This is a FYI thread so New Members who are interested in going Turbo can at least learn how a turbo works before they go turbo. I did not make this write up. This write up is By: Toma Kicovic, B.Sc. from www.members.tripod.com/tomak3/page10.html. The actual page compares Turbo Chargers vs. Superchargers. In this thread I Included only on how the Turbo works to not confuse the New Member Reading this thread with too much information. This is probably the easiest and best write up that anyone can understand with great picture demonstrations! However in this thread Tripod.com didnt allow me to use the picture so I am using a picture from http://www.btnturbo.com.

 

A turbocharger's compressor section is connected directly by a shaft to the turbine housing. The turbine is the portion of the turbo that takes exhaust energy (heat and pressure) and converts it to motion. Since the turbine and the compressor are connected by a shaft, the compressor spins at the same rate as the turbine.

Turbo's come up to speed very quickly (almost instantly if properly sized), and once a desired boost level is reached, excess exhaust gas is bypassed around the turbine by a 'waste gate'. What this does is limit the speed of the compressor (and turbine) and therefore boost. The point where the waste gate opens can be set so as to produce a desired rpm and boost level. With a turbo then, as soon as there is sufficient exhaust flow, the turbine will come to speed, and you can have full boost within a fraction of a second. A properly sized turbo can achieve its maximum boost setting at almost any rpm you desire, on a 6000rpm motor, this can be as low as about 2500rpm.

 

A turbo's power comes from energy contained in the exhaust gasses. A turbo is not entirely 'free' horsepower as some additional back pressure is created by the turbine, but a turbo derives a very large portion of its energy from heat. This is shown by the fact that exhaust gas temperature can drop by as much as 300 degrees Fahrenheit as it leaves the turbine housing. In essence the power 'robbed' by the extra back pressure is very small (also due to other more 'complicated' factors like critical exhaust flow, but we wont get into that here).

What is more important for a street car is 'power under the curve' meaning the average horsepower produced. This is where the turbo really shines since you can have full boost at as little as 2500 rpm! This will make the turbo car feel like it has 50% more cubic inches (or more). The difference in torque at low rpm's can be as much as 100 lb ft in favor of the turbo due to the additional available boost....now that's performance!

 

reserved.

 

 

should i get turbo ? this sounds fun

 

^^ no, turbo's blow your motor because the overheat your headgasket

 

I just removed mine when I went turbo. Gives it higher compression. It makes the piston rings work a little harder, but they can take it

 

Ya, all you have to do is lap the heads to the block and you don't need a gasket.

 

is it worth it for a dd im still young so i got that need for speed :O

 

completely. but first go to a speed shot and ask them to remove your head gasket and lap (that means make shiny smooth) your cylinder head for higher compression.

maybe even the dealership would do it. dont know on that one, just ask.

 

I always jsut welded the heads the the block... lol

 

When I read this, i was expecting a photoshop...something with a reference to 'A Night at the Roxbury'...