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Old 08-29-2014, 08:53 AM   #1
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Join Date: May 2008
Location: Newport, KY
Posts: 202
Downshifting

After reading a blog on another site about downshifting I am a little confused. I fully admit I have never raced nor am a I mechanic, but have driven manual shift vehicles nearly my entire 42 years of driving.

The blogger made the statement, and several other posters agreed, that you should never blip the throttle to rev match when downshifting with the clutch disengaged (pedal to the floor) because it will cause premature wear and damage to the throw out bearing. My question is, "Isn't that exactly what you do when you heel toe?" The left foot pushes the clutch pedal to the floor while the right foot depresses the brake and rolls over to blip the throttle.

So, what it the difference? Why would heel toe not hurt the TOB But downshifting by simply rev matching (in situations where you want to keep the rpms up but are not necessarily braking (up hills, off ramps, turning corners) cause damage?
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