turbo vs supercharger

it seems to me that everyone has mixed feeling about either getting a super or turbo and everyone has their one opinion but whats the big difference between both, whats the pros...cons of both?



and were would i want to go to get some 3.73 gears? are they good for everyday driving or is there anything else thats better?

Search is your friend

For a V6 -turbo would do pretty good, you can smoke a stock GT if done right. For a V8 a supercharger is a better idea.

Turbo kicks in when u biuld up enough pressure when stepping on it, S/c works all the time.

Luxrus u are partly correct about sc's working all the time.
there are two major forms of supercharging
-Centifurge is basicly a belt driven turbo the crank spins a belt which inturn spins the impealer causeing it to make boost.
-Roots style there is two forms of roots style root and twin screw design(twin screw is alittle different but is still similar) this is mounted on top of the engine and is drivin by a belt also to create boost.
A roots style creates a linear power curve pretty much all the way across from 2000 to lets say 6000. this basicly means that it achieves max boost very early and stays there all the way though.
which a centifurge builds boost and power much like a turbo doesnt create as much low end power as a roots but has a high top end.
-turbo exhaust gas spins the impeler which makes boost in laymans terms(basic).
Now in my opinion turbo is the best bascily period it is the must effiecnet design if its a 6 or a 8 with the contorl and technolioges with have now adays turbo lag basicly doesnt even exsist. it creats much more power per pound of boost. around 100 plus more hp at 15 psi then a kenne bell(twin screw the daddy of roots style). and u look at the power curve of a turbo agaisnt the centifurge and the turbo takes off almost verictaly in power while the centifurge builds power alittle slower.( i didnt know how to say this) there is downfalls to turbos they are much more expensive about a grand to 2 grand harder to install and need to be tuned. its all of whats in ur buget and what do u want. try seaching turbo vs supercharger and i bet you will come up with atleast 50 threads with great info.

causeing it to make boost.
-Roots style there is two forms of roots style root and twin screw design(twin screw is alittle different but is still similar) this is mounted on top of the engine and is drivin by a belt also to create boost.

A roots style creates a linear power curve pretty much all the way across from 2000 to lets say 6000. this basicly means that it achieves max boost very early and stays there all the way though.
which a centifurge builds boost and power much like a turbo doesnt create as much low end power as a roots but has a high top end.
-turbo exhaust gas spins the impeler which makes boost in laymans terms(basic).
Now in my opinion turbo is the best bascily period it is the must effiecnet design if its a 6 or a 8 with the contorl and technolioges with have now adays turbo lag basicly doesnt even exsist. it creats much more power per pound of boost. around 100 plus more hp at 15 psi then a kenne bell(twin screw the daddy of roots style). and u look at the power curve of a turbo agaisnt the centifurge and the turbo takes off almost verictaly in power while the centifurge builds power alittle slower.( i didnt know how to say this) there is downfalls to turbos they are much more expensive about a grand to 2 grand harder to install and need to be tuned. its all of whats in ur buget and what do u want. try seaching turbo vs supercharger and i bet you will come up with atleast 50 threads with great info.[/QUOTE]



Not quite accurate....... there are Roots, Twin-screw and Centrifugal.

The roots superchargers are actually blowers, it moves air from one side to another, and it does not compress air, the compression is actually done in the intake manifold. It is a fixed displacement blower and the blade touch each other.

Twin screw's superchargers are similar to the roots but they actually compress air as the air moves down the impellers and out the exit port. It is a fixed displament supercharger. ALso the rotors in a twin screw do not make contact with each other unlike a roots blower. It is also pretty close to being as thermally efficient as the centrifugal superchargers.

Centrifugal superchargers are basically a high speed fan. It is not a positive displacement blower, because it does not force air down a path. The impeller or fan, which is the opening of the centrifugal blower catches the air. As the air is pulled into the blower and gets past the top of the fan blades, the centrifugal force created by rotational inertia makes the air move outward from the center of the impeller to the outter edge of the blades. This is where the venturi catches the air, speeds the velocity of the air up and directs it to a scroll. The scroll is the tubing that gets wider as it goes around the impeller. As it gets wider, the air slows down, and that creates the pressure. With the centrifugal blowers, the air can pass thru it while not rotating. It does not have a sealed chamber, and that's why it is not a positive displacement supercharger. They also need high rpms, in order to catch more air and increase pressure. The twin screw and roots don't need high rpms.

you know how you can get a boost controller with a turbo and crank it up when u wanna race and down for daily driving? well can you do anything like that with a Centrifugal supercharger?

you know how you can get a boost controller with a turbo and crank it up when u wanna race and down for daily driving? well can you do anything like that with a Centrifugal supercharger?

Get under the hood and change pullies.

Get under the hood and change pullies.

Yep, I have 3. One for 8lbs, 11lbs, and 13lbs.

so for efficient power a twin screw supercharger is better than a turbo?

so for efficient power a twin screw supercharger is better than a turbo?

No.

so for efficient power a twin screw supercharger is better than a turbo?

Turbo's run off exhaust gasses, so they don't use horsepower to make horsepower.

ALL of the blowers are belt driven, so they use engine power to turn and make power.


Turbo's and centrifugal blowers have alot of tubing, so they appear bulky. But, polished or chromed and they look damn good

the roots and twin screw blowers sit where the upper intake would normally be, so they are compact and don't take up much room in the engine bay.

as said the turbo doesnt "rob" power from the crank it takes 900 hp to spin a top fuel drag car's blower. turbos are just more effiecent and powerful.

Turbo's run off exhaust gasses, so they don't use horsepower to make horsepower.



They don't use as much power ;)

Superchargers are in the 65%-80% efficiency range, while turbos are in the 80%-90% range, number off the top of my head, but in the ball park.

Turbo's run off exhaust gasses, so they don't use horsepower to make horsepower.

ALL of the blowers are belt driven, so they use engine power to turn and make power.


Turbo's and centrifugal blowers have alot of tubing, so they appear bulky. But, polished or chromed and they look damn good

the roots and twin screw blowers sit where the upper intake would normally be, so they are compact and don't take up much room in the engine bay.

Well i knew that. I was just asking which one would be better to make more power in case i didnt know something about superchargers. Im guessing the turbo is much better.

Well i knew that. I was just asking which one would be better to make more power in case i didnt know something about superchargers. Im guessing the turbo is much better.

Its not that they are better, both will provide more power.

Turbos are considerable harder to install, or I should say time consuming. If you don't mind the extra time, its the way to go.

Its not that they are better, both will provide more power.

Turbos are considerable harder to install, or I should say time consuming. If you don't mind the extra time, its the way to go.


Yup that is true, much harder to install.... and bulky in comparison to other things.

They don't use as much power ;)

Superchargers are in the 65%-80% efficiency range, while turbos are in the 80%-90% range, number off the top of my head, but in the ball park.


Yes again your correct, but I thought the turbos was now up in the 85%-95% range now...

if I could only afford down time and money for a Twin Turbo setup..... and if there was a street legal and CARB legal kit for us CA guys...

Here is a couple of links to compare some power figures

A turbo Mustang
http://www.turbo-kits.com/mustang_turbo_kits.html

A supercharged Mustang
http://www.superchargersonline.com/product_detail.asp?partnumber=PAX1001810-1&tabactive=5

Also there are several other chargers on that site. The one I listed is a Paxton Dyno test.