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      06-10-2011, 07:56 PM   #1
Sean91
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Is down shifting bad all the time?

If I down shift my car all the time is it bad for the clutch or tran? I have dct.
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      06-10-2011, 08:05 PM   #2
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Quote:
Originally Posted by Sean91 View Post
If I down shift my car all the time is it bad for the clutch or tran? I have dct.
if you're doing it when not appropriate then yea i think that would be unwanted strain on the transmission. Shift at the appropriate times and itll be fine. downshifting is a natural process for a transmission such as ours
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      06-10-2011, 08:24 PM   #3
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Quote:
Originally Posted by Sean91 View Post
If I down shift my car all the time is it bad for the clutch or tran? I have dct.
Did it all the time w/ '08 6MT & do it all the time w/ '11 DCT. Sure, there's a bit extra wear, but nothing that'll show 'til probably 100k miles or so?
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      06-10-2011, 08:40 PM   #4
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Downshifting is a normal function of all transmission, even Auto.
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      06-10-2011, 11:47 PM   #5
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because when im driving around in the city(philly) i usually put the drivelogic to 5 and downshift even for short distances
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      06-11-2011, 08:28 AM   #6
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i honestly don't know but since i have had my car i have down shifted alot of times and car is running strong. I think what may cause the trans to mess up could be the launch control.
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      06-11-2011, 02:21 PM   #7
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Actually if done properly it is actually beneficial. Tranny gears normally wear on just one side under load, when down shifting, from my understanding it keeps an even wear on gears. Also the higher revs help in keeping the combustion chamber clean as during the engine deceleration the car is lean. Keep in mind if you don't rev match properly you put undo strain on the synchros as well as the clutch. Since you have a DCT the computer will make sure that the downshift will be performed correctly.

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      06-11-2011, 03:37 PM   #8
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rather replace brake pads than transmission. on a track is a different story
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      06-12-2011, 12:33 AM   #9
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Quote:
Originally Posted by TrackRat View Post
^^^ FWIW, wearing both sides of the gear teeth causes more backlash in the gears which is undesirable. Engine braking really has no effect on keeping the combustion chambers clean. Most modern OEM EFI designs shut off the fuel on closed throttle deceleration (overrun), so only air is run thru the engine until the throttle is opened or the engine is close to idle speed.

That being said down shifting at the proper RPM is just fine and normal. The slight increase in wear of the clutch and trans is normal. Abusive down shifting is totally different and to be avoided.
Hey Track, shows you how old school I am.

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      06-12-2011, 12:40 AM   #10
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Quote:
Originally Posted by Martin_D View Post
rather replace brake pads than transmission.
Always one person that has to say this.....


I've never had, or met anyone who had to have their transmission changed due to downshifting or engine breaking a manual car.

If you drive a manual car and exclusively use the brakes, you are not driving the car properly and will be replacing brakes and rotors regardless if you track.
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      06-12-2011, 03:10 PM   #11
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Quote:
Originally Posted by SIIK2NR View Post
Always one person that has to say this.....


I've never had, or met anyone who had to have their transmission changed due to downshifting or engine breaking a manual car.

If you drive a manual car and exclusively use the brakes, you are not driving the car properly and will be replacing brakes and rotors regardless if you track.

i track my cars, i dont give a shit about downshifting coming to a stop light so you can hear my cool exhaust.
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      06-12-2011, 05:00 PM   #12
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Quote:
Originally Posted by Martin_D View Post
i track my cars,
Let me guess..... You have DCT.
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      06-12-2011, 08:22 PM   #13
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Downshifting is for setting up for corners. If i'm stopping at a red light I just pursh the clutch in an use the brakes. Brakes are a lot cheaper to replace than the clutch is.
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      06-12-2011, 08:27 PM   #14
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Quote:
Originally Posted by SIIK2NR View Post
Let me guess..... You have DCT.
yeah my gt3 has dct you dumbass
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      06-12-2011, 08:48 PM   #15
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Quote:
Originally Posted by Martin_D View Post
yeah my gt3 has dct you dumbass
haha, not taking sides but that was funny!

Martin D had one of the top 5 E92's in the world. It was on another level. Pretty sure it was Manual as well.

Martin how you liking the GT3 ? I remember going from the M3 to the Gt3, god damn I miss my GT3
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      06-12-2011, 08:52 PM   #16
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Originally Posted by DD GT3 RD View Post
haha, not taking sides but that was funny!

Martin D had one of the top 5 E92's in the world. It was on another level. Pretty sure it was Manual as well.

Martin how you liking the GT3 ? I remember going from the M3 to the Gt3, god damn I miss my GT3
gt3 on track is a hoot, been doing a ton of events...

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      06-13-2011, 09:03 AM   #17
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Quote:
Originally Posted by Martin_D View Post
i track my cars, i dont give a shit about downshifting coming to a stop light so you can hear my cool exhaust.
Cool story bro.

It's not bad to downshift your automatic, sorry, DTC transmission. It's also not bad for the transmission if you upshift. And it's not bad for the engine if you turn it on and drive the car.

It's a car, if properly maintained it will do what it's designed to do for a long time.
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      06-13-2011, 12:05 PM   #18
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Quote:
Originally Posted by Muffnbluff View Post
Cool story bro.

It's not bad to downshift your automatic, sorry, DTC transmission. It's also not bad for the transmission if you upshift. And it's not bad for the engine if you turn it on and drive the car.

It's a car, if properly maintained it will do what it's designed to do for a long time.
i dont have a dct - dont call me bro either

read what i said - i have a GT3

wanna talk about maintaining the cars? i track them - about 15 times a month. come talk to me at the track about maintaining them.

edit: go suck it

Last edited by Martin_D; 06-13-2011 at 12:12 PM.
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      06-13-2011, 01:00 PM   #19
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      06-13-2011, 01:22 PM   #20
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      06-13-2011, 01:34 PM   #21
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Quote:
Originally Posted by Martin_D View Post
i dont have a dct - dont call me bro either

read what i said - i have a GT3

wanna talk about maintaining the cars? i track them - about 15 times a month. come talk to me at the track about maintaining them.

edit: go suck it
I did read what you said, everything after "Cool story bro." was referring to the OP. Why are you so mad? I really liked your story about how you're too cool to downshift coming to a stop light.

Oh and remind me one more time, what kind of car do you have? And do you track it alot?
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