A Visual on what makes up a turbo!

[Ben]

Seeing as how this thread comes up once a week it seems, allow me to help with the answer.

http://www.areadiesel.com/area%20diesel.data/Components/turboflow.gif

http://www.areadiesel.com/area%20diesel.data/Components/turboflo.gif

Complete Turbo (no wastegate):

http://www.ecanfix.com/~mdhamilton/images/turboparts/comtopview.jpg

Center Housing and Rotating Assembly:

The Center Housing and Rotating Assembly where the oil and coolant lines attach. This is where all the bearings and seals are contained and fits between the exhaust and intake assemblies.

http://www.ecanfix.com/~mdhamilton/images/turboparts/chra1.jpg

http://www.ecanfix.com/~mdhamilton/images/turboparts/chra4.jpg

Compressor Side:

http://www.ecanfix.com/~mdhamilton/images/turboparts/compressor3.jpg

http://www.ecanfix.com/~mdhamilton/images/turboparts/compressor2.jpg

Turbine (Exhaust Side):

http://www.ecanfix.com/~mdhamilton/images/turboparts/turbineside2.jpg

http://www.ecanfix.com/~mdhamilton/images/turboparts/turbineendview2.jpg

[Ben]

Compressor Blade:

http://www.ecanfix.com/~mdhamilton/images/turboparts/compressorblade3.jpg

Exhaust Turbine:

The exhaust turbine blade is one piece with the shaft that goes through the center housing assembly and connects to the compressor blade. This turbine blade spins from the exhaust pressure which then spins the compressor blade attached to the other side. This assembly can spin at over 100,000rpms.

http://www.ecanfix.com/~mdhamilton/images/turboparts/turbineside5.jpg

Both:

http://www.ecanfix.com/~mdhamilton/images/turboparts/bladedtogether.jpg

Waste Gate Actuator:

http://www.ecanfix.com/~mdhamilton/images/turboparts/actuator1.jpg

[Ben]

From HowStuffWorks:

Turbochargers are a type of forced induction system. They compress the air flowing into the engine. The advantage of compressing the air is that it lets the engine squeeze more air into a cylinder, and more air means that more fuel can be added. Therefore, you get more power from each explosion in each cylinder. A turbocharged engine produces more power overall than the same engine without the charging. This can significantly improve the power-to-weight ratio for the engine

In order to achieve this boost, the turbocharger uses the exhaust flow from the engine to spin a turbine, which in turn spins an air pump. The turbine in the turbocharger spins at speeds of up to 150,000 rotations per minute (rpm) -- that's about 30 times faster than most car engines can go. And since it is hooked up to the exhaust, the temperatures in the turbine are also very high.


Turbochargers allow an engine to burn more fuel and air by packing more into the existing cylinders. The typical boost provided by a turbocharger is 6 to 8 pounds per square inch (psi). Since normal atmospheric pressure is 14.7 psi at sea level, you can see that you are getting about 50 percent more air into the engine. Therefore, you would expect to get 50 percent more power. It's not perfectly efficient, so you might get a 30- to 40-percent improvement instead.

One cause of the inefficiency comes from the fact that the power to spin the turbine is not free. Having a turbine in the exhaust flow increases the restriction in the exhaust. This means that on the exhaust stroke, the engine has to push against a higher back-pressure. This subtracts a little bit of power from the cylinders that are firing at the same time.

The turbocharger also helps at high altitudes, where the air is less dense. Normal engines will experience reduced power at high altitudes because for each stroke of the piston, the engine will get a smaller mass of air. A turbocharged engine may also have reduced power, but the reduction will be less dramatic because the thinner air is easier for the turbocharger to pump.

Older cars with carburetors automatically increase the fuel rate to match the increased airflow going into the cylinders. Modern cars with fuel injection will also do this to a point. The fuel-injection system relies on oxygen sensors in the exhaust to determine if the air-to-fuel ratio is correct, so these systems will automatically increase the fuel flow if a turbo is added.

If a turbocharger with too much boost is added to a fuel-injected car, the system may not provide enough fuel -- either the software programmed into the controller will not allow it, or the pump and injectors are not capable of supplying it. In this case, other modifications will have to be made to get the maximum benefit from the turbocharger.

[silverEL]

Good Post Ben :thumbsup:

[DJ Lazy]

Originally posted by silverEL
Good Post Ben :thumbsup:

:werd: :thumbsup:

[Dirty_SOHC]

Nice Cut and Paste:zzz:

[Dirty_SOHC]

use the search button Noob...







JK.:rofl:

[Inthered]

Ben, you should sticky this thread on Mechanical/Technical Discussion!

[EK 2.0]

Originally posted by Inthered
Ben, you should sticky this thread on Mechanical/Technical Discussion!


Yeah Ben...and thanks for taking the time to cut and paste all the info for us all both noob's and veterans...

[ZorroAMG]

Hey Ben, what should I get, a supercharger or a turbo? Also how does an intercooler work? Also what does fuck off and do a search mean? I googled that response and came up with a bunch of porn. I am not really sure how turbos and porn are related, and if they are, what kind of porn would be best for my Vtec benz if I want to run supa fast low 18's in the quarter mile.

Thanks people!

Noob.