SUPERCHARGER questions

[tony1307]

Hey guys... I need to pick your brains. Who knows about, or has experience with superchargers?

I am considering puitting one on a 90 Mustang 5.0 HO.
I am admittedly clueless about this right now, and I want to know if one brand is significantly better, stronger, or just easier to work with then another. And, what other mods witll I be needing to do to it?

I have looked at a Jet-Chip, Throttle Body, MAF tube, underdrive pullies, the pro 5.0 short throw shifter, and BBK headers, x-pipe and cat-back system. All of that is around 2000 bucks. I can get a supercharger for 1500 and up.

options?
:help:


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[colohoopty]

I'll be dead honest and tell you right now............I don't have a clue about what'd be best. However, I was researching the net for a similiar project Mustang, and I came across Superchargers.com. They had all kinds of toys, specifically a Saleen that was bolt-on. You might want to check it out. That is of course, if the site is the same.

[Burg460]

Let me put my $.02 cents in here being I also have a 5.0 Mustang...

There are 2 types of superchargers. One is a roots style supercharger and that is usually part of the intake manifold and sits between the head(s) and throttle body and mounts/bolts directly to the engine/head. The other is a centrifical (spelling?) supercharger and that is usually externally mounted and has some sort of charge pipe that will run to the throttle body. They all run off belts generally and you can change the pulley diameter to change how fast it spins and that will also change the amount of boost (in psi). However you put too small of a pulley on it the belt will slip and you will loose power.

Me personally, I would rather have a centrifical supercharger being you can put a intercooler on it between the supercharger and the engine. As you probably know, when you compress air it gets hotter and on a engine hot air can mean trouble. Basically, if you get too much heat you will get detonation and that can kill a engine. Putting a intercooler on it will cool the air going into the engine. Its like driving in the summer vs. winter.

With a roots style supercharger there is no real efficient way to cool the air unless you go along the lines of alcohol injection and depending on the supercharger that can "chip or erode" the blades in it and it won't last as long.

There is usually more then what meets the eye on vehicles that are naturally aspirated and then you add boost to them. Compression ratio's, fuel control, and timing all have an effect on it. Sure, you can slap a supercharger/turbo on any engine but if you don't tune it right it won't last. The biggest issue I see is not enough fuel and people will blow there engines being they are not giving them enough fuel. To fix this you usually need to add bigger injectors and install a larger fuel pump that can pump the extra volume (fuel) and then get an adjustable fuel pressure regulator or FMU and then get it dialed in. Depending on the application and what you want to do it can get real tricky and complicated.

I have a 4 door cavalier that is turbo'd and you don't even want to know what I have been through on that.. If you have anymore questions I will try to help you out. Damn this is long... LOL I am going to bed.. :lol:

[Glass]

Paxton Superchargers has a gear driven centerfugial (sp) supercharger kit...They make the best kits out there. Basic kits from around 1800..all the way up to 9000.

They have the best name and rep in the business..and the gear driven supercharger sounds BAD ASS...I believe they have stock kits that can go on a stock 5.0 that deliver 5-6 psi of boost...

they also have a kit that is capable of building 27 psi of boost, and supporting up to 900 HP..

Paxton is worth checking out. If you go with a big boost kit, more modifications are necessary...the more boost, the more you have to change. Do some research. Alot of stock motors can handle the 5-6 psi blowers or kits...

--John

[Glass]

Ohh, and about leaning the motors out, and blowing them up...you can program your computer to increase the flow of fuel during heavy acceleration...to get it more fuel..so it wont lean out. Usually if the exhaust is really free flowing, it doesnot build back pressure, and leads to lean conditions..which is where lots of motors go bad.

Paxton has a tech line, a FAQ page, thier kit instruction manuals, etc on thier website. Do a search for axton superchargers.

--John