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作者: VIP |
有沒有人知道。。點火系統是怎麼樣的呢﹖
from a 94 movie of jackie chan..已經有他賽車時mizubishi 的那個exhaust 會看見火。。。
現在的頭文字D 也一直在講。。
is it...the fire to increase the combustion smoke back to the engine? to increase the hp? in the turbo or sth?  |
That is the Mis-firing system (anti-lag system)
Another solution to turbo lag is known as the misfiring system. This is not a normal feature on street cars and is a system usually used in race cars only, particularly turbocharged rally cars. Turbo systems can suffer from lag effect, especially when the driver lifts his foot off the gas to make a turn. This generates less power which in turn generates less exhaust gas and lowers the pressure needed to drive the turbine. When the turbine looses this pressure it slows down and needs time to spin up again, which creates lag in power. The Misfiring System prevents this by sensing when the driver lifts his foot off the gas/throttle and injects fuel directly into the exhaust system itself. This fuel then detonates creating a mini-explosion in the exhaust manifold and the force of the explosion is enough to maintain boost pressure needed to keep the turbo up to speed even when the car is slowing down. This virtually eliminates all turbo lag and maxmizes power for a car after it brakes and comes out of a turn. These systems are not legal on street cars and due to the constant fuel detonations, eventually destroys a turbo and exhaust system every 500-1000 km in race cars, and likely faster in street cars.
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