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Wiseco AP Forged Pistons B17A 81mm STD -2.4 cc 9.2:1 81.4mm Stroke

SKU
K542M81AP
$831.99
Back Ordered

This item is out of stock at the manufacturer level, and experiencing a known global supply delay. Contact us for the latest availability date estimation.

Description

Wiseco pistons go through more finishing processes than any other piston on the market, without driving the cost up. They come with more features standard than any other piston on the market, at a more affordable price than many of the competitors. All of the Wiseco pistons for this application come standard with anti-friction skirt coating which helps minimize scuffing during break-in and lower friction on the cylinder wall. The top face of the piston is textured to improve the combustion characteristics, and all kits come with rings, pins and locks.

This Piston comes with Wiseco's new Armor Plating Coating. Armor Plated wiseco pistons have almost a bronze colored tint to the top of the piston and the wrist pin bore. Wiseco's Armor Plating is an abrasion resistant plating that raises the hardness of the aluminum, increases the durability of the ring grooves, prevents micro-welding of the piston rings, reduces carbon buildup and combats corrosion caused by detonation. Wiseco's most popular pistons now include Armor Plating.


The Multivalve Piston Technology Leader

Wiseco is world renowned for their work building race winning pistons for compact engines featuring small bores, multi-valves, and high RPM applications for many years. Wiseco utilizes experience acquired from a diverse background of the most sophisticated engines in such venues as Formula 1, Indy Racing League (IRL), NHRA Pro Stock Bike, AMA Superbike, and AMA Motocross to design and manufacture the highest technology Sport Compact piston available.


1 Generous Valve Pocket designs that allow maximum flow around valve.
Note: Piston to valve clearance must be checked.

2 Piston Crown shapes designed to promote maximum Intake Charge efficiency thru scavenging mixture "Cross Flow" during intake and exhaust
valve overlap. More fuel and air equals more horsepower!

3 Pistons designed to optimize squish or quench during compression combustion cycle event, resulting in resistance to detonation and pre-ignition.
The end product is longer engine life and increased horsepower potential.

4 Complex Piston skirt profiles that reduce power robbing friction, yet promote stability in bore for optimum ring seal. Wiseco has added skirt coatings to
the long list of standard features on our stocked Sport Compact pistons!

5 Precision machined ring grooves with proper orifice/accumulator volume using calculated groove root diameters and axial widths, featuring excellent
surface finish and flatness providing maximum ring seal and minimizes blow-by and oil consumption.

6 World class forging facility that utilizes the latest technologies featuring complex forged shapes, advanced materials, and featured-aligned grain flow technology

1) Aerospace grade materials, forged for maximum strength.

2) Precision tolerance CNC machining for quality, repeatability and performance.

3) Crown thickness and ring lands designed for power adders like - forced induction (turbos & blowers) and nitrous oxide. Note: High compression pistons are generally designed for naturally aspired application.

4) High Quality Piston Rings featuring positive twist nitride steel top ring, Napier 2nd ring, and nitrided rails on a specially designed expander for the best oil control.

5) Wrist Pins constructed of chrome moly steel material for the ultimate in strength.

6) Honed/Reamed pin bore holes for a precise tolerance fit between wrist pin and piston.

7) Wire Retainer Clip Lock, featuring chrome silicon material for the ultimate yield strength.

8) Piston deburred for performance and reliability.

9) Piston weights listed may vary.

10) All specs based on U.S. engine codes unless noted.

Specifications

More Information
Item Weight 280 g
Shipping Weight (Dimensional) 4.250000
Clearance Sale No
Availability Back Ordered
Part Type Pistons
Make Honda / Acura
Vehicle Model Integra GS-R
Model Integra GSR 92-93 DB2
Engine B17A
Rod Length 5.208" / 132.28mm
Rod Length Oversize Standard Length
Bore Diameter 81mm
Bore Oversize Standard Bore
Stroke 81.4mm (Standard Stroke)
Compression Ratio 9.2:1
Pin Size 0.827" / 21mm
Upgraded Pin (not included) S733
Included Ring Set 8100XX
Included Pin Locks CW21
Included Pin S656
Head cc 42.7 cc
Dome cc -2.4 cc
Compression Height 1.175 / 29.85mm
Piston Coating Crown Coating, Skirt Coating
Brand Wiseco
Skirt Type Slipper Skirt
Piston Material 2618
Compression Ratio Gasket Thickness .0040
Carb Legal Unspecified
Wrist Pin Wall Thickness 0.157"
Wrist Pin Dimensions .827" x 2.002" x .157"
Pin Material 5115 Steel
Shipping Label Free Shipping

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