is downshifting bad for the clutch/transmission in the s4?
01-06-2002, 07:48 AM
#2
Ummmmm...... Well, seeing how you HAVE to downshift I am gonna say...
no. Slamming the tranny into gear when you down shift can't be good for it, but other than that it should be just fine.
If you worried, you can 2x clutch or heel and toe when you down shift to help save the synchros.
If you worried, you can 2x clutch or heel and toe when you down shift to help save the synchros.
01-06-2002, 08:30 AM
#5
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Re: is downshifting bad for the clutch/transmission in the s4?
In general NO---BUT---
Brakes are for braking and transmissions are to keep the motor in a desirable rev range. The problem,however, is that the pedal placement on the S4 is simply ****---it's too damn difficult to smoothly and accurately heel-n-toe with this buggy( that, and the shifter, are the only things I miss from my old E36 BMW)Heel-n-toe downshifting is not necessary for street use---No one should be driving that hard on the street. In general your clutch takes the abuse when you don't match revs--
So what does one do--
Use the massive amount of torque available with the motor...if your driving 6 or 7 10ths on the street the heel-n-toe method is not necessary---downshift as you approach the corner, use the brakes to kill speed and use the torque of the engine to blast through and out of the apex(remember you have AWD)...If you need to drive any harder get yourself to a track and get a drivers school under your belt...Just my opinion
Brakes are for braking and transmissions are to keep the motor in a desirable rev range. The problem,however, is that the pedal placement on the S4 is simply ****---it's too damn difficult to smoothly and accurately heel-n-toe with this buggy( that, and the shifter, are the only things I miss from my old E36 BMW)Heel-n-toe downshifting is not necessary for street use---No one should be driving that hard on the street. In general your clutch takes the abuse when you don't match revs--
So what does one do--
Use the massive amount of torque available with the motor...if your driving 6 or 7 10ths on the street the heel-n-toe method is not necessary---downshift as you approach the corner, use the brakes to kill speed and use the torque of the engine to blast through and out of the apex(remember you have AWD)...If you need to drive any harder get yourself to a track and get a drivers school under your belt...Just my opinion
01-06-2002, 08:41 AM
#6
you don't "have" to downshift ...sequentially anyway.
coming to a stop light from 4th gear, apply breaks, just before stop, shift into 1st.
and YES i'm being "****".
sorry ;-)
and YES i'm being "****".
sorry ;-)
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01-06-2002, 10:54 AM
#9
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just letting out the clutch to downshift will wear it out faster...
but if you're rev-matching (through heel and toe, double-clutching or both) then there shouldn't be any additional wear.
If you're not rev-matching, i would just use the brakes.
If you're not rev-matching, i would just use the brakes.
01-06-2002, 11:53 AM
#10
Avoid over revving when downshifting, first, for obvious reasons...
but also becuase the rev limiter is throttle activated with DBW and will offer no protection to piston/valve damage if the clutch is just dumped and you hit the wrong gear... ie. fifth to second instead of fifth to forth or, sixth to third instead of sixth to fifth...