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Old Sep 9, 2005 | 05:37 AM
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BrewPuBeaver
*Big Schpellar*
 
Joined: Jul 2005
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no! if you do it with a flash your asking your engine to blow

this is like the 20th person that wants to know or have anti lag. it isnt really feesable until you have a built motor. do people know what a Anti lag system is???

When the driver lifts his foot from the gas pedal the ignition timing is altered with sometimes 40° or more of delay (retard) and the intake air and fuel supply mixture is made richer. The inlet butterfly is kept slightly open or an air injector is used to maintain air supply to the engine. This results in air/fuel mixture that keeps getting in the combustion chambers when the driver no longer accelerates. The ignition being delayed, the air/fuel mixture reaches the exhaust tubes mostly unburned. When the spark plug fires, the exhaust valve is starting to open due to the ignition delay mentioned above. Additionally, the exhaust temperature being extremely high, the unburned fuel explodes at the contact of the exhaust tubes. Luckily the turbo sits right there and the explosion keeps it turning (otherwise it would slow down since its intake, the exhaust gases, is cut-off). The effect is vastly lower response times with some downsides:

A quick rise of the turbocharger's temperature (which jumps from ~800°C or 1400 degrees to the 1100°C+ or over 2000 degrees) whenever the system is activated

A huge stress on the exhaust manifold and pipes (mounted on a street car a bang-bang system would destroy the exhaust system within 50 miles

The turbo produces significant boost even at engine idle speeds

The explosions which occur in the exhaust tubes generate important flames which can, sometimes, be seen at the end of the exhaust tube(FLAMES!!!)
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Last edited by BrewPuBeaver; Sep 9, 2005 at 05:45 AM.
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