Are twin spark engines good?
Variable valve timing gave the Twin Spark engine very good performance for its cubic capacity, but it is one of the weaker areas of the 16-valve engine. The original variator that controls the cam timing is prone to wear or jam, although replacement part carries a different part number and has improved reliability.
What does a twin spark engine do?
The logic behind this technology is that two spark plugs can burn the fuel/air mixture much quicker than a single spark plug by ignition at two different points at once thereby giving twin spark engine cars a greater efficiency.
What is twin spark in bike?
As claimed by Bajaj Auto, Digital Twin Spark Ignition uses two spark plugs. They ignite the air-fuel mixture at the same time in the Twin-Spark technology. This simultaneous firing of the spark and the swirl created in the air-fuel mixture result in the complete burning of fuel.
Why do some engines have 2 spark plugs per cylinder?
By having two spark plugs per cylinder, your aircraft engine is more reliable, produces more power, and burns fuel more evenly. And when you combine all three, you get an ultra-reliable engine that keeps you aloft until you decide it’s time to land.
What engine has two spark plugs per cylinder?
Several modern Mercedes-Benz engines also have two spark plugs per cylinder, such as the M112 and M113 engines. Some motorcycles, such as the Honda VT500 and the Ducati Multistrada, also have dual ignition.
What is a twin spark Alfa Romeo?
In the current Alfa Romeo world the “Twin Spark” name usually refers to the dual ignition engines installed in Alfa Romeo cars. The 8-valve engine was fitted initially to the Alfa Romeo 75 but also the 164 and 155.
What is the spark plug size of an Alfa four?
The next generation Alfa fours, the JTS engines lost the second plugs gained direct injection and increased performance. The TS 16V engines, 1.6, 1.8 and 2.0, all use a 10 mm diameter and a 14 mm diameter long life platinum electrode spark plug per cylinder. The spark plugs have a replacement interval of 100,000 kilometres (62,000 mi).
Why are they called Twin Spark engines?
The Twin Spark name comes from the fact that there are two spark plugs per cylinder. It was cast iron for its higher beam strength, less complexity and hence lower production costs. When new, these engines were notable for their high efficiency as demonstrated by the BMEP (brake mean effective pressures) exerted upon the piston crowns.
When did Alfa Romeo start using electric engines in cars?
In the early 1960s it was used in their race cars ( GTA, TZ) to enable it to achieve a higher power output from its engines. And in the early and middle 1980s, Alfa Romeo incorporated this technology into their road cars to enhance their performance and to comply with stricter emission controls.