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  • Everything You Need to Know About Ring Gap!

    High Performance Racing - .0055in x 4.00in bore = 0.022 inch ring gap Racing with Nitrous/Turbo - 0.006in x 4.00in bore = 0.024 inch ring gap Racing Blower/Supercharger - 0.007 x 4.00in bore = 0.028 inch ring gap

  • High Performance Piston Rings and Cylinder Finishes

    re building a performance engine. But they also require rounder, straighter cylinder boresBut when the piston is shorter, the rings have to move up higher. This means they have to

  • TRX450R Piston CP Pistons TRX450R Big Bore TRX 450 R

    Piston Kit includes: Full Race Piston, Piston Pin, Piston Rings, Pin Lock rings for 1 cylinder; Gasket Kit Includes: Cometic high performance top end gaskets required to replace piston and rod in 1 cylinder . 2006 - 2014 Honda TRX450R Project X Platinum Professional Racing Kit. TRX 450 Stock Bore size is 96mm (3.780") Stock Stroke is 62mm (2

  • High Performance Drum Brake Assembly for Automotive Braking

    A High performance drum brake assembly is developed from the basic hydraulic, leading- cylinder piston and the other end on the strut assembly. This lever touches the piston

  • The Science of Compression Ratios for Performance Engines

    When cylinder head and chamber size are dictated, piston configuration, deck height, and gasket thickness must be juggled to chase the compression ratio requirement. Short tracks frequently enforce a 9:1 rule while NASCAR engines are limited to 12:1.

  • Hydraulic Piston Seals | Piston Seals | American High

    The function of the piston seal is to ensure that pressurized fluid or other media does not by-pass the piston as the system pressure pushes the piston down the cylinder during a pressure cycle.. American High Performance Seals manufactures a comprehensive range of piston seal designs, including lip seals, PTFE cap seals, compact-squeeze type seals and application–specific designed seals

  • Piston

    Piston-To-Wall Clearance: Myths, Mysteries, and Misconceptions Explained. October 27, 2017 / by John Baechtel. Piston-to-wall clearance is a crucial measurement for any engine, and different applications can require wildly different specs. We explain the science of why. Among the shiny objects that emerge from a new box of high-performance

  • Total Seal® Piston Rings | Performance Piston Ring

    Just like your Total Seal® Piston Rings. $ 19.99 USD. Size Select Size Small Medium Large XL 2XL 3XL. Quantity Buy now. This product is out of stock. Product is not available in this quantity. Cross Hatch Angle Tool. Easy way to check your honing crosshatch pattern with our Crosshatch Checking Tool. $ 5.00 USD.

  • JE Pistons Performance Engine Parts Catalog

    largest manufacturer of custom forged racing pistons in the world. Offering the shortest lead times in the industry and a 98% order fill rate, JE is the definitive source for all of your high performance needs. The JE complex encompasses the most modern performance piston manufacturing equipment in the industry.

  • Cylinder Piston Kit| performance Cylinder Piston Kit

    The new standard-size replacement cylinder-piston kit replaces existing cylinder assemblies by simply replacing and cycling again. Maxpeedingrods Provides performance Cylinder Piston Kit Include Cylinder, Piston, Piston Rings, Wristpin, Circlips, compatible for Yamaha, compatible for Honda CT70, compatible for Honda Rancher TRX350 and etc. Get your quality Cylinder Piston Kit replacement parts

  • Performance Packages

    T.C. Stage 3 Performance Package. Designed as an economic option when building a 107, 110, 113, 117, or 120” engine. Unlike the Stage IV welded and CNC-ported heads, these CNC-ported heads have a larger 1.94” intake valve instead of the 1.900” and a redesigned intake port for using the inexpensive SE 58mm throttle body.

  • VW Performance Engine Building: Considerations

    A pistons are used on up to 76mm stroke engines and B are used on 78 and longer stroke engines. The difference between the two versions is the location of the wrist pin hole in the piston. Be sure to get the matching set for your crank and rod combo. 77mm, 83mm, 85.5 mm: Stock VW engines (aircooled type 1 1300/1500/1600 cc) came stock with these piston sizes, respectively. Slip in piston and cylinder sets are available in 'size upgrade' of 87mm and 88mm, but we do NOT recommend them EVER

  • Part 2: Power

    Due to this, the width of the second land area is typically between 0.150 to 0.180 inch in a high-performance piston and greater in a stock application. When you consider the land area between the second and third ring, many high performance and race pistons maintain a width of between 0.070 to 0.125-inch.

  • Piston and Piston Rings

    Piston ring size and configuration vary depending on engine design and cylinder material. Piston rings commonly used on small engines include the compression ring, wiper ring, and oil ring. A compression ring is the piston ring located in the ring groove closest to the piston head.

  • Powerbore Cylinder Sleeves | Engine Sleeve & Liner

    Ductile iron is the preferred material for high-performance engine sleeve applications due to its improved tensile strength, yield strength, and elongation. We here at PowerBore produce high-performance cylinder sleeves to the 100-70-03 ductile iron specifications (ASTM A536).

  • Everything You Need to Know About Ring Gap!

    For a street engine, multiplying your bore size by 0.004in will give you the top ring gap you are looking for. 004 x 4.00in bore = 0.016 inch ring gap; For high performance engines, the multiplier changes to add more clearance, but the math stays the same: Modified or Nitrous Oxide - 0.005in x 4.00in bore = 0.020 inch ring gap

  • Cylinders/ Pistons

    The 10.5:1 pistons will provide even more power, but we do recommend race fuel for the 300/310's. 93 Octane gasoline can be used with 10.5:1 250/260 pistons, this is temperature dependent. 15F/SXR/Ultra LX pistons come standard in 12.5:1 for direct stock replacement on 93 octane gasoline.


    49.5cc chamber, 1.585" diameter intake valves, 1.350" diameter exhaust valves. 1987 and later 883 heads have a 3" round, hemispherical chamber. A squish band is still gained, however, when these heads are used over a 3.5" bore 1200 piston. The chamber volume and valve sizes remained the same as the 1986 model.

  • Cylinder and pistons buying decisions

    abilities combined with a LARGE amount of work to perform lead to very high engine temperatures. Any cylinder that can improve cooling would be a benefit on these models. A quick piston overview: We use forged pistons in 99% of our combinations for strength and weight. The top of the piston is also the floor of the combustion chamber and needs

  • QMB139 Naraku High

    As a 4 stroke cylinder is effectively just a hole, the emphasis on technological development was placed on the piston and compression. Specs: Cylinder Bore: 52.4mm Cylinder Sleeve Outer Diameter: 54.4mm Wrist Pin Diameter: 13mm Total Piston Height: 36.3mm Compression Height (from center of wrist pin hole to top edge of piston): 20mm Intake valve: 23mm

  • Piston to Cylinder Bore Clearance: How

    The reading on the bore gauge will be the piston to bore clearance. Rock the gauge back and forth and take the smallest reading. The smallest reading occurs when the gauge is perpendicular to the cylinder wall. Add the reading to 4.040 to determine the bore size. This gauge reads .0002-inches (two ten-thousandths of an inch), which is commonly