supercharger vs turbo

In the long run im hoping to get either one of these..

Which would need more work done to install? the turbo or superchager?
and what should i expect to pay total cost for everything needed, including installation of everything. (rough guesstimate)

also whats the HP increase i can expect from both

thanks!

My pick would be a turbo. Here's why;

Turbo:

Since the turbo is driven off the exhaust it takes no power away from the engine. Also the turbo is only working when you mash the gas so you can maintain good gas mileage while just cruisin’. The only downside is the turbo lag. But that has greatly been reduced over the years.

Super:

Belt driven so the power is instant. But there are two downsides. Since it is always running, it is always using gas. Bye bye good gas mileage. It also required power to run the Super so you don't get as much power.

To me the turbo has been and always will be the better choice. Besides you aren't realty seeing you engines real power until about 3500+ RPM at least. By then the turbo has already spooled up.

You can't really ask "which will give me more HP"
It all depends on the blower choice, turbo choice, internal motor, etc.

In my opinion, a turbo is a lot more work.
They are more difficult to install, you'll need to redo the exhaust manifolds, oiling system, etc.
They can be a pain in the ASS to set up.
However, a turbo has less power loss due to the fact that it's exhaust gas driven and not gear driven.

If you're looking for ease of install and ease of maintenence, go with the supercharger.
Turbo if you'll looking for more power...
If you're looking

Just to correct a few things said by Polygon, a supercharger is NOT driven all the time.
Only a "Roots Type" blower is producing power at all times.
A "Centrifugal" blower (which looks like a turbo) takes time to "spool" as well, but is not nearly as "laggy" as a turbo. The power is more fluid.

Either setup can be made to go equally as fast.

Oh yeah, and a turbo only generates about 5% parasitic loss.
Whereas a S/C will take about 10-15%

Thats a good point, I forgot about that.

ok.......a stupid question to you smart folks in this thread.....but here goes.........i just learned how a turbocharger works........now.......can someone please explain to me how a supercharger works?........what a supercharger does?.........thanks to whoever decides to answer my question.....oh yea......whats the difference between a roots type and centrifugal......<~~~don't know if you spell it like that:confused:

Okay, well a turbo and centrifugal supercharger are in very much the same.
A supercharger works 1/2 like a turbo does. The front of it looks identical to a turbo. However the back doesnt have another impeller blade to get spun by the exhaust gas, it has a gear which is attached to a pulley which is spun by a belt.
This pulley can be made smaller in order to make more boost. Kinda like a boost controller.

A Root's Type blower is bolted directly to the intake manifold and sits atop the engine. A long stem comes out of the front which has a pulley at the end. This pulley is turned by the belt and makes the supercharger build boost.

True... True all the above posts are very true.
Before I wanted to get Supercharger but now I am leaning towards Turbo.
I guess they're pretty much the same but it's just your personal opinion of which one you like. Most people like Turbo but I have some friends that like Supercharger more.:bloated:

i see......so.....the supercharger uses the engine to let me see......"force induct"?......so the turbo uses "free" power to make power....while supercharger uses power to umm.....make power.........ok......i see.....thanks ........

Originally posted by tenzoracerevovii
i see......so.....the supercharger uses the engine to let me see......"force induct"?......so the turbo uses "free" power to make power....while supercharger uses power to umm.....make power.........ok......i see.....thanks ........

Exactly. :)

Originally posted by tenzoracerevovii
i see......so.....the supercharger uses the engine to let me see......"force induct"?......so the turbo uses "free" power to make power....while supercharger uses power to umm.....make power.........ok......i see.....thanks ........
I like your signature.
:bloated:

Actually, the turbo doesn't use "free power" to make power.
It uses the exhaust gas.
Since the exhaust has to pass thru the turbo housing in order to spin the impeller blade, the turbo creates BACKPRESSURE.
Backpressure will actually REDUCE horsepower.
Now, the turbo's only generating a slight amount of backpressure, which only robs about 5%, as opposed to 10-15% created by the S/C, but it still is taking SOME...

Originally posted by Blackbird01
Actually, the turbo doesn't use "free power" to make power.
It uses the exhaust gas.
Since the exhaust has to pass thru the turbo housing in order to spin the impeller blade, the turbo creates BACKPRESSURE.
Backpressure will actually REDUCE horsepower.
Now, the turbo's only generating a slight amount of backpressure, which only robs about 5%, as opposed to 10-15% created by the S/C, but it still is taking SOME...

What!?!?!?
It causes backpressure?
How?
Isn't it Delta Pressure?
:bloated:

Originally posted by Type R

I like your signature.
:bloated:

haha.......no offense if any taken......i dunno if that's proper grammer.....anyways....thanks......i think.....:D

Originally posted by Type R


What!?!?!?
It causes backpressure?
How?
Isn't it Delta Pressure?
:bloated:

here's a little something I wrote on another website:

backpressure RESTRICTS flow...bad, yes...it's very bad

you want the pressure in the exhaust stream to be lower than the pressure in the cylinder...PC-PE=delta P where PC=cylinder pressure; PE=Exhaust pressure NOTE: delta P is simply the change in Pressure, "delta" is a triangular shaped greek letter;
the greater the delta P, the more power results

read this carefully: as a body of gas, such as the exhaust gas, experiences a INCREASE in velocity, the pressure becomes DECREASINGLY smaller as the velocity continues to get greater.

obviously flow at higher RPM will be greater than at lower RPM so there is no universal piping size that will create outrageous amounts of power on both ends of the RPM band, so you have to find the diameter for your application knowing where you want the most power to fall

The larger the exhaust piping, the slower the gases flow, and thus PE becomes greater and delta P becomes less...this is why at low RPM, your car doesn't feel as strong (and not the lack of backpressure), backpressure will only slow the exhaust gas velocity and that means MORE PE and less delta P, which is BAD BAD BAD...this is also why at higher RPM, the the gases can flow better and this results in a greater delta P, which is GOOD GOOD GOOD

So as you can see, the reason for the "lack of pull" at low RPM when increasing the diameter is not because there is less backpressure, it's because there is a slower air flow and more PE. This also why at high RPM, when the flow is greater and the PE is less, you get more power. The only thing backpressure does is slow the exhaust flow down even more and that is why backpressure is bad at any RPM!


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if you understand how a turbo works, you will now see how it will cause an excess of backpressure.