Engine braking....

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Old Jan 3, 2005 | 12:45 AM
  #1  
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Engine braking....

Sorry for the dumb question...

But for the 5AT, when you use the sportshift to download and you can feel the engine braking, (or when you let it due it on it's own in D5) what part of the car does that put stress on? The transmission or the engine itself?
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Old Jan 3, 2005 | 12:49 AM
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Originally Posted by Time For Sleeep
Sorry for the dumb question...

But for the 5AT, when you use the sportshift to download and you can feel the engine braking, (or when you let it due it on it's own in D5) what part of the car does that put stress on? The transmission or the engine itself?
Both.


Don't do it from a high RPM. I do it sometimes, but once when it's at like 3500 or below.
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Old Jan 3, 2005 | 03:32 AM
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Originally Posted by Pure Adrenaline
Both.


Don't do it from a high RPM. I do it sometimes, but once when it's at like 3500 or below.

maybe its different in an auto, but you are supposed to, to some extent, use engine braking with a manual...
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Old Jan 3, 2005 | 07:01 AM
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Originally Posted by Hobo
maybe its different in an auto, but you are supposed to, to some extent, use engine braking with a manual...
yeah if u like to wear out your clutch faster. it's cheaper and easier to replace your brake pads than it is to replace your clutch
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Old Jan 3, 2005 | 07:17 AM
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I've replaced more brakes than clutches in 69k miles on my CL-S, I think I will continue to use my engine for some braking.
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Old Jan 3, 2005 | 07:25 AM
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Originally Posted by anothercls
I've replaced more brakes than clutches in 69k miles on my CL-S, I think I will continue to use my engine for some braking.
Same here. If you do it correctly and rev-match it doesn’t cause premature clutch wear.
Since 1985 I’ve only ever had one clutch that needed to be replaced and that was from a mechanical failure, not wear or abuse.
I’ve had other cars go 80K-90K-110K+ miles so I must be doing something right.
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Old Jan 3, 2005 | 08:53 AM
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It puts more stress on the transmission than on the engine itself, especially from higher rpm's.
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Old Jan 3, 2005 | 09:21 AM
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It puts stress on the entire drivetrain......the head bone is connected to the neck bone etc.,
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Old Jan 3, 2005 | 10:03 AM
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i like to upload on my sportshit.
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Old Jan 3, 2005 | 11:17 AM
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haha i like to download
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Old Jan 4, 2005 | 03:50 AM
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If you rev match and/or heel toe correctly there will be no stress on anything. rev matching preserves your syncros (spell check), clutch, and no tug on the engine which would cause your motor mounts to break. I always heel toe/rev match to help the brakes by using the motor. Also this is the best for dropping down a few gears in order to speed up. (it also sounds great)
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Old Jan 4, 2005 | 04:21 AM
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Unfortunatley, I'm talking about the automatic transmission. I don't do anything crazy with it, usually never engine break until the revs are really really low, I'll watch out for where i'm @ on the tach next time, but I just wanted to know whether i should be concerned about he engine or the transmission. I don't care about the transmission either, as it's covered under the 100k warranty anyway. Thanks for the help ya'll.
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Old Jan 4, 2005 | 04:22 AM
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Originally Posted by Jayw/clS03
If you rev match and/or heel toe correctly there will be no stress on anything. rev matching preserves your syncros (spell check), clutch, and no tug on the engine which would cause your motor mounts to break. I always heel toe/rev match to help the brakes by using the motor. Also this is the best for dropping down a few gears in order to speed up. (it also sounds great)
Wanna teach me to rev match with a frickin auto?

I guess technically i could drop it into neutral, rev slightly higher than where I need it, and gate shift, but c'mon.
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Old Jan 4, 2005 | 04:59 AM
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you will put stress for the valves because you suddenly throw down from 6th to 3rd or even 2nd will wear down the engine faster
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Old Jan 4, 2005 | 05:01 AM
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Originally Posted by goldmemberer
Wanna teach me to rev match with a frickin auto?

I guess technically i could drop it into neutral, rev slightly higher than where I need it, and gate shift, but c'mon.
i don't do that unless i really need it

sometimes i exit the hwy ramp and have to engine braking....like from 80mph to 35mph then i would pull down from 5th to 3rd

but otherwise i don't do it, i want my tranny last for a very long time
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Old Jan 4, 2005 | 05:14 AM
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it mostly puts stress on the tranny. the engine can take it just fine. and the 5at is designed so it won't let you downshift at an rpm that would harm the engine.

my theory when racing in ss mode from a roll... pull back the stick until the light blinks.

i love pulling it down into 2nd @ 50 and just romping on it.
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Old Jan 4, 2005 | 05:17 AM
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Originally Posted by goldmemberer
I guess technically i could drop it into neutral, rev slightly higher than where I need it, and gate shift, but c'mon.
i don't think you would want to do that.

i don't leave my car in D5 anymore because i forget and go to shift and put it in neutral. it's happened a few times.
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Old Jan 4, 2005 | 08:57 AM
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Originally Posted by mattg
i don't think you would want to do that.

i don't leave my car in D5 anymore because i forget and go to shift and put it in neutral. it's happened a few times.


i brake with my transmission all the time.
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Old Jan 4, 2005 | 09:06 AM
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In other news, I feel my transmission is on its last leg.
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Old Jan 4, 2005 | 09:17 AM
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Old Jan 4, 2005 | 11:17 AM
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i don't leave my car in D5 anymore because i forget and go to shift and put it in neutral. it's happened a few times.
LOL!! me too!

I don't understand why this keep getting brought up? the braking system is made to stop the car, why not use it? is it that difficult to reach the brake pedal?
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Old Jan 4, 2005 | 01:29 PM
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K, well, 'nother question to add to it then. Let's say I leave it in D5, or keep it in SS 5th gear, when I do I guess light to moderate breaking, I get a lot of steering wheel vibration unless I do the downshift manually. Is this something to worry about? It's not like, nerve wracking, it's just some slight shaking in the steering wheel. I think I read somewhere that my rotors might be warped?
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Old Jan 4, 2005 | 03:48 PM
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Originally Posted by Time For Sleeep
K, well, 'nother question to add to it then. Let's say I leave it in D5, or keep it in SS 5th gear, when I do I guess light to moderate breaking, I get a lot of steering wheel vibration unless I do the downshift manually. Is this something to worry about? It's not like, nerve wracking, it's just some slight shaking in the steering wheel. I think I read somewhere that my rotors might be warped?
if the steering wheel vibrates when you apply pressure to the brake pedal, your rotors are more than likely warped.
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Old Jan 4, 2005 | 04:18 PM
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the best part of my day is when im about to merge and im on the onramp,
rpms are hanging out right before VTEC kicks in in 2nd. and then i WOT into the merge and the VTEC comes right in... i love it. every single time i get onto a highway i wind out all of 2nd gear.
this is in my 5AT btw.
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Old Jan 4, 2005 | 09:13 PM
  #25  
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Originally Posted by car_lost
if the steering wheel vibrates when you apply pressure to the brake pedal, your rotors are more than likely warped.
Should I be scared? Cause I just got off of warranty, like, 500 miles over 50K.
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Old Jan 4, 2005 | 09:25 PM
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Naw, nothing to worry about. Any brake shop can prolly cut them for $30.00 per rotor. Just had mine done the other day.
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Old Jan 4, 2005 | 10:18 PM
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Originally Posted by Time For Sleeep
Should I be scared? Cause I just got off of warranty, like, 500 miles over 50K.
sometiems they do cover and msot of the time they dont... and that is if you are still under warranty. since you are out of warranty, now would be a great tiem to upgrade to some rotora rotors.
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