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View Full Version : how EXACTLY does a turbo work??



89accordboi
09-25-2003, 03:57 PM
i want to learn about turbos at a high level... right now all i know is:
a turbocharger uses exhaust gases to spin this turbine which basically compresses air to allow more into the cylinders, which allows more fuel = bigger explosion in the power stroke = more power. and i know that say for instance a turbo setting at 8psi will add an extra 8 lbs per square inch of air into the cylinder.

anyways i just wanted someone to explain it to me in depth.
thanks

2old_honda
09-25-2003, 07:01 PM
www.howstuffworks.com

zero.counter
09-25-2003, 07:10 PM
And buy these books as a supplement
http://www.bellengineering.net/maximumboost.html

MrBen
09-25-2003, 07:28 PM
http://www.turbotechnics.com/turbo/turbowork.htm

89accordboi
09-26-2003, 09:27 AM
lazy bums. or wait maybe im the lazy one :D
thanks

88LXiHB
09-26-2003, 09:31 AM
http://www.gcdr.net/talk/viewforum.php?f=10

BootMachine
09-26-2003, 10:37 AM
exhaust gas spins a turbine at a very high speed (160 000 rpm) which is connected to a shaft that spins a compressor wheel (looks just like the exhaust turbine) which sucks and pushes air into the engine at an incredable volume!

To keep the tubo from pumping out too much air (boost) and a) burning the turbo or b) over boosting the engine and blowing it there is something called a waistegate. It is controlled by intake pressure. When the pressure gets too high the gate opens allowing the exhaust to flow PAST the turbine and straight out the pipe.

When you take your foot off the gas the butteryfly slams shut trapping air pressure in the intake pipe (between the butteryfly valve and the turbo). This can cause many things to happen including a shock wave that travels back through the pipe and can shatter a compressor wheel. To let this pressure escape you use a BLOW OFF VALVE. When you let off the gas vaccuum pressure returns to max, activates the BOV and lets the extra pressure escape making the PISST sound.

vroooomm...pissst....vroooomm...pissst

...and thats basically how a turbo works.

Go to howstuffworks web site and read what they have....VERY informative and easy to understand!

now.....you get to learn about Fuel Managment, Bottom end construction, ignition managment, turbo managment and the list goes on!