Question, can anybody tell me what happens if i'm going top speed on 3rd gear and then release the gas without touching the clutch or the shifter. Will the car maintain the minimum speed for 3rd gear or will it continuously decrease speed like an automatic transmission.
2007-05-08 17:11:08 · 14 answers · asked by yumyumgimmesum 2 in Cars & Transportation ➔ Safety
decrease until it settles into a speed right about the sweet spot of the clutch unless you hit a hill.
2007-05-08 17:13:35 · answer #1 · answered by hodgetts21 5 · 0⤊ 1⤋
The answer depends on the engine size and type. A smaller engine, like the minimalist 3 cylinder in my Geo Metro on level ground, will slow and eventually slow enough for the engine to have ignition problems and die. 3 cylinders are simply not enough power at idle speed to overcome the rolling friction of the Geo. My Ford F-250 pickup truck with a big block 390 V-8, will run on at about 12 MPH, though it jerks a bit from occasional misfires due to the low RPM. So, it depends on how much power your engine can produce at idle speed under load. My 390 develops enough to keep going, my Metro does not. My big block V-8 gets 14 MPG loaded or not on really good day, my Metro gets 50 MPG around town, 55 on the highway. An automatic down shifts gears because of the reduction in speed. That is what an automatic is designed to DO, match the gearing to the power requirements and speed. The manual stays in the same gear. If you could force the automatic to stay in 3rd gear, the same effect as the manual would happen to you as happens to my F-250 and my Geo. Initially, your rate of deceleration will be high as the engine absorbs the power from the back wheels turning faster than it wants to go. But as your speed decreases, the effect of engine braking will lessen until the power it produces is again providing power to the driving wheels. The key is power able to be produced at idle versus rolling friction. It is a power balancing act.
2007-05-08 17:33:48 · answer #2 · answered by rowlfe 7 · 0⤊ 1⤋
This question is hard to answer myself hate some auto's as they are a sit back and wait for power but,after owning and driving a good few sports auto's they are nothing like other auto's just touch the pedal and your away at high speeds and with overdrive and power buttons to allow redline changes and rev hold buttons to allow you to choose at which rev you want the car to change gear all gives alot more fun than the sit back and go experience. So to be fair you have to drive a sports autobox to a low cc car with auto setup. And not forgetting about triptronic and setups like the new Nissan GT-R which has a type of different auto set-up. So yes auto's can be boring but unless you have a big bhp track car then most stick cars now seem boring to me and feel i have to keep changing up and down just to get some power.
2016-05-18 22:18:11 · answer #3 · answered by Anonymous · 0⤊ 0⤋
It's called engine brakeing - it will slow the car down to a reasonable speed to be travelling at in that gear. How dramatic the reduction in speed is depends on the speed of the engine at the beginning.
2007-05-08 23:56:54 · answer #4 · answered by Anonymous · 0⤊ 1⤋
Your car will decelerate, and you will notice considerable engine braking action due to compression.
It may continue to chug along at minimum speed if you are on level ground, but this is a little hard on the engine and I don't recommend it.
Variations can result depending on condition of engine and drive train.
2007-05-08 17:21:06 · answer #5 · answered by Warren D 7 · 1⤊ 0⤋
Basic physics here... the car will decrease its speed gradually, unless you're going down a hill or up a hill.
2007-05-08 17:17:53 · answer #6 · answered by Porterhouse 5 · 1⤊ 0⤋
uhmm well as the revs get closer to something reasonable (something like 2500 RPM) the speed at which the car decelerates will slow.
Meaning you will drop 10 mph between 6k and 5k rpm, then drop 7 mph between 5k and 4k rpm then drop 5mph between 4k and 3k rpm and etc... (these numbers are just used as examples)
as the car slows more, and drops below 2k down to 1k rpm the car will probably start to jerk as the speeds dip below what you should be driving at in 3rd gear.
any time you take you foot off the gas it will continue to decrease in speed.... unless you have cruise control, which i doubt in a standard.
2007-05-08 17:16:44 · answer #7 · answered by Anonymous · 0⤊ 1⤋
Your speed will decrease, doesn't matter automatic or manual. It will decrease!
2007-05-08 17:14:37 · answer #8 · answered by Sandstorm319 1 · 1⤊ 0⤋
It will decrease as the car loses it's momentum
2007-05-08 17:13:45 · answer #9 · answered by That_ blue_ eyed_ Irish_ lass 6 · 0⤊ 1⤋
Decrease all the way
2007-05-08 17:14:38 · answer #10 · answered by Anonymous · 0⤊ 1⤋