
Dome CC (9.25:1): -6.5
Weight (8.5:1): 310 grams
Weight (9.25:1): 312 grams

MANUFACTURING DETAILS

Forged from 2618 T6 aluminum
Engineered for extreme operating environments found in professional motorsport competition, JE manufactures this light yet strong piston from high tensile strength 2618 T6 aluminum. This high-performance alloy is suited for use with high compression ratios, high boost levels, and high octane usage tolerating acceleration forces of more than 8000 G's and directional changes exceeding 200 times a second while minimizing weight. This reliable forging is the ultra-high performance choice when building competition or very high powered boosted engine exceeding street power levels.

Optimized dish & dome design
The piston dish and dome have been individually designed to the combustion chamber of each individual application. Special care has been taken to provide properly placed valve reliefs as needed and feature smooth flowing radii across the surface for excellent flame travel. Designed and verified in JE's dedicated Critical Manufacturing Cell, providing reliable compression ratios and combustion characteristics.

JE Pro Seal piston rings
Every JE piston set includes a complete set of performance matching JE Pro Seal Piston Rings. JE Pro Seal rings are the result of over 60 years of experience in manufacturing racing piston technology such as NASCAR, ALMS, NHRA, and AMA. Pro Seal Ring features barrel-faced top rings made with premium ductile iron, plasma-moly inlays on the ring face combining nickel, chrome, and other trace elements. The second ring sets are taper-faced with a reverse torsional design and finished with a phosphate coating. These high-technology designs reduce friction, lower wear, improve ring seal, and extending ring life.

World class manufacturing and quality control
Meeting the extreme demands of today's ultra-performing race teams, JE Pistons are engineered, manufactured, and verified using during a Critical Process Program unique to JE. All critical surfaces are machined in a dedicated manufacturing cell resulting in tighter tolerances on 14 critical areas. 23-point quality inspection in an environmentally controlled lab maintained at a constant 68 degrees with 40% relative humidity. This ensures consistent and exact measurements and guarantees dimensional conformity. Each piston is serialized and tracked, you can rest assured your piston set is ready to use right out of the box!

JE wrist pins
All JE piston sets offered by IE include the wire locks and ship standard with straight wall carbon steel wrist pins. The included wrist pin is recommended for performance engines not exceeding 125HP per cylinder.

OPTIONAL PISTON UPGRADES

JE Tuff Skirt coating upgrade 
JE's race-bred Tuff Skirt coating is self-lubricating and provides improved anti-friction and reduced wear. This coating is applied to the piston skirt designed to increase piston life and withstand many different types of endurance racing. Coating upgrades are non-stock and manufactured by order, all coatings have a 4-6 week lead time. 
Contact sales@performancebyie.com to order

JE thermal barrier crown coating upgrade
The thermal barrier crown coating is applied to the piston dome, designed to reflect heat into the combustion chamber. This increases exhaust gas velocity, greatly improves scavenging potential, and extends piston life by decreasing the rate of thermal transfer. Coating upgrades are non-stock and manufactured by order, all coatings have a 4-6 week lead time. 
Contact sales@performancebyie.com to order

JE 180 "Tool Steel" wrist pin upgrade
JE 180 Tool Steel wrist pins are through-hardened 52100 high-carbon bearing steel for extreme forced induction or nitrous-fed racing applications and offer high-strength with low ductility. Employing the latest in technology, each pin is checked to ensure dimensional measurements and roundness. Recommended upgrade for all engines exceeding 125HP per cylinder. 
Contact sales@performancebyie.com to order

JE 210 "Drag Race" wrist pin upgrade
For drag race use only! Manufactured from the same through-hardened 52100 high-carbon bearing steel as the optional 180 tool steel wrist pins, the 210 Tool Steel pin offers the ultimate in JE wrist pin strength for the most extreme boosted, nitrous, and high torque applications. With strength comes weight, due to the increased wall thickness on JE 210 drag race wrist pins we only recommend this upgrade on non-street drag race only applications. Running this pin option on street driven vehicles will likely result in decreased engine life. When selecting your wrist pin wall thickness, keep projected cylinder pressure, endurance, boost levels, torque onset, and weight requirements in mind. 
Contact sales@performancebyie.com to order

CUSTOM PISTONS

Don't see what you're looking for? If the options for compression ratio or bore sizing does not meet your build requirements, an IE customer service associate can help you custom order a JE piston to your specs. Contact sales@performancebyie.com to get started!

Custom pistons include a price surcharge and are made to order, expect a 4-8 week lead time.

VEHICLE FITMENT

  • Audi - A4 1996-2001 (B5 - B5.5) 1.8T 20V engines
  • Audi - A4 2002-2005 (B6) 1.8T 20V engines
  • Audi - A6 1998-2004 (C5) 1.8T 20V engines
  • Audi - A6 Allroad 1998-2004 (C5) 1.8T 20V engines
  • Audi - TT 2000-2006 (MK1 - 8N) 1.8T 20V engines
  • Audi - A3 1996-2003 (MK1 - 8L) 1.8T 20V engines
  • Audi - S3 1996-2003 (MK1 - 8L) 1.8T 20V engines
  • VW - Golf 1999-2005 (MK4) 1.8T 20V engines
  • VW - GTI 1999-2005 (MK4) 1.8T 20V engines
  • VW - Jetta & Jetta GLI 1999-2005 (MK4) 1.8T 20V engines
  • VW - Passat 1998-2005 (B5 - B5.5) 1.8T 20V engines
  • VW - Beetle 1998-2011 (1C - 9C - 1Y) 1.8T 20V engines

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