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Proper downshift?

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Old 03-13-2014, 06:36 AM
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Maybe you should give us all a break and use your brakes. ..... before you post. We won't miss you if you pack up and Find another forum to talk about breaks for stopping
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Old 03-13-2014, 08:29 AM
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lol not a surprise from you, physics and reality be dammed...your engine never causes drag! It's everyone that everyone else doesn't know how to drive. Thank you for driving my last post home!

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Old 03-13-2014, 02:44 PM
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Not sure how you think physics is going to be on your side

The amount of deceleration from engine braking is powers of magnitude different than using the brakes.

No one is arguing that you don't slow down when you take your foot off the gas....just that you can't count on it to stop...

Think about it this way...in an emergency stop...what would you want the person behind you to do...use their brakes....or downshift and wait till the car slows down from engine braking?

As far as reality goes....you must be smoking something if you can't see that

As for driving skills....I'm sure I've been driving may more years than you...and a lot of them have been on the track...both with this car...and with stock cars, motorcycles and karts.
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Old 03-14-2014, 04:28 AM
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Originally Posted by dannobre
Think about it this way...in an emergency stop...what would you want the person behind you to do...use their brakes....or downshift and wait till the car slows down from engine braking?
Both. Modern RWD street cars stop best with the full benefit of engine braking (with proper rev matching). This is because the brake bias is so conservatively far forward (in this car and most others) that it is virtually impossible to lock the rears without engine compression or e-brake.

In other words, the rears are underutilized by the brakes and the engine can improve that situation by being at high revs more of the time.

If you've spent some time in an 80 senior with rear brakes and a 125 shifter with front and rear you'll understand this dynamic.
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Old 03-14-2014, 05:53 AM
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So you think that a kart with rear brakes has anything to do with a modem 4 wheel disc brake car? Especially one with ABS?
Last time I checked the limiting factor for braking efficiency was traction between the tire and the ground...your brakes have more than enough stopping power
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Old 03-14-2014, 06:04 AM
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If you want to compare driving a vehicle with engine braking to one without try comparing a tractor unit with a compression brake to a car. ... then you might understand the difference

( even thought that reference is just as irrelevant as the kart reference to what we were talking about)
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Old 03-14-2014, 11:37 AM
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Originally Posted by dannobre
...the limiting factor for braking efficiency was traction between the tire and the ground...
And with ABS, as you mention, you'd get that at all four corners in an all out jam on the brakes stop.

There was a time, before disc brakes, when engine braking was the way to slow down a race car. There was the celebrated incident when someone asked Nuvolari about braking. His response was to have his mechanics remove the brakes from his car. He went out and set a faster lap than he had been doing before, then said that brakes just slowed you down. That all changed when Jaguar put "spot" brakes on their cars and could go sailing by their competitors at the end of straights. And do that more than once per race.

But for fun and fantasy, there's a lot of satisfaction in going smoothly down the gears as if it was still 1950.

Ken
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Old 03-14-2014, 11:17 PM
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Sorry Dan, you post no age info, so as far as I'm concerned you got your license and 8 at 16 years old from mom and dad or bought it at 70 years old to relive youth...or anywhere between. Your profile shows nothing of the greater years or skill over me. Not to mention I know many elders I would not trust to drive my lawn mower and many kids that would out drive many a weekend racers.

The fact remains , let off the gas in gear you have drag...basic physics. Others throughout the thread have tried to point this out but you will have none of it.

However, as for your question about the emergency breaking...you once again validated one of my posts. To be specific the first one on this thread...see the last sentence. You must really like shoe leather to keep putting that foot in your mouth.

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Old 03-14-2014, 11:29 PM
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Go back and read the thread...
Never said there wasn't drag. ... just that it isn't anywhere near an efficient way to stop..especially in emergency situations.

You can call me all the names You want. .. it won't change that
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Old 03-14-2014, 11:35 PM
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Oh just for fun...I didn't list "smallville" as a local, I used my real area "Iowa". You think there is any chance that I may have driven a tractor in one of the largest farming areas on earth? I've driven those tractors as well as front end loaders, forklifts, tractor trailers and all the fun stuff in the Midwest in all sorts of conditions. Though you'll just dismiss that as well.


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Last edited by Fencig; 03-14-2014 at 11:39 PM.
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Old 03-14-2014, 11:37 PM
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What has a farm tractor got to do with it? Tractor trailer is more likely what you call a semi truck down there. If you knew where Smallville was you would know where I live
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Old 03-14-2014, 11:41 PM
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Originally Posted by dannobre
Go back and read the thread...
Never said there wasn't drag. ... just that it isn't anywhere near an efficient way to stop..especially in emergency situations.

You can call me all the names You want. .. it won't change that
Ohh I pointed out flaws in your arguments, listed ways you were wrong, had a giggle at your attempts to argue things I already covered...but I have not called you names. Should I start?
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Old 03-14-2014, 11:42 PM
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Ahh yes...a fictitious city...say hi to superman for me.
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Old 03-14-2014, 11:49 PM
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And the flaws in your logic are less evident LOL.....no one will rely on engine braking when they need to stop in a hurry...unless they have no brakes

Have fun next time you go to the track. ...
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Old 03-14-2014, 11:50 PM
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Originally Posted by dannobre
If you want to compare driving a vehicle with engine braking to one without try comparing a tractor unit with a compression brake to a car. ... then you might understand the difference

( even thought that reference is just as irrelevant as the kart reference to what we were talking about)
BTW...you brought other vehicles into it...not this post but this one calls out tractors specifically.

You know...if you can't keep the thread straight I can send you the cliff notes.
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Old 03-14-2014, 11:51 PM
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Originally Posted by dannobre
And the flaws in your logic are less evident
Key words right there...

Last edited by Fencig; 03-14-2014 at 11:54 PM.
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Old 03-15-2014, 12:06 AM
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Originally Posted by Fencig
Key words right there...

Sarcasm escapes you?


Along with reading comprehension and basic spelling and grammar.......


Maybe try and argue the tire grip comment i made...thats physics
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Old 03-15-2014, 12:17 AM
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You are the one letting plain text try to convey emotion. You are also as guilty (if not worse) on the grammar as I. However, calling that out is just deflection tactics. I see it all the time here. Businesses, religions, politicians all use it to scam and change perspectives. Stick to facts. Or you can just accept that not just I, but others, have called out many flaws in your arguments. In addition to that you've tried to say one thing and back track several times in the thread...even before I read it.

Your argument has been heard and deemed irrelevant.
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