05-16-2013, 06:04 PM | #1 |
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Brake-torquing 8AT
Is brake-torquing bad for the transmission? I've never done it, and just want to check my 0-60 with BMS stage 2. I know it's probably bad to do it a lot. I just plan on doing it once.
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05-16-2013, 06:12 PM | #2 |
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The trans is built to take SOME abuse. I had about 100 runs on my one and only automatic car I used to bracket race, loading it to about 2100rpms.
I even do it on my wife's Saab to get the jump on someone. As long as you do not do it 20x a day for the next year, you'll be fine.
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05-17-2013, 03:15 AM | #3 |
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I got another question regarding the tranny: is it better to put in neutral and hold the brakes when standing on a steep hill, instead of just having it in D and brake? When standing still for a longer time in general, does it put stress on the tranny to simply brake and leave it in D? I mean the car is obviously trying to move but you're not letting it, by braking.. Is this a non-problem?
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05-17-2013, 08:23 AM | #4 | |
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05-17-2013, 09:05 AM | #5 |
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So holding the brakes when on a hill and in D, is better than holding the brakes and putting it in N? I thought Neutral means u disconnect the tranny but now I´m confused.. enlighten me please
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05-17-2013, 09:29 AM | #6 | |
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05-17-2013, 09:51 AM | #7 |
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Yes, because you are putting a bit more wear by shifting your trans in and out of D. You prefer to put the wear on the brakes by holding the car instead.
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05-17-2013, 02:34 PM | #8 | |
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05-17-2013, 02:46 PM | #9 | |
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05-17-2013, 04:31 PM | #10 | |
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I have a friend who's whole family does this shifting from D to N at red lights, but in my personal opinion, I'll bet this car would die way before that additional stress caused any problems. |
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05-17-2013, 05:02 PM | #11 | |
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This is of benefit to the MT cars, to stop roll back. The driver has time to move his/her foot to the accelerator and let the clutch out, without risk of rolling back. For the 8AT cars, it keeps the car still for around 2-3 seconds if you don't apply the accelerator. After that time, hill assist disengages and the 8AT will try to roll forward, while a 6MT will roll back. To a degree, the hill assist helps when keeping the car in D. Of course, if you have ASS active, the car's engine shuts down anyway - no stress on the tranny, so with ASS, it is better to keep the tranny in D for an instant start up when ready to move on.
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