{"product_id":"forged-piston-kit-cp-9-0-1-compression-ratio-4age-4agze-16v","title":"Forged Piston Kit - CP 9.0:1 Compression Ratio - 4AGE \u0026 4AGZE 16V","description":"\u003cp\u003eForged Piston kit - 81.5mm or 82mm Bore Size 9.0:1 Compression Ratio for 4AGE \u0026amp; 4AGZE 16V\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e294 grams with a 20mm wrist pin.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCP Pistons is one of the most trusted names in the industry, and for good reason. 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. Their standard offering already includes Dual Pin Oilers - providing double the amount of oil to the wrist pin, radiused valve reliefs and the pin fitting final hone on the wrist pin bore. They even include an Accumulator Groove as a standard option. 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. - make more power.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan\u003eAll pistons come balanced within one gram, include pin lock grooves and wrist pins at no additional charge.  These pistons come with rings.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eCP Standard Shelf Pistons \u003cbr\u003e\u003cem\u003eFeatures\u003c\/em\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"iteminfo-box\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eDedicated forgings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBalanced to + or 1 gram\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWrist pins provided at no cost\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePin fitting provided at no cost\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAccumulator Grooves\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDual forced pin oilers\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePick lock grooves\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFully CNC machined\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUSA Made\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cem\u003ePistons come with wrist pins, pin fitted, and locks.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cstrong\u003eCAM AND BARREL\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eThe 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:\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e1. Tighter clearances\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e2. Less noise\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e3. Better ring seal\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e4. More power\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e5. Increased durability\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eANTI DETONATION GROOVES (CONTACT REDUCTION GROOVES) \u003cbr\u003e\u003c\/strong\u003eAlso 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.\u003cstrong\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cstrong\u003eACCUMULATOR GROOVE\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eV-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.\u003c\/span\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cbr\u003eDOUBLE PIN OILERS \u003cbr\u003e\u003c\/strong\u003eDouble 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.\u003cstrong\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cstrong\u003eBROACHES\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eBroaches 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.\u003c\/span\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cbr\u003ePIN FITTING\u003cbr\u003e\u003c\/strong\u003eThe 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.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"CP Pistons","offers":[{"title":"81.50mm(0.5 over standard)","offer_id":31408295575665,"sku":"SC7650","price":770.52,"currency_code":"GBP","in_stock":true},{"title":"82.00mm(1.0 over standard)","offer_id":31408295608433,"sku":"SC7651","price":770.52,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0054\/9099\/9409\/products\/CP-Pistons-universal-image.jpg?v=1583238137","url":"https:\/\/www.fensport.co.uk\/products\/forged-piston-kit-cp-9-0-1-compression-ratio-4age-4agze-16v","provider":"Fensport Performance","version":"1.0","type":"link"}