CP Forged Pistons Subaru WRX EJ255 75mm De-Stroke Long Rod 100.5mm +1.0mm -21 cc 8.3:1

Name: CP Forged Pistons Subaru WRX EJ255 75mm De-Stroke Long Rod 100.5mm +1.0mm -21 cc 8.3:1
Brand: CP Pistons
SKU: SC7423 FITMENT3
Price: 796.64 USD
Availability: InStock

SKU

SC7423

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Price : Regular Price $885.15 Special Price $796.64

2 In Stock

2 of these are currently available in stock at our Sanford, FL location.

CP Pistons

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Description

CP Standard Shelf Pistons
Features

Dedicated forgings
Balanced to + or 1 gram
Wrist pins provided at no cost
Pin fitting provided at no cost
Accumulator Grooves
Dual forced pin oilers
Pick lock grooves
Fully CNC machined
USA Made

Pistons come with wrist pins, pin fitted, and locks.

CAM AND BARREL

The Cam is the shape around the skirt of the piston and the barrel is the shape from under the oil ring to the bottom of the skirt. Extensive research and development has been done to find the optimum skirt shape for each piston. These shapes have been found to seal up cylinders and reduce harmonics in the bore better than ever before. Depending on the forging and application, different cam and barrel profiles are utilized for maximum performance. Having the correect cam and barrel on a part promotes the following:

1. Tighter clearances

2. Less noise

3. Better ring seal

4. More power

5. Increased durability

ANTI DETONATION GROOVES (CONTACT REDUCTION GROOVES)
Also know as contact reduction grooves, which limit the piston/cylinder contact during high temperature and high RPM. These grooves also protect the top ring by disrupting detonation waves.

ACCUMULATOR GROOVE

V-shaped groove machined in the 2nd ring land that adds to the volume between the top and second ring. This groove accumulates residual gasses from combustion which alleviates top ring flutter and premature second ring wear, improving ring seal.

DOUBLE PIN OILERS
Double Pin Oilers (opposed to single pin oilers), in conjunction with our annular reservoir, can add twice the amount of oil from the cylinder wall to the wristpin bore. This is a standard option on any piston that receives forced pin oiling.

BROACHES

Broaches are horizontal slots in the pinbore designed to allow oil to enter between the wristpin and pinbore. Broaches are also used to accommodate the wristpin shape under compression, as it can become somewhat oval and needs room in order to alleviate galling.

PIN FITTING
The pin bore is precision honed to attain an exact pin clearance. Depending on the application clearances typically range from .0003 to as much as .003 between the wristpin and pin bore.

Specifications

More Information
Availability New	In Stock / Available
Note	This is a full set of Pistons, Rings, Pins, and Locks. For 75mm De-Stroke and 132.5mm Long Rod
Item Weight	384 g
Shipping Weight (Dimensional)	6.000000
Clearance Sale	Yes
On Sale	On Sale
Availability	In Stock
Part Type	Pistons
Make	Subaru
Vehicle Model	Impreza WRX
Model	WRX 06-07 GD, WRX 06-07 GG, WRX 08-14 GR
Engine	EJ255
Rod Length	5.216" / 132.5mm
Rod Length Oversize	0.079" / 2.0mm
Bore Diameter	100.5mm
Bore Oversize	0.040" / 1.0mm
Stroke	75mm (2.3L De-Stroker)
Compatible with Stock Sleeves	Yes
Requires Aftermarket Sleeves	No
Compression Ratio	8.3:1
Pin Size	0.905" / 23mm
Included Ring Set	RS1658-3957-0
Included Pin	905-2500-18CP1S
Head cc	52 cc
Dome cc	-21 cc
Compression Height	1.208" / 30.7mm
Brand	CP Pistons
Skirt Type	Full Round
Piston Material	2618
Desired Displacement	2.4L
Carb Legal	Unspecified
Wrist Pin Wall Thickness	0.180"
Wrist Pin Dimensions	.905" x 2.500" x .180"
Pin Material	5100 Chrome Moly Steel
Shipping Label	Free Shipping