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Old Mar 10, 2009 | 11:50 AM
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Default Downshifting

Just a curious question. How many of you do any great amount of downshifting for braking in your normal day to day driving? Personally, I seldom downshift for braking. Maybe I am not driving a vette the way I am supposed to?????????????? I am usually planning ahead and end up going to neutral and coasting until I need the brakes to ease in at the light, off ramp or what ever, which also helps of mileage. You input.
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Old Mar 10, 2009 | 12:06 PM
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I down shift. It saves some brake wear plus I just like doing it.
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Old Mar 10, 2009 | 12:08 PM
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Mickey;

I do a lot of downshifting. I limit my time spent in neutral while moving as I want to be able to accelerate out of a "situation" if I need to.

I am not a fanatic about it but I believe coasting in neutral can be dangerous.

Also, my Vette is not my daily driver so I am not concerned about gas mileage.

I want performance and control.

My 2 cents...

Jeff
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Old Mar 10, 2009 | 12:10 PM
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With the high performance brakes these Vettes have, engine braking is not needed or recommended. Instead, use downshifting as required to be in the desired gear when it's time to get back on the throttle.
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Old Mar 10, 2009 | 12:11 PM
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Worn brakes are cheaper to replace than a worn clutch. If I do downshift to slow down, I rev match.
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Old Mar 10, 2009 | 12:12 PM
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A while back, I guy on here said it's excessive wear and tear on the transmission and that's what the brakes are for???? Huh?
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Old Mar 10, 2009 | 12:12 PM
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In my boosted C5 lots of downshifting to hear the roar and let everyone else know I am leaving my footprint for Al Gore to see
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Old Mar 10, 2009 | 12:17 PM
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Unless you are trying to learn how to or already know how to heel & toe while downshifting, I wouldn't bother-brakes are a lot cheaper to replace then a transmission.
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Old Mar 10, 2009 | 12:21 PM
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Originally Posted by AutoCutter
Unless you are trying to learn how to or already know how to heel & toe while downshifting, I wouldn't bother-brakes are a lot cheaper to replace then a transmission.
That's true, and it's what I do. When I want to practice, I do it. Otherwise, I'd rather pay for brake pads and rotors than a transmission and/or clutch.
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Old Mar 10, 2009 | 12:40 PM
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Downshifting is fun and sounds great with the headers and bullets, so I do a fair amount of it with my A6 in paddle mode.

Fun is what this car is about for me, so I'm a downshiftin' fool! Having it in gear when you get back on it is definitely a necessity!

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Old Mar 10, 2009 | 12:55 PM
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Originally Posted by jeffjob
Mickey;

I do a lot of downshifting. I limit my time spent in neutral while moving as I want to be able to accelerate out of a "situation" if I need to.

I am not a fanatic about it but I believe coasting in neutral can be dangerous.

Also, my Vette is not my daily driver so I am not concerned about gas mileage.

I want performance and control.

My 2 cents...

Jeff
Since I am already thinking and planning ahead, I am alert and to get into gear is pretty fast, but your point is well taken. Should I just coast with the clutch in so I can get in a gear I want and be ready?????? Is keeping the clutch in while coasting doing anything bad to the clutch?
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Old Mar 10, 2009 | 01:00 PM
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I downshift while braking most of the time on the street. Good practice for my heel & toe technique. The Flows sound cool and it's fun.
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Old Mar 10, 2009 | 01:01 PM
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Originally Posted by mickeykelley
Since I am already thinking and planning ahead, I am alert and to get into gear is pretty fast, but your point is well taken. Should I just coast with the clutch in so I can get in a gear I want and be ready?????? Is keeping the clutch in while coasting doing anything bad to the clutch?
Mickey;

I don't think coasting with the clutch in for a limited distance is a problem. I will do that as I approach a stop, maybe while shifting into first.

Like I said, I am not a fanatic about it but I try not to spend too much time in neutral. If I am sitting at a light, I prefer to be in first gear with the clutch in.

Making that a habit will limit that occasion when I don't see someone heading for me fast and I am not already in gear.

Jeff
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Old Mar 10, 2009 | 01:03 PM
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Originally Posted by mickeykelley
Is keeping the clutch in while coasting doing anything bad to the clutch?
No.....just keep your clutch fluid maintained so you get full movement and disengagement.
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Old Mar 10, 2009 | 01:16 PM
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Originally Posted by mickeykelley
Since I am already thinking and planning ahead, I am alert and to get into gear is pretty fast, but your point is well taken. Should I just coast with the clutch in so I can get in a gear I want and be ready?????? Is keeping the clutch in while coasting doing anything bad to the clutch?
By leaving the clutch in for extended periods of time, you are adding extra wear to the throw out bearing, as it is loaded by the pressure plate. I would not do that.

I heel & toe for the purposes of being in the proper gear while braking (let's me brake later into a corner), ready for acceleration, and/or for smooth progressively powered exits out of corners.

I agree that slowing down using the engine is not a good practise anymore. Pads are cheaper than clutches, Corvettes have very very good brakes, and by using the engine you are upsetting the brake balance (front to rear) engineered into the car.
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Old Mar 10, 2009 | 01:26 PM
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The debate on this has always been that brakes are cheaper than a clutch. The way I look at it is I've owned manual gearbox cars for years, put almost 100K miles on them and never went through a single clutch - not going change my habits now. I almost always downshift but I do blip the throttle to try and match the revs.
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Old Mar 10, 2009 | 01:36 PM
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I find myself downshifting for engine braking much less in the Corvette than in any previous car I've owned. Could be partly because I've still got that "new car" mentality of being nice to it since I was the original owner and had to go through the break in period.

Probably more it has to do with the driving dynamics of the C6, and the gearing and the brakes. I don't hesitate to downshift when I plan to apply power, but I do find myself not using much engine braking with this car. And the new Bosch brakes are excellent. It's less boost than I'm used to but when you get on it, they do a great job for a street car and the ABS seems invisible to me (no pulsing feel in the pedal like all my previous cars).
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Old Mar 10, 2009 | 01:43 PM
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Mickey,

All the above answers are great. They show personal choice.
My guide to down shifting in regular city traffic situations is to move to the gear that will keep me above 900-1000 RPM and then I can accelerate with easy.
Stop signs and stop lights I will stay in a gear as I approach the area I will have to come to a stop but if I know I have to come to a complete stop at a sign I will shift to 1st but if the stop condition is a long red light I shift to neutral to eliminate the clutch pressure on those components including my left foot.
I not good on the rev match down shifting into 4th, 3rd and 2nd and I never try to rev match to 1st. Up shift is great.
Fortunately most of my driving is highway in the "corvette lane"
Hope this provides another insight.
Mike
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Old Mar 10, 2009 | 01:45 PM
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Would make a difference if you have an auto or manual. Owned manuals for last 25+ years and never had an issue with down shifting. Paddel shift might be a little different. On the race track a combination of heel toe, rpm match, and down shift is how I was taught.
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Old Mar 10, 2009 | 01:46 PM
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Originally Posted by ufaj26
I down shift. It saves some brake wear plus I just like doing it.
Of course, brake pads are a lot cheaper than clutches and syncros...
I save the downshifting for performance driving situations. (It is fun, though.)

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