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Thanks for everyone's recommendation on this. So far, 5 votes for Spec 3 (including a buddy of mine who emailed couple months back) and 2 votes for centerforce. Appreciate anymore recommendations. -Chris

There's a trade off on turbos, you must select wisely based on your application, select it on the small size and you'll make torque at 2K RPM but cap out at 5K RPM. Select it on the large size and you'll make big power up to and past 6K RPM but will hurt torque production below 3KRPM. These...

Can you describe what is on this graph? What are the second set of curves that start at 5000RPM showing? Lets keep this an honest comparison and not jump to conclusions. If we want to continue to compare apples to oranges we could just throw up the dyno graph in the following post (17psig 03...

Could you provide a few more specifics? Is it a manual transmission? Is it pretty much a stock 4.6L 3V otherwise? Any chance you have a dyno pull from 2000RPM? What I don't understand are dyno operators aversion to starting the pull at lower RPM's. Do we all go around cruising at 3000RPM...

Centrifugal superchargers compress air and drive more airflow based on compressor speed. Positive displacement superchargers (like kb, eaton, and whipple) are constant volume compressors that pass a fixed amount of air with each rotation of the pulley. Since the centrugal superchargers builds...

Let me first say that I am a proponent of turbos over superchargers, as an engineer, turbos just make thermodynamic sense, hands down. But I do believe there is an advantage for each based on a specific application so I'd like to play devils advocate here and propose a study. I would like...

Turbo kits are definitely more efficient and with the rising costs of gas prices and government mandates on manufacturers to meet mpg requirements, that is the way to go. Are you running an automatic in your car? What's the lowest RPM your turbos spool up at? Reworded differently, about...

to further that, my brother raced his 92 Mustang with a full suspension kit, stock 93 cobra brakes (wonder where he got that from) sans Hawk pads and steel braided lines at Lime Rock and won ESP in NYR SCCA with that setup (I forgot the year)

Turbo kits are more common these days but the supercharger kits have been around for awhile, plenty of time for these kits to mature and gain experience. As far as cost friendly, on a fox body, its tough to beat a B&G turbo kit for $2900. If you're comparing prices, make sure to understand...

The saying quoted above doesn't really mean anything or is worded incorrectly. Its true that a supercharger is always spinning in relation to the crank shaft. So in terms of response (maybe what is being referenced as "supercharger is always on"), you will always have a quicker response from a...

how so? i'm not referring to how far from the floor it engages. i'm talking about how long the travel is from when the clutch starts to grab to when its fully engaged. i would think that's in the clutch design, not in the adjustment.

that's what I have right now, engagement is too short

Need to replace the clutch and am looking for recommendations. Clutch is 10.5" and I have the viper spec T56 with the 26spline input shaft so I'll need the disc to match. Other than torque/HP capacity, I want a clutch with a longer smooth engagement, enough of this on/off crap. Thanks in...

my yesteryear stang . . . sorry no publications :D

The wear and tear part is debatable. I think there are two reasons why people say turbo's are less wear and tear on the motor. First, the supercharger, as you know uses the crank to spin the compressor and therefore there is additional loading on the crank shaft and bearings from the drive...

oooh!!! heart is racing! hope the performance matches the anticipation.

this is great guys. thanks again for sharing. never knew we were amongst such celebrities, i'll have to start breaking out some old mag issues which i all have collecting dust in my basement dating as far back as '95. ha!

awesome car!! thanks for sharing the video, helps us get through these winter days.

Positive displacement supercharger (roots/screw) generally will give you more torque in the less than 3000RPM range than a turbo kit. UNLESS you select a turbo unit that is designed to make boost in that range but it WILL limit your top end power (unless some genius finally puts a staged twin...

ok apparently the file size on pdf's is very limited . . duh!?!?:smash: PM me your email address and I can email it to you. -Chris