Made a new purchase
#82
05-23-2011, 11:56 PM
When you down shift normally (in performance driving especially), the speed of the engine (RPMs) rises from a lower RPM to a higher RPM very quickly. This causes the car to jolt, and the tires to cherp (the engine speed doesn't match that of the wheels). Sometimes in racing a car can even spin out or go off track because of the imbalance. When you "heel and toe" you lightly blip the throttle when you have the clutch pedal pressed in and are down shifting. This raises the engine speed gradually, and avoids the instant 4k-8k rpm jolt. Thus making the down shift smooth. Seldom do racing drivers ever not heel and toe.
Kind of hard to explain, hope I helped!
BTW, watch this video. See as he blips the throttle upon downshifting?
YouTube - ‪Porsche Carrera GT Heel-toeing‬‏
Last edited by Carrera; 05-24-2011 at 12:01 AM.
#84
05-25-2011, 09:57 AM
I've never driven a car, but here's why.
When you down shift normally (in performance driving especially), the speed of the engine (RPMs) rises from a lower RPM to a higher RPM very quickly. This causes the car to jolt, and the tires to cherp (the engine speed doesn't match that of the wheels). Sometimes in racing a car can even spin out or go off track because of the imbalance. When you "heel and toe" you lightly blip the throttle when you have the clutch pedal pressed in and are down shifting. This raises the engine speed gradually, and avoids the instant 4k-8k rpm jolt. Thus making the down shift smooth. Seldom do racing drivers ever not heel and toe.
Kind of hard to explain, hope I helped!
BTW, watch this video. See as he blips the throttle upon downshifting?
YouTube - ‪Porsche Carrera GT Heel-toeing‬‏
When you down shift normally (in performance driving especially), the speed of the engine (RPMs) rises from a lower RPM to a higher RPM very quickly. This causes the car to jolt, and the tires to cherp (the engine speed doesn't match that of the wheels). Sometimes in racing a car can even spin out or go off track because of the imbalance. When you "heel and toe" you lightly blip the throttle when you have the clutch pedal pressed in and are down shifting. This raises the engine speed gradually, and avoids the instant 4k-8k rpm jolt. Thus making the down shift smooth. Seldom do racing drivers ever not heel and toe.
Kind of hard to explain, hope I helped!
BTW, watch this video. See as he blips the throttle upon downshifting?
YouTube - ‪Porsche Carrera GT Heel-toeing‬‏
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