L15b7 flutter valve8/12/2023 ![]() ![]() Most domestic orders ship within 5 days, please allow up to 7-10 days for international orders to ship. Best Pricing - Fast Shipping - Immediate Response Time - Experienced in International Export - 100% Positive Customer Satisfaction Feedback Rating Shipping Info WE CAN ONLY SHIP TO THE ADDRESS ENTERED DURING CHECKOUT. Our sales center and order fulfillment center operates with state of the art, industry leading software that allows us to get you ALL of the parts you need for your build quickly and correctly the first time without the headaches or excuses. We are a fully functioning wholesale and retail distribution warehouse in addition to a dyno-equipped tuning and engine building facility. AbouT us Real Street Performance is unlike most "Race Shops". Please message us for a Return Authorization Number before sending anything back to avoid processing delays. If the original packaging is missing or damaged, or if it has been longer than 30 days since you purchased the item, there may be restocking fees incurred. Return Policy: We allow returns of unopened product within 30 days of the purchase date for a money-back refund. Payment Almost all of our eBay Listings are "Buy it Now" which means payment is due immediately at the time of purchase. Depending on the application clearances typically range from. PIN FITTINGThe pin bore is precision honed to attain an exact pin clearance. 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. BROACHES Broaches are horizontal slots in the pinbore designed to allow oil to enter between the wristpin and pinbore. This is a standard option on any piston that receives forced pin oiling. 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 groove accumulates residual gasses from combustion which alleviates top ring flutter and premature second ring wear, improving ring seal. ACCUMULATOR GROOVE V-shaped groove machined in the 2nd ring land that adds to the volume between the top and second ring. These grooves also protect the top ring by disrupting detonation waves. 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. ![]() Having the correect cam and barrel on a part promotes the following: 1. Depending on the forging and application, different cam and barrel profiles are utilized for maximum performance. These shapes have been found to seal up cylinders and reduce harmonics in the bore better than ever before. Extensive research and development has been done to find the optimum skirt shape for each piston. 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. Note: This is a full set of Pistons, Rings, Pins, and Locks Car Make: Acura / Honda Car Model: Del Sol / Civic Si Years: 1994-1997 Del Sol, 1990-2000 Civic Si Engine: B16A Included Ring Set: CPN-3189 Compression Ratio: 9.0:1 Dome CC: -2.7 cc Head CC: 42.7 cc Gram Weight: 276 g Pin Size: 21mm Compression Height: 1.181" Rod Length: 134.3mm Stroke: 77.4mm Bore: 81mm Material: 2618 Alloy Bore Size: STD Standard Pin (Included): 827-2250-20CP1C Upgraded Pin (Not Included): 827-2250-25CP3C Pin Locks (Included): 827 063 SWL Ring Part#: CPN 3189 Manufacturer Product Specifications 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 (except for Subaru). All pistons come balanced within one gram, include pin lock grooves and wrist pins at no additional charge. This provides a small pocket for the combustion gasses to collect after the first ring, reducing ring flutter and providing a better seal allowing more downward force on the piston A.K.A. They even include an Accumulator Groove as a standard option. Their standard offering already includes Dual Pin Oilers - providing double the amount of oil to the wrist pin, radiused valve relifs, and the pin fitting final hone on the wrist pin bore. Their extensive shelf catalog provides the user with many of the options that you'd normally be resigned to going to a custom piston for. Add to Favorites Home About Us Feedback New Arrivals Ending Soon Contact Us CP Forged Turbo Pistons Honda Civic Si B16 B16A B16A2 9.0:1 81mm SC7000 Description This is a full set of Pistons, Rings, Pins, and Locks CP Pistons is one of the most trusted names in the industry, and for good reason.
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