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Eric B. (Ebbnyc)
New Member
Username: Ebbnyc

Post Number: 10
Registered: 05-2003
Posted on Friday, August 08, 2003 - 03:19 pm:   Edit Post Delete Post Print Post

I've got in the habit of downshifting at stops in an attempt to give my brakes a break in the city... Better? Worse? No difference?
Thanks for any feedback,
Eric
 

Al Oliveira (Offroaddisco)
Senior Member
Username: Offroaddisco

Post Number: 1475
Registered: 04-2002
Posted on Friday, August 08, 2003 - 04:20 pm:   Edit Post Delete Post Print Post

Your choice... less than $200 for a set of brake pads or over $2000 for transmission and/or engine?

just remember Go peddal to GO and stop peddal to STOP

Just my 2 cents :-)
 

M. K. Watson (Lrover94)
Senior Member
Username: Lrover94

Post Number: 998
Registered: 02-2002
Posted on Friday, August 08, 2003 - 04:39 pm:   Edit Post Delete Post Print Post

here's my penny, if you are using the ENGINE COMPRESSION to assist your braking by the CONSERATIVE application of a manual actuated transmission then you will be ok, just wears the clutch a bit more, but only a very little bit, you kill it more on take off than the landing. the same could be done with an automatic but i would not recommend it. if you have alot of green do what ever you want.

mike w
 

Douglas McMillan (Mcmillan)
Member
Username: Mcmillan

Post Number: 58
Registered: 06-2002
Posted on Friday, August 08, 2003 - 06:08 pm:   Edit Post Delete Post Print Post

To correctly brake you should be down shifting at the same time as applying the brake. I have a 94 manual and that is what I do. This gives an even more controled stop. It is how the UK drivers are taught to drive and they all use manual trannys. Don't over use one or the other.
 

Peter Matusov (Pmatusov)
Senior Member
Username: Pmatusov

Post Number: 979
Registered: 09-2002
Posted on Friday, August 08, 2003 - 06:24 pm:   Edit Post Delete Post Print Post

Eric, with an automatic it doesn't make any sense to manually downshift in city driving (unless your brakes are already shot past any safe limit). It makes a lot of sense, however, while going downhill on highway grades - something that most people never do. Yes, you will incur a bit faster wear on transmission and engine (which is really hard to evaluate), but you'll buy a larger margin in safety.
 

Chris Browne (Chris_browne)
Senior Member
Username: Chris_browne

Post Number: 270
Registered: 02-2003
Posted on Friday, August 08, 2003 - 07:02 pm:   Edit Post Delete Post Print Post

Try this one.....
Years ago I drove up Mt Washington in NH. On the way down, third low range was the perfect gear. Barely touched the brakes all the way down
 

William C. Leek (Onionman)
Member
Username: Onionman

Post Number: 101
Registered: 07-2002
Posted on Friday, August 08, 2003 - 07:14 pm:   Edit Post Delete Post Print Post

Chris,

Same here at Glacier National Park - when coming down the west side on the Going-to-the-Sun Road, I use third gear in low range. Rarely need the brakes. It does make the tansmission/transfer case whine a bit. Second gear in high range also works, but I need the brakes a bit more.
 

Dean Brown (Deanbrown3d)
Senior Member
Username: Deanbrown3d

Post Number: 717
Registered: 02-2002
Posted on Friday, August 08, 2003 - 07:24 pm:   Edit Post Delete Post Print Post

Eric, when I'm in traffic or going round the block here and there, I stay in 1st gear and hardly ever have to brake much. I let it go 2nd if I get above about 1800-2000 rpm.

In addition, maybe once a week in bad traffic, I change into low-ratio for while, to keep the cobwebs off the t-case. And since I have a D2, I let the HDC take me down a steep hill about once a month, to keep the webs off that part too.

Dean
 

Al Oliveira (Offroaddisco)
Senior Member
Username: Offroaddisco

Post Number: 1478
Registered: 04-2002
Posted on Friday, August 08, 2003 - 09:20 pm:   Edit Post Delete Post Print Post

Douglas, I know it's common in many parts to brake and downshift at the same time but the idea that it gives you more control is not 100% true. Ask anyone who's spent time on a race track about the dynamics of the vehicle and the shift in weight if you brake and downshift while maintaining power to the drive wheels in a turn. When you see people do that on the track they're keeping a foot on the clutch, one on the brake and one on the gas (I know that's 3 feet) and they try to match RPM's for the given speed to the drive wheels so that when they come out of the turn the rear wheels aren't slowing the car down at all.

Granted our Disco's are hardly track vehicles but the idea is the same. Using the engine on long downward grades is an acceptable practice. This helps reduce brake fade and keep temperatures down.
 

Garth Petch (Garth)
New Member
Username: Garth

Post Number: 13
Registered: 02-2003
Posted on Saturday, August 09, 2003 - 08:19 am:   Edit Post Delete Post Print Post

Douglas,

The correct way to drive a manual car is to be in the appropriate gear for the speed you're going, so going down through the gears as you brake ensures that you are in a position to accelerate immediately.

The auto will change gears quicker than you can (the Disco's manual gearbox and shift is not one of the slickest around).

Unless you're in a position where engine braking is safer than using the brakes, and given that engine braking on an auto is not as good as a manual, there's nothing to be gained by using an auto gearbox as a manual in normal situations.

It's fun though

Garth
 

M. K. Watson (Lrover94)
Senior Member
Username: Lrover94

Post Number: 999
Registered: 02-2002
Posted on Saturday, August 09, 2003 - 10:25 am:   Edit Post Delete Post Print Post

Al, i thought they had the left on the clutch and the right foot braking and punching the go pedal to match the RPM to the road speed to keep from 1. tearing the drivetrain up and 2. keeping the ass end from passing the front end due to over braking the rear axle from high engine compression. but i could be wrong, NOT!

:o)

Mike W
 

Kenny Bissett (Jetson)
New Member
Username: Jetson

Post Number: 30
Registered: 07-2003
Posted on Saturday, August 09, 2003 - 10:37 am:   Edit Post Delete Post Print Post

When I came down from the top of Pikes Peak, almost every car had overheated brakes - my disco though - got the thumbs up from the guy with the temp gauge. He told me "nice job coming down".

I used the engine and transmission to come down. I'm sure it was more wear and tear on the drivetrain, but at least I passed the brake check!

Kenny
 

Al Oliveira (Offroaddisco)
Senior Member
Username: Offroaddisco

Post Number: 1479
Registered: 04-2002
Posted on Saturday, August 09, 2003 - 10:43 am:   Edit Post Delete Post Print Post

Mike, yeah... that too :-)

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