Toyota also reduced friction between
piston skirt and cylinder.
Piston slap is a noise created by the piston to cylinder wall clearance being excessive, or the cylinder bore being out of round, so
the piston skirt slaps in the bore as it travels up and down..
Cylinder noise like this should always be checked out as ignoring it could lead to
piston skirt wear / failure over time.
Piston slap is another noise usually caused by an excessive gap between the piston and cylinder and this is where
the piston skirt (the bottom edge) hits the cylinder wall.
The 3.6 - liter Pentastar V - 6 engine is an all - new design, featuring dual overhead camshafts (DOHC), aluminum exhaust manifolds, polymer - coated
piston skirts, forged connecting rods and a high - pressure die - cast aluminum cylinder block in a 60 - degree configuration.
Even more, this V8 offers Dual Continuously Variable Valve Timing (D - CVVT), a tuned variable induction system, and low - friction coatings on
piston skirts.
Diamond - Like Carbon Coating (DLC) has been used to reduce friction on the fuel pump tappets and a solid film lubricant has been used to coat
the piston skirts.
Compact and lightweight, the all - aluminum, 60 - degree V - 6 features double - overhead camshafts (DOHC) with dual - independent cam phasers, integrated exhaust manifolds, polymer - coated
piston skirts, forged connecting rods and a high - pressure die - cast aluminum cylinder block in a 60 - degree configuration.
Cylinder bore machining has been improved and a piston surface treatment applied to
the piston skirts, reducing sliding resistance.
The engine also features increased cylinder block height (from the previous 3.5 - liter design), ladder frame construction for greater rigidity, large crank journal and pin diameters, asymmetric
piston skirts, twin knock sensors, an electronically controlled «drive - by - wire» throttle system, molybdenum coated lightweight pistons, Iridium spark plugs and a symmetric twin air intake system.
5.0 R - Spec Direct Injection Tau V8 engine Even more, this new V8 still offers all of the premium engine technology from the 4.6 - liter V8, including Dual Continuously Variable Valve Timing (D - CVVT), a tuned variable induction system, and low - friction diamond - like coatings (DLC) on
piston skirts, rings and tappets.
Other engine enhancements include the addition of standard variable exhaust cam timing (eCVTCS), a higher rev limit (increased from 6,600 rpm to 7,500 rpm) and higher compression ratio (10.6:1 versus the previous 10.3:1), asymmetric
piston skirts, twin knock sensors, improved coolant flow and new Iridium spark plugs.
Dual Continuously Variable Valve Timing (CVVT) combined with a piston - cooling oil jet improves engine efficiency, while engine components, including piston rings,
piston skirts, valve tappets, timing chain guide and valve springs are all of a low - friction design.
An innovative coating on
the piston skirts and mounting the balance shafts in roller bearings keep internal friction low.
The piston skirts are given an Eco-Tough coating, a special graphite coating for optimized friction and high wear resistance.
Not exact matches
not that a
piston can't be strong workout a
skirt there are many without, but this one was designed with it so... too many unknowns here.
The
pistons have no expander behind the oil control ring, and their
skirts are shorter.
It happens when there is «too much» room for the
piston in the cylinder and the
skirt of the
piston hits the cylinder wall.
The outer
skirts of lightweight aluminum
pistons feature a low - friction coating applied in a unique pattern.
The lightweight
pistons have a carefully optimized
skirt design to minimize reciprocating weight, which minimizes vibration and increases operating efficiency.
New
pistons were installed in the cylinder block, they had slightly modified
skirts for friction drop.
Optimizing the shape of its
skirt helped to remove weight from the
pistons.
Lightweight
pistons have a carefully optimized
skirt design to minimize reciprocating mass, and reduced weight minimizes vibration and increases operating efficiency.
The outer
skirts of the lightweight aluminum
pistons feature a low - friction molybdenum coating applied in a unique dot - pattern.
Pistons have been designed with a reduced
skirt area to help reduce both weight and friction.
The outer
skirts of lightweight aluminum
pistons feature a low - friction coating applied in a unique pattern application.
As with other engines in the Ecotec family, the 2.0 - liter Turbo engine also has premium features designed to ensure smooth and quiet operation, including a polymer coating and
skirt design for the
pistons that reduces noise during cold starts.
These include Toyota's Variable Valve Timing with intelligence (VVT - i) system; special lightweight
pistons with resin - coated
skirts to help reduce friction and noise; a two - stage, variable - length intake manifold, which improves mid-range to high - speed performance; newly designed 12 - orifice fuel injectors; Toyota's Direct Ignition System (DIS), which eliminates the distributor and its associated wiring; and a lightweight electronic throttle.
Pistons have a reduced
skirt area to cut weight and friction.
Every component, from the gun - drilled crank and short -
skirt pistons, to the 10 - quart composite oil pan, was clearly engineered for a specific purpose.
The lightweight
pistons have a carefully optimized
skirt design to minimize reciprocating weight, and reduced weight minimizes vibration and increases operating efficiency.
Short -
skirt, cast - aluminum, flat - top
pistons are notched for valve clearance and fitted with full - floating
piston pins.
Pistons use two - piece oil rings for low friction, and the
skirt area is resin - coated to reduce noise and vibration.
Phone: 805-436-2533 E-mail:
[email protected] Website: www.vortechsuperchargers Booth Number: 23063 Vehicle Builder: Noel Barnum Powertrain / Drivetrain Type and Modifications: Vortech V - 3 H67BC supercharger; Borla unequal - length header; Miltek up pipe; ARK Performance test pipe and performance DT - S exhaust Chassis Type and Modifications: Airrex digital air suspension and management; Whiteline strut tower bar, positive shift kit bushing, crossmember mount insert bushing, rear diff mount in cradle bushing and lower control arms; Hotchkis sway bars; AP Racing six -
piston front and four -
piston rear big - brake kit; Work VS - KF wheels; Falken Azenis FK453 tires Exterior Modifications: Rocket Bunny over fenders, rear diffuser and rear spoiler; Vertex front lip and side
skirts; Beatsonic rear window spoiler and shark - fin antenna; GT86 headlamps; Crystal - eye fog lamps; MV Designz taillamps Interior Modifications: Illest Bride Zeig III type R seats; Cusco Safety21 polished rollcage; Vertex steering wheel; Works Bell GT - C quick release and short boss hub; Seibon carbon - fiber rear seat delete; OEM Audio + dual custom flush subwoofer mount enclosures; MV Designz recessed air tank and air valves
It features geometric grille inserts, deep air intakes with stacked fog lights, side
skirts, stylish side mirrors, vented brake discs with four -
piston calipers, 19 - inch forged alloy wheels with low - profile tires and adjustable height racing suspension.
Aluminium
pistons use fully floating 24 - mm diameter pins and polymer - coated
skirts to allow tighter
piston clearances for quieter cold starts.