You Spin Me Right Round (Like a Turbo, Baby): The turbine in a typical car turbocharger has to spin incredibly quickly. While your car’s engine revs, at cruise, at around 2,000 rpm, a turbo’s turbine can reach rotational speeds of more than 280,000 rpm.
Is a turbo activated?
a turbocharger is not “activated.” the turbine spins freely with the exhaust gas. As long as the engine is turning, the turbo will turn in kind. Unless the turbocharging system is valved so it can be isolated, but nobody does that! Are auto Turbos on all the time?
How many RPM does a turbo get?
A decent turbo hits full boost at 3k rpm, but it varies depending on the mechanical efficiency of the turbo and how much exhaust is being put out. Three years of Bible school, 40+ years in the working world. Author has 24.4K answers and 9.1M answer views 5 y That will depend on the load on the engine.
How does a turbocharger work?
A turbocharger is a turbine-driven forced induction machine that boosts the efficiency and power output of an internal combustion engine by bringing additional air into the combustion chamber. If it seems a bit complicated to understand how a turbo works, take the cue from the fact that an engine run by a mixture of fuel and air.
How long does it take for a turbo to kick in?
Turbo will not kick in until it reaches a certain RPM, usually between 1200 to 1500 rpm. Exhaust gasses power the Turbo system, and it takes time for the car to generate enough exhaust gas to power the turbo system. The lag is a normal phenomenon for turbocharged engines. However, it is possible to speed up or eliminate the lagging period.
Is low RPM bad for turbo?
Driving at full throttle with the engine at a low RPM because the transmission is in too high a gear is known as lugging your engine. And while it’s bad for naturally aspirated engines, it’s even worse for turbocharged ones.
What is a low rpm turbo?
Low rpm turbo: the peak bhp is a bit lower compared to high rpm turbo (by 15bhp or so from memory), but the peak torque figures are actually higher. The area under the dyno graph is also much flatter meaning you get on the power very early. The car overall pulls much harder across the rev range.
How bad is it to only rev your engine at low rpm?
The rpm you run your engine at, as long as its within reasonable numbers (below the redline) is probably the least contributing factor to abnormal/increased engine wear. Not revving the engine high once in a while is BAD. Engines that only operate in low revs (think granny cars), will run into several problems. First and foremost: carbon buildup.
Do turbocharged engines make big torque at low rpm?
Turbocharged engines make big torque at low rpm, but those two numbers, peak torque and its corresponding rpm, don’t tell the full story, as boost pressure isn’t solely a function of engine speed. A turbocharger’s ability to make boost (and inflate torque) depends on the energy in the exhaust stream that spins its turbine.
Are turboprop engines slower?
Yes, you can call turboprop engines slower, if you talk about their rotor rpm. Turboprop engines, as it means, it has a propeller rotating outside the engine propelling the aircraft forward.
Why can’t turbos rev as high?
It is simply much more expensive to make high reving Turbo petrols. Need much better balanced rotating components, lighter & stronger internals. NA engines may rev to much higher rpms but they aren’t making much torque at those RPMs, high horsepower is simply coming from more revs( hence more bangs per minute).
Why does my Turbo have a lower boost?
The only reason there is lower boost is due to the lack of enough air mass to put the turbo into efficiency range and cause it to pressurize the intake. Rolling downhill, the throttle plate is closed, forcing vacuum, no mass=no boost.
Can a turbo engine boost without a wastegate?
But correct, in that without the larger mass of air that an engine without a wastegate will not see any boost (example of a non-wastegate equipped turbo engine is used in the Piper Turbo Arrow. The throttle is pushed forward a little at a time and the manifold pressure watched.
Is a high compression engine bad?
It's not bad if you know what you're doing and reinforce the whole engine, it poses a big engineering challenge to get a hp increase realiably with a high compression engine, since you are esscentially acting with a lower margin of error. Something went wrong.
Does a turbo always run?
The beauty of a turbocharger is it is not always on, generally only being activated above certain engine speeds, and increasing how hard it works as engine revs build.
Can you put a turbo in a car?
As above, a car that is built to include the use of a turbocharger will be the best option if you’re looking for boost. However, if you do wish to install a turbo in your car without upgrading the other aspects of the vehicle, then you will put more strain on the engine and potentially break it. What kind of gas do I use in a turbocharged car?
How does a turbo charged diesel engine work?
Turbo charged diesel’s rely on the turbocharger itself as a form of intake air regulation. and as DXM pointed out, he is right. Open throttle => more air moved through the engine => more exhaust => more boost. To be technically correct, opening the throttle in a standard gasoline engine allows more air into the system.
What happens if you put more fuel in a turbo engine?
With more fuel, the explosion is bigger, forcing the piston down faster and therefore doing more work, or creating more power. As the exhaust gas leaves the engine via the exhaust manifold, that turbo compressor spins more again, restarting the whole process.
How fast does a turbocharger run?
The turbine in the turbocharger usually spins at speeds between 80,000 and 200,000 rotations per minute (rpm) — that’s up to 30 times faster than most car engines can go. And since it is hooked up to the exhaust, the turbine also runs at very high temperatures.
Is idling a turbo bad?
While there are a lot of valid arguments supporting the cause of idling, even the naysayers will agree you’ve got nothing to lose by practicing the idling rule. Abusing your turbocharger can affect its longevity. With time, the turbo will become less effective.
Does idling a car damage your engine?
Idling your car for 10 minutes every now and then won’t damage your engine. But if you do it every day, it can wear out your engine in the long run. You save both engine, fuel and the environment by turning off the engine instead of idling.
How long does it take for a turbo to idle?
At the end of the day, it’s only a matter of 30 seconds. While there are a lot of valid arguments supporting the cause of idling, even the naysayers will agree you’ve got nothing to lose by practicing the idling rule. Abusing your turbocharger can affect its longevity. With time, the turbo will become less effective.
Is it safe to drive with a blown turbocharger?
At the end of the article, you will find out if it’s safe to drive with a blown turbocharger. The most common symptoms of a bad turbocharger are low engine performance, blue smoke from the exhaust, and a burning oil smell. You may also notice reduced fuel economy and a check engine light on your car’s dashboard.
What happens if you abuse your turbocharger?
Abusing your turbocharger can affect its longevity. With time, the turbo will become less effective. Take care of your turbo so that it gives your engine adequate boost and thus, an enjoyable driving experience for years to come.
Why should you allow a turbo to idle?
Idling the engine cools the turbo because it circulates the oil, yet does not make the turbo “work.” The amount of cooling it needs is directly related to the way you just finished driving it. When you drive it gently around town, 15 seconds should be more than adequate. When you drive the car hard ie.
Should I idle and cool down my turbocharged engine?
You should idle and cool down your turbocharged engine because the oil in the bearing shaft can easily get burnt, and the residue can cause the turbo engine to fail. The other parts of the engine could also get damaged because the engine did not cool properly before the switch off.
What happens to your engine when you idle it?
Once your vehicle is idle, everything in the engine keeps running but not as much as it will when you move or accelerate. The turbo’s activity has also reduced drastically, which means less heat is generated. Now, the engine parts can easily cool down while still running. In addition, the oil keeps moving and cannot be easily burnt.
What can cause a turbo to fail?
There’s also the issue of heat soak from exhaust gas. The worst thing you can do to your turbo is switch the engine off immediately after a hard run. “The number one cause of turbo failure is oil “coking”.
Do turbo engines get hot?
Usually, turbo engines do not get too hot that it requires you to cool them down intentionally. However, this does not dispute that the turbocharged engine can get hot, especially when used under intense conditions. To be safe, you should idle your turbo engine for at least 15 seconds, even when used under usual driving conditions.
Does turbo only kick in at high rpm?
Yes it does. You see the turbo is a “passive” device. It just turns when exhaust gases pass through & as the rpm increases, so does the compression. Thus the turbo works regardless of gear.
How does a turbo kick in?
When your engine revs at the boost threshold, turbo kicks in and you will feel the instant boost as soon as you hit down the paddle. Spinning at the optimum RPM the turbo creates a boost (forced positive pressure) and the boost is what we call “TURBO kicks in”.
Do turbos work at idle?
Answer (1 of 7): Simple answer is yes. Turbos work at idle and at a predetermined rpm, they produce enough air flow to overcome the vacuum of the engine, thus producing ‘boost’. This is usually referd to as spooling up the turbo. A turbo is an addition to automobiles to increase the horsepower o…
How do you boost a turbo?
To make a boost, the engine should be running at boost threshold RPM where the turbo can spin with full potential. Q: What Causes Excessive Turbo Lag ?
Why does my turbo kick in late?
When the turbo kicks in late, it’s due to a common issue known as turbo lag. Turbo lag is a very common problem that every turbo charge car will face. Turbos take time to spool and create boost, and the delay between throttle and boost is called turbo lag.
What does turbo lag feel like?
What does turbo lag feel like? If you put your foot down on the accelerator of a turbocharged vehicle, you may experience a noticeable gap before your car begins to accelerate quickly. When the turbo kicks in, you’ll feel a significant jump in acceleration.
Do turbocharged cars lag a lot?
Yes. Turbo lag is something all turbocharged cars have, although it is not equally noticeable among them. As a rule of thumb, gasoline engines and those with big turbos will lag more than smaller turbochargers, which will have less boost at higher speeds.
What is the difference between turbo lag and turbo spool?
Turbo spool is the time it takes from when the turbo starts building pressure until it reaches full pressure. It is therefore very different compared to the turbo lag – turbo lag is when you press the accelerator pedal until it starts creating power. Also, turbo spool is determined by the size of the engine and the turbocharger.
How do you get rid of turbo lag?
The larger the parts, the longer the turbo typically takes to spool, and the more turbo lag there will be. The most common way engineers get around turbo lag is simply to use the lightest components possible, as less inertia means less lag. A more complex way is to pair a large turbo with a smaller one, or with a supercharger.
What happens if a turbo is spinning?
As long as the engine is running, exhaust gases will be flowing and the turbo will be spinning. However, this doesn’t mean it’s generating extra power all the time, as a turbo has to be spinning at a certain speed before it can create positive intake pressure.
