{"product_id":"cp-forged-pistons-set-toyota-supra-mk5-a90-b58-82mm-std-8-04-cc-11-0-1","title":"CP Forged Pistons Set Toyota Supra MK5 A90 B58 82mm STD","description":"\u003cspan data-mce-fragment=\"1\"\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. All pistons come balanced within one gram, include pin lock grooves and wrist pins at no additional charge.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eCP Standard Shelf Pistons\u003cbr data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eFeatures\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eDedicated forgings\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eBalanced to + or 1 gram\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eWrist pins provided at no cost\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePin fitting provided at no cost\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAccumulator Grooves\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eDual forced pin oilers\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePick lock grooves\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eFully CNC machined\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eUSA Made\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003ePistons come with wrist pins, pin fitted, and locks (except for Subaru).\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eCAM AND BARREL\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\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 correct cam and barrel on a part promotes the following:\u003cbr data-mce-fragment=\"1\"\u003e1. Tighter clearances\u003cbr data-mce-fragment=\"1\"\u003e2. Less noise\u003cbr data-mce-fragment=\"1\"\u003e3. Better ring seal\u003cbr data-mce-fragment=\"1\"\u003e4. More power\u003cbr data-mce-fragment=\"1\"\u003e5. Increased durability\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eANTI DETONATION GROOVES (CONTACT REDUCTION GROOVES)\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eAlso known as contact reduction grooves, which limit the\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/strong\u003episton\/cylinder contact during high temperature and high RPM.\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eThese grooves also protect the top ring by disrupting detonation\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003ewaves.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eACCUMULATOR GROOVE\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\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\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eDOUBLE PIN OILERS\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003eDouble Pin Oilers (opposed to single pin oilers), in conjunction\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003ewith our annular reservoir, can add twice the amount of oil from\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cstrong data-mce-fragment=\"1\"\u003ethe cylinder wall to the wrist pin bore. This is a standard option on\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/strong\u003eany piston that receives forced pin oiling.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eBROACHES\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\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 wrist pin shape under compression, as it can become somewhat oval and needs room in order to alleviate galling.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003ePIN FITTING\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe pin bore is precision honed to attain an exact pin clearance. Depending on\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003ethe application clearances typically range from .0003 to as much as .003\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cstrong data-mce-fragment=\"1\"\u003ebetween the wrist pin and pin bore.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e","brand":"CP Pistons","offers":[{"title":"11:1","offer_id":40418911551591,"sku":"","price":1438.0,"currency_code":"USD","in_stock":true},{"title":"10.25:1","offer_id":40418911584359,"sku":"","price":1438.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0561\/1716\/6183\/files\/381492-1_1000x_686913f3-8ae5-4e94-bbe7-29ffc4720a00.webp?v=1707533505","url":"https:\/\/www.rockfordspeed.com\/products\/cp-forged-pistons-set-toyota-supra-mk5-a90-b58-82mm-std-8-04-cc-11-0-1","provider":"Rockford Speed","version":"1.0","type":"link"}