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      06-04-2012, 10:50 PM   #1
Meeni
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Drives: BMW 330i 06
Join Date: Apr 2012
Location: TN

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Rev matching on ZF auto trans?

Hi all,

To my despair, I have an auto transmission. It is the 330i ZF auto trans. It does an ok job, and I do not have to complain too much about it as long as it is in sport mode (anyway I set it to semi auto almost all the time).

However, it gives me a hard time revmatching. I have always been doing heel-toe on my previous cars, but it seems to not work well with this one (my first auto). The delay between the action on the lever and the actual downshift is anything between .3 to a full second. It is unpredictable, and makes "blipping" very hard. I resorted to toe-heel (heel on the brake, toe on the gas steady at 4k5 rpm), which does a great job of rev matching but also adds significant torque on the rear while braking and probably increases significantly stopping distance.

What do you fellow AT inmates do as revmatching?
Appreciate 0