KStromberg
Dedicated LVC Member
You hold the brake and go WOT and let off the brake all in one very quick motion on the last amber essentially launching before the converter has a chance to fully preload. So basically you are going wide open throttle with the brake applied for a very brief time and the car launches WOT when you let off the brake. It's tricky as hell, but I've got my best 60' so far doing that. The flash stall will reach the true stall of the converter unlike a brake stall.
From a quick search:
"Note: Using the flash stall to launch from idle is also the more efficient way to “leave the line”, as it doesn’t have any effect on the engine during take-off."
Also:
Foot-brake stall is just that: You load the converter by stomping one foot on the brake pedal and the other on the gas. Watch the tach. The RPM at which the converter overpowers the brakes is simply the "foot-brake stall".
"Flash speed," on the other hand, is very different. Flash occurs the instant you release the foot-brake and the rotating inertia (which is "stored" in the engine-flexplate-converter) is released. This flash speed can be anywhere from 500-2500 RPM higher than the foot-brake-stall speed. In a racecar, the typical “flash –the-converter process” usually works like this: Stage at idle, hold the brakes with one foot and "flash" the converter (flooring the gas pedal with the other foot, and simultaneously releasing the foot-brake) the instant the last yellow on the Christmas Tree comes on. The sensation is a form of “slingshot” effect as the car leaves.
From a quick search:
"Note: Using the flash stall to launch from idle is also the more efficient way to “leave the line”, as it doesn’t have any effect on the engine during take-off."
Also:
Foot-brake stall is just that: You load the converter by stomping one foot on the brake pedal and the other on the gas. Watch the tach. The RPM at which the converter overpowers the brakes is simply the "foot-brake stall".
"Flash speed," on the other hand, is very different. Flash occurs the instant you release the foot-brake and the rotating inertia (which is "stored" in the engine-flexplate-converter) is released. This flash speed can be anywhere from 500-2500 RPM higher than the foot-brake-stall speed. In a racecar, the typical “flash –the-converter process” usually works like this: Stage at idle, hold the brakes with one foot and "flash" the converter (flooring the gas pedal with the other foot, and simultaneously releasing the foot-brake) the instant the last yellow on the Christmas Tree comes on. The sensation is a form of “slingshot” effect as the car leaves.
