Fast Acceleration Will Save You Fuel !?

I always wondered whether or not accelerating quickly can save fuel. Here is the answer (Well kind of)

[khalidacosta]

Each engine has a Brake Specific Fuel Consumption map, in which the engine is most efficient at certain RPM's at certain engine loads. You should aim to attune your driving to that, too slow and the friction lowers fuel economy, too fast and the engine friction increases too much as well.

[Spectralgem]

Here's my anecdote. I drove a 1998 Saturn Sl1, I spent a couple months running an experiment with limiting my RPM, and therefore my acceleration, to speed. I limited my RPM to 1600, 2000, 2500, and 3000. The 1600 rpm run was the one I consumed the most fuel. The engine speed to fuel economy ratio seems to have a bathtub curve, just like speed does for fuel efficiency.

[Habanguna]

Just found your channel. Great content, keep up the good work

[ognjenvesic]

I really woundt worry about fuel consumption on a 1.2-1.5l engine.

[Mhai_FPS]

This guy is so underatted he needs more subs and views for his content fr fr :3

[joecopeland]

If you have a manual transmission or an automated manual and use lots of throttle input but short shift the hell out of it, you will have the most effecient acceleration. The reason is that fuels burn more completely at higher pressure, while using less combustion cycles to get up to speed.

After that, shift into the highest gear possible to maintain speed.

But be warned, overdoing it can cause low speed pre ignition. (Knocking or pinging)

[stonix]

First of all, you have to differntiate between diesel and gasoline engines, because gasoline engines always drive "same mixture" (kind of, +/-10% depending on load), but have a throttle valve for power regulation.

I tuned my car by myself with a completely free programmable open-source ECM, and the correct tables that came out shocked me. Even if i am completely decelerating, the engine gets 60-70% volume/fuel. At a power of 0hp. That means, that all of the power these 60-70% volume/fuel could generate will be completely consumed by sucking air from the closed throttle valve.

Long story short: It is efficient to accelerate fast, with WOT, in low gears, but then roll in very high gears.
The bigger problem is, that if youre in this mode, like in this video, you are driving like a heck. Unneccesary acceleration, often braking, too high speeds, and so

[tiagorocha]

I think it’s not very deep. Accelerating faster means your car will suffer from wind resistance/drag earlier, inducing losses. It also means that this kind of driving is not anticipatory, meaning you’ll have to brake more often, wasting energy. Your principle is correct (as engine efficiency) but it doesn’t work in the driving world

[kamistake]

what a cool concept to test! new sub! keep it up my guy !

[Menon]

lol the chris fix cameo in the beginning

[Scarecroweb]

The best fuel economy is to stay withoin 1 to 2k rpm period dont push the gaspedal further than whats needed, you are wasting fuel then. also remember to kiss the red line once a week to clean the engine :D another thing city driving is worst for economy you should aswell use the start/stop system in the cities if available

[kaliikleja]

Fast acceleration takes more fuel, but you must make more tests with low traffic and no red and green lights.
You must make 5 tests each at least and in same traffic conditions.
If you like to drive gas pedal to the metal, then deal with higher fuel consumption.

Fast acceleration needs a lot's of energy, this is the reason why 5 second car must be very powerful.

[morturiom]

3:18 that is some amazing chewie impression

[SuperKiko]

I have the same car. Honda jazz. Nice video

[pedroribeiro]

nice video man keep the nice content (refering other videos too)

[tilmanr.]

Mit meinem ersten Auto (Honda Accord Type R) habe ich dauerhaft Teil 2 des Experiments durchgeführt. Spaß war keine Frage, aber es war definitiv nicht sparsam (20l/100km) :D

[destyrian]

I drive an electric car so it's really simple: the faster I drive, the worse the efficiency. 10 miles charge will be gone in 2 miles. Don't drive electric, folks.

[DimsWorld]

Your route looks like a weird toe, but thanks for this practical approach

[dawidwsmole]

Next video see if you can save fuel by not using the break ;D

Nice video mate, quite funny :P

[robinhil]

in my head thats pretty obv pedal to the metal just means faster engine rotation so i would ATLEAST think it uses the same amount of fuel but who am i nice video man !