hey i have noticed almost all aftermarket superchargers owners tend to put on their mustang are vortech centrifugul....is there any reason why so many choose this super charger.....whats wrong with say a kenne bell positive displacement or a roots type or twin screw?? it's just a question that has me going can anyone try to explaing this to me??

 

That's what everyone does, so it is the easiest. Most likely the cheaper way, too.


Robbie

 

It's a personal preferance type of thing, I think.

 

Centrifugal blowers are better for racing applications because they build boost realtive to RPM. A roots style will build boost at lower RPM therefore better for towing and things of that sort. Plus, most people like the sound of a centrifugal blower at idle and quiet under boost as oppsed to the roots that is quiet at idle and noisy under boost. All the decision should be based on is your particular application. Any more question, let me know.....



Adam

 

hey thanx for the replies...my brother has a 2000 lightning..them things are ****ing BADASS...he let me take her for a spin once....really nice... neways....i realize the positive displacement superchargers produce ur power at all rpm ranges......wouldnt that be better than a centrifugul since they dont kick in until u get going hard.....plus i love that whining sound of my bros lightning! and a few more questions.....are the centrifuguls cheaper??? and do the centrifuguls produces more boost than the roots or twin screw? which one wuld b more reliable?? how is the centrifugul powered?? wuld the centrifugul be more efficient since it doesnt cause the engine to drag and the roots and screw type do since they are propelled by the engine on the belt? any ways i no this isnt quite a mustang site but thats my main interest and i hope to own a cobra SVT by next year but the lightning is my favorite especially truck and i wish i culd own one like my bro but that might not happen for a while....anyways sorry for so many questions i may have some more if u reply back and im just curious about all of this stuff like that i always like to learn more and u seem like u no ur stuff half way so thanx

 

Hello, guess your just coming into this performance game?
Both types of blowers are belt driven and consume power from the engine they feed as boost and rpm go up.
Lucky they make more power than they consume.
The Kenne Bell and those types are positive displacements types and do tend to make boost at low rpm for very nice road running response.
The Centrifigal takes air in at it's center and spits it out the outlet in the housing using an impeller running at very high rpm.
You can see this type won't make boost at low rpm because of the way they operate.
You always have the element of people thinking that all other blowers are somehow inferior just because of the greater use of one type.
Don't take this as a rule because the result you want the engine to have dictates the kind of blower to consider.
All "young horses" want to wind the engines so this makes the centrifigal more appealing because they start making good boost at about 3000 rpm depending on the pully size.
This often make them a bit dead on response in the lower throttle ranges as opposed to the Kenne Bell or the other simular types.
When using an auto trans behind a centrifigal, the stock convertor tends to want to come in too early ahead of blower boost.
That makes it more expensive to go the Centrifigal route for top performance when the convertor has to be replaced with one that comes in near where boost begins and lower gears are a help allowing the engine to get there faster yet.
Addmittedly the Kenne Bell is a more expensive inital installation but the stock convertor is more correct for that type blower so the overall cost in the end is nearly the same when all parts are figured for the best combination.
There is another type blower called a Turbo Charger that is exhaust driven and is the same, in general, as a Centrifigal but is the most efficient of the three types

I run a Kenne Bell on a street car and have done several installations of Centrifigals.

Each has it's preferred use so don't listen to anyone telling you any one type has no performance value.
It's what you want from the use of the vehichle that determines which to use.
The larger Kenne Bell 2200 will run boost in the 15 to 20 psi range good enough for over 600 hp.on a street engine.
Hope I gave you some usefull info.

 

Kenne Bell................ Torque is king.

 

Hey Guys… good information. In addition to my F150, I also have a Mustang.

Bluegrass and midnight99 summed it up pretty well. It all depends on your driving style and needs. The Centrifugal blowers are popular for a few reasons. One is they are generally cheaper then Positive displacement type blower. Another is that they build boost in the upper RPM band. Mustangs are very light in the rear and thus, building the power down low makes it difficult to get your tires to hook up. In general, the install is easier as well. The Centrifugal blowers get most the press in the Mustang magazines and can be found in several different configurations. With that said, If I had the money I would get a Kenne Bell. I am more into driving for fun then all out racing. The Kenne Bell will give you more “kick in the pants” off the line, which is about all I do anymore. In addition, for towing… by all means… a positive displacement style blower (like the kenne bell) because it builds torque down low. In the end, it comes down to what you want to do.

 

the cheapest way to big power with no power loss from superchargers is to put a 300 horse nitrous kit in it... fast fun for cheap$$$$...zap!