CP Shelf Pistons w/Pins, Rings and Locks | 1995-1999 Mitsubishi Eclipse GST/GSX, 1995-1998 Eagle Talon TSi, and 2003-2006 Mitsubishi Evo 8/9 (SC7229)

1995-1999 Mitsubishi Eclipse GST/GSX, 1995-1998 Eagle Talon TSi, and 2003-2006 Mitsubishi Evo 8/9 Shelf Pistons w/Pins, Rings and Locks by CP

Anti Detonation Grooves (Contact Reduction Grooves) are grooves that protect the top ring by disrupting detonation waves. Also, known as contact reduction grooves, these grooves limit the piston/cylinder contact during high temperature and RPM.

Accumulator Groove is a V-shaped groove machined in the 2nd ring land to collect excess blow-by between the top and second ring. This groove collects residual gasses during combustion and alleviates top ring flutter while increasing the ring seal.

CP groove stands for Constant Pressure Groove. This groove works as a channel on the lower part of the top land that equalizes pressure to the back of the top ring groove. When used in combination with lateral gas ports, the CP groove helps keep gas ports clear of carbon buildup. In addition, the CP groove prevents the top land from smudging into the top ring if the land rubs the cylinder bore.

Double Pin Oilers in conjunction with our dual fed reservoir add twice the amount of oil from the cylinder wall to the wrist pin.

X-Forgings are designed to minimize friction and reduce weight without compromising strength. With the use of bracing and ribs, the forging is configured by adjusting the weight balance between high and low-stress areas. This design enables the use of a shorter pin for added strength and weight savings.

Radius Domes are used to maximizing quench while eliminating possible hot spots that promote detonation.

Features

• 85.5mm Bore
• 88mm Stroke
• 150mm Road
• 1.370 Compression Height
• +.5cc Dome
• Deep valve relief depth accommodates high lift camshaft
• 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 oil ring
• Picklock grooves for easy lock removal
• Pin fitting included

Applications

• 1995-1999 Mitsubishi Eclipse GST/GSX
• 1995-1998 Eagle Talon TSi
• 2003-2006 Mitsubishi Evo 8/9

What's In The Box?

• 4 - Pistons

Warranty

• CP's Limited Manufacturer's Warranty