Sentences with phrase «roller rocker arms»

In addition, friction reduction measures include an improved valve roller rocker arm design with a new camshaft profile, small, lightweight pistons with a low friction coating, enhanced engine block rigidity and bore circularity, and low viscosity oil.

VTEC - E is the first version of VTEC to employ the use of roller rocker arms and because of that, it forgoes the need for having 3 intake lobes for actuating the two valves — two lobes for non-VTEC operation (one small and one medium - sized lobe) and one lobe for VTEC operation (the biggest lobe).

Resin coating is applied to the pistons, and lightweight aluminum material is employed for the first time in a motorcycle in the friction - reducing roller rocker arm.

Measures to reduce friction losses and thus help enhance engine efficiency include the adoption of narrow, lightweight roller rocker arms and low - friction timing chains, while D - 4S direct fuel injection helps create optimum combustion conditions, contributing to enhanced fuel efficiency.

Extensive friction reduction measures include enhanced engine block rigidity and bore circularity, an improved valve roller rocker arm design with a new camshaft profile, small, lightweight pistons with a low friction coating, low viscosity oil and a water jacket spacer.

The valvetrain uses roller rocker arms with hydraulic lifters.

[18] Additionally, the 1NR - VE features longer ports in its intake system for improved low - and mid-range torque, and a low - friction roller rocker arm - based valvetrain for improved fuel efficiency.

A 150 PS (110 kW) supercharged version of the smaller engine was added to the line - up in February 1987, [7][9] using the world's first needle roller rocker arm assembly.

The company now sells roller rocker arms, shaft mount rocker arms, valve train stabilizer kits (stud girdles), fuel rail kits, lubricants and more.

The 2010 FJ Cruiser will come with dual VVT - i and roller rocker arms on the 4.0 - liter V6, which add 19 hp and a one mpg increase.

Other differences were a higher compression, aluminum head design, crane roller rockers arms and a revised camshaft.

The valvetrain also employs roller rocker arms instead of a direct sliding system to reduce friction and improve fuel efficiency, while the intake system has been optimised with longer ports for improved low - and mid-range torque.

In addition, the engine features roller rocker arm valve - train control, a resin intake manifold with an optimised port configuration and 12 - hole, atomising, long nozzle injectors.

Measures to reduce friction losses and thus improve engine efficiency include the adoption of narrow, lightweight roller rocker arms and low - friction timing chains, while D - 4S direct fuel injection helps create optimum combustion conditions, contributing to enhanced fuel economy.

These include a highly - efficient intake port; an improved, variable intake manifold Acoustic Control Induction System (ACIS); a Tumble Control Valves (TCV) system; Dual VVT - i for both intake and exhaust camshafts; the adoption of roller rocker arms; low tension piston rings; multi-point oil jets and a variable output oil pump.

SVT modifications on the Mustang GT's 5.0 - liter block include GT - 40 style cylinder heads with special valves and roller rocker arms, a unique intake manifold, camshaft and exhaust among other things.

• Two - lobe overhead cam and a pair of needle - roller rocker arms reduce friction by 50 percent for increased fuel efficiency and torque.

These heads are equipped with two camshafts and use 4 valves on the cylinder and roller rocker arms.

The NR engine family (there's also a 1.5 L version in the Avanza) comes with intake and exhaust Dual VVT - i, teflon coating for the pistons (to reduce friction and improve durability), larger water jackets (better cooling, improved combustion, lower noise), roller rocker arm (reduces friction between rocker arm and camshaft) and iridium spark plugs (the 1.0 L KR in the Bezza and Axia also uses the latter).

Low - friction technologies such as an offset cylinder and a roller rocker arm are supplemented by such techniques as intelligent control to lessen friction during power generation and the first adoption of a shell - type needle bearing for the rocker arm shaft.

Roller Rocker arms.

Lubrication for the rollers is provided through the roller rocker arms pivot via an oil passage in the fixed pivot.

The new LZ9 3900 features Variable Cam Timing, a new feature on a pushrod engine, roller rocker arms and has a variable length intake manifold.

The engine uses low - friction technology such as an offset cylinder and a roller rocker arm for the valve gear.