Sentences with phrase «in combustion chamber design»

I would suggest that the OP's modern 10.5:1 CR engine can cope with lower octane fuel because of advances in combustion chamber design.

Not exact matches

This has prompted IRIS Engines, based in Washington DC, to design a combustion chamber called the internally radiating impulse structure (IRIS).

The portions of the plugs that reside in the combustion chamber are designed to tolerate the heat and pressure there.

While the iron block and forged steel crankshaft were sourced directly from the InTech 5.4 L, the Cobra R powerplant benefited from new, high - flow cylinder heads that were designed with features developed for Ford's «Rough Rider» off - road racing program, application specific camshafts with higher lift and more duration than other 4 - valve Modular cams, forged I - beam connecting rods sourced from Carillo, forged pistons that provided a 9.6:1 compression ratio in conjunction with the 52 cc combustion chambers, and a unique high - flow «cross-ram» style aluminum intake manifold.

• Fully CNC - ported • 356 - T6 aluminum racing head • 5/8» thick deck • LSX - CT rectangle - intake port design — requires LSX - CT intake manifold • LSX - CT / DR spread - port exhaust port pattern • Cast - in down - nozzle bosses (not machined) • Designed for 2.200» intake and 1.610» exhaust valves • Machined for 1.625» valve springs • 11 ° valve angle • Minimum 4.125» bore • 302cc CNC'd intake ports • 109cc CNC'd exhaust ports • 45cc CNC'd combustion chambers • Capable of over 850 naturally aspirated horsepower!

Key changes to the engine include moving the spark plug to a central location in the combustion chamber and pistons that have a complex design on the surface to contain the air - fuel mixture.

This division of labor results in increased engine efficiency and power because it permits better combustion chamber design.

The combustion chamber's design produces greater turbulence and better gas combustion at low engine speeds, and also obtains optimum performance in the high engine - speed range thanks to improved cylinder filling.

A design with the combustion chamber in the piston is called a Heron head, where the head is machined flat but the pistons are dished.

To avoid the inconvenience associated with the unprecedented pressure in a petrol engine, particularly the rattling, Mazda has also designed a suitable combustion chamber and developed a new injection system.

Mechanically, the 282 cu in (4.6 L) engine obtained substantial engineering upgrades in the form of an all - new head design with improved cooling system and Quench - type combustion chambers, a higher 8.0:1 compression ratio and a new two - barrel aluminum intake manifold while the rear differential gear ratio changed from 3.31:1 to 3.07:1.

They feature a high - tumble intake port design that enhances the motion of the air charge for a more - efficient burn when it is mixed with the direct - injected fuel and ignited in the combustion chamber.

Combustion chambers The IS F's compact pent - roof combustion chamber design positions the long - reach sparkplug nearly in the centre.