[Laser red Bread]

Which supercharger would be best recommended for my GT? The Kenne Bell or the Vortech? Leaning towards the Kenne Bell but I want to keep my options open. Any suggestions. My setup is pretty much stock. Just some JBA shorties and a JBA h-pipe to match.

[KingChronic]

for gods sake search back a few pages, this topic only gets covered about 10 times a week.

but the vortech will make more power, be more efficient, and easier on the motor. also better for a DD.

[Doc8224]

If thats the only 2 choices then definatly the KB. If you would expand your options a little I would say procharger FTW!!

[KingChronic]

Originally Posted by Doc8224 If thats the only 2 choices then definatly the KB. If you would expand your options a little I would say procharger FTW!!

definently +1 on the procharger, the new paxtons are also damn good blowers.

[pa.ulB]

procharger, vortech,paxton, kb, wipple<all will get you lots of hp

[Doc8224]

Although paxton has re-released their self contained units again, but they still may not be as good as a procharger. How you oil it don't make or break how good it is.

[Goblin]

Originally Posted by KingChronic for gods sake search back a few pages, this topic only gets covered about 10 times a week. but the vortech will make more power, be more efficient, and easier on the motor. also better for a DD.

I dont understand. Why is the Vortech more efficient? When you say effiency.. your speaking in terms of? Im curious.

[KingChronic]

Originally Posted by Goblin I dont understand. Why is the Vortech more efficient? When you say effiency.. your speaking in terms of? Im curious.

the centri's blowers make less heat than a positive displacement lower, which means they are more efficient.

[ModMustang97GT]

Its not more efficient, its just differant. The way a twin screw roots type blower like a Kenne Bell makes power is differant from a vortech or paxton. The Vortech and paxton have a linear boost and power curve. They make more power the higher your RPM. But at low RPM, they make very little torque due to their design. The roots type (KB) builds boost much lower in the RPM than the Vortech, it will make slightly less power at peak than the Centrifugal Supercharger (Paxton\Vortech) but it makes a lot more torque through out the spectrum.

Check out this article for some ideas.
Ford Modular Motor Forced Induction Dyno Comparison - Muscle Mustangs & Fast Fords Magazine

[Goblin]

Originally Posted by KingChronic the centri's blowers make less heat than a positive displacement lower, which means they are more efficient.

Okay, so in terms of heat or tempurature, your saying the Vortech is more efficient? That seems odd to me. Anytime you compress air, you build heat.. if both superchargers move similar amounts of air, and have the ability to compress the air to within a certain level, the heat production will be around the same. The benefit of some superchargers, is an intercooler (you know that already) The KBs are intercooled. Your telling me that a non-intercooled Vortech(if thats the system he decided to you use) is more efficient with heat production, than an intercooled KB?

[ModMustang97GT]

Because of the location of the Vortech compared to the KB, the heat will be greater at the location of the KB than the Vortech. But what you are not taking in to account is that the air from the KB goes straight in to the engine, rather than having to pass through your intake manifold and the piping to the TB. The only really important differance between the two is their power curves, and what type suites you.

[Goblin]

Location means nothing when your using an intercooler. Why is the temp going to be higher with the KB? Because the air is being squeezed just before the intake port? It passes through an intercooler before it ever makes it to the port. Those air-to-water ICs do a rather nice job of bring down intake temps. Even besides that, the Vortech will squeeze the air just the same, and produce the same heat at the compressor. Without an intercooler, the intake temp will be very similar.

[ModMustang97GT]

On a side note, Vortech's can be intercooled also.

[Goblin]

Originally Posted by ModMustang97GT On a side note, Vortech's can be intercooled also.

Yes, i know.

[KingChronic]

Originally Posted by Goblin Location means nothing when your using an intercooler. Why is the temp going to be higher with the KB? Because the air is being squeezed just before the intake port? It passes through an intercooler before it ever makes it to the port. Those air-to-water ICs do a rather nice job of bring down intake temps. Even besides that, the Vortech will squeeze the air just the same, and produce the same heat at the compressor. Without an intercooler, the intake temp will be very similar.

a properly sized centri that can move more air than a twin screw is goign to make less heat. and a vortech V2 is capably of more airflow than a 2.1L KB, therfor is going to make less heat per PSI.

also, the vortech;s can be run with the paxton air to air IC system which is even more efficient, and less restrictive than the vortech aftercooler system.

[Doc8224]

The major heat differnces are the fact that the top mounts use a heat exchanger and that heat soaks a little and they get engine heat soak. The centri's also use an impeller to compress the air and this is more efficent than the screws or roots. But your best bet is still a procharger IMO.

[Eagle2000GT]

Originally Posted by KingChronic definently +1 on the procharger, the new paxtons are also damn good blowers.

+2 on the Procharger. But the KB is really good as well. Research twin-screw superchargers vs. centrifical superchargers. Their boost curves are very different.

Considerations: Is your car a daily driver? Will anyone else other than you drive the car? Will you be driving the car in the rain or snow?

A twin-screw reaches maximum boost at somewhere around 2,200 rpm. It has a lot of low end torque and some have said it hard to handle in bad weather. The centrifical supercharger builds boost gradually. Mine is 1.8 lbs at 2500 rpm and 8.9 lbls at 6,000. My wife seldoms gets above 2500 rpm and I keep it below that in bad weather so the car behaves pretty much stock. When I want the power its there.

[KingChronic]

Originally Posted by Doc8224 The major heat differnces are the fact that the top mounts use a heat exchanger and that heat soaks a little and they get engine heat soak. The centri's also use an impeller to compress the air and this is more efficent than the screws or roots. But your best bet is still a procharger IMO.

there are many reports of that vortech aftercooler becoming inneficient after about 15PSI. we're going to be pulling the one off my friends fully built T-trim 99 cobra and doing the paxton air to air setup very soon.

[SWEET2KSTANG]

i agree to expand options. you want a blower that takes no power to make power!!! i vote for the e-chargers!!! i vote kb, between the 2. but i also recommend looking into procharger.

[Smoothgrandmama]

Procharger is still the leader in FI