nofinga911 said:
Wow you have no idea how greatly appreciated your reply is lol...no body knows anything about aviators....it's an 04' I want the speed for street racing....umm as for horsepower im thinking 400-500 higher the better.....money isnt a matter so long as im not getting ripped off...thanks a lot...hope you get back to me soon
Oh I can definately help ya. I have no idea how much you know about performance engines so let me throw a few questions at you once more.
Do you know what the difference is between a centrifugal and twin screw supercharger is?
The twin screw makes the power from way down low in the powerband (1500 rpms) and abuses your engine and drivetrain more, and a centrifugal charger gets its power curve on a little higher in the powerband (3000 rpms) and pulls really well to redline. The twin screw will be more expensive than the centrifugal will be but it will get you off the line quicker.
I did a custom installation of a twin screw charger in my 2003 Ford Explorer
(4.6 liter SOHC engine) and it cost a little less than $10,000 for EVERYTHING said and done with me doing all my own wrenching, fabrication, and R&D. I made 400 rwhp (500 @ crank) on light boost and then detuned it to 360 rwhp (450 @ crank) to save the current tranny till the build.
Now the twin screw charger itself would be about anywhere between $4,800 for a non-intercooled kit (around 450 flywheel hp on stock engine), to $6,400 for the race charger that would be good up past 700 horsepower at the flywheel (would need a fully built race engine + tranny). The additional cost that comprises the rest of the $10,000 is stuff like the new MAS, injectors, Xcal2 tuner, dynotune session, Boost a pump, research and development, fans, different alternator, so on and on and on. This is not counting labor which would be a pretty penny too.
The other option would be a centrifugal charger like a Vortech or something. You could make a pretty respectable amount of power with a centri and still not beat up on your drivetrain as much as the twin screw. It woudl also be much cheaper than the twin screw. The only downfall of this is that while the twin screw charger would get you off the line REAL quick, this would take a little longer to see full boost. As long as your geared for it you should not have much of a problem with either.
Like I said, I went with my big twin screw because I am building a purpose built weekend racetruck to hit at least low 11's in the 1/4 mile. If you dont have quite as high needs as I, then you can save some money in the long run.
It depends on how serious you want to get with your Avi. Luckily you have the same exact heads as the 03/04 Cobra crowd does, so you have a few supercharger systems available to you. It will take some fabbing to install in your truck though.
If your willing to do your own wrenchwork then you can save a lot of money. If your not then as long as your willing to drop the Avi off in Northeast Illinois for a few weeks then I can do it for you for a decent price. Some other shops may do it for you too, but I am willing to bet they have probably never attempted anything such as a custom job like this before.
I hope this helps you in the selection process a little more. Let me know what you intend to do from here on out. I will forewarn you now that if you plan to go big (600-700 horsepower) that your costs will rise dramatically due to having to get a fully build engine and transmission done, along with a revamped fuel system. Not trying to scare ya off, just letting you know it isn't cheap. For example, when my project is said and done I will have over $20,000 under the hood of the X.
Let me know what you want to do.
Rob
