I don't know if anyone reading this thread will have any interest in my setup, but it is a Vortech-blown motor and it is a 1998 Durango 5.9-liter Magnum, so there may be some issues I addressed that might be of interest.
First off, I am a newbie on this forum, and have NO experience with forced induction. I built a street car ('72 Valiant 4-door sedan/360 Magnum/904/8.75") for fun and games... nothing serious. My wife was going to be driving it, too, and she hates a car with a ragged idle, so, I bought a cam with very little overlap. With a 750 Holley and a nearly stock short block and heads (except for the cam) it ran 13.35 @ 102mph, through the mufflers with 340 exhaust manifolds. Not very fast...
I decided that if I was going to beat anybody at all (I hang out with a bunch of Buick Grand National guys), I'd better do SOMETHING, so, I bought a Vortech V-1 / S-trim "new-in-the-box" blower off EBay for a grand.
I built my own "kit" for this thing, mounting it where the battery used to sit, on the driver's side. The guy who sold it to me had a serpentine pulley for a Viper that he GAVE ME (C-N-C piece!) that nested inside my V-belt pullies, so that the only thing driven by that bottom pulley is the blower.
I had to fabricate a mounting plate (not very hard) and buy every nut, bolt, bracket, discharge plumbing pipe and a long list of incidental hardware that this installation required. It took me 2 years...
In the final analysis, here's what I ended up with:
1972 Valiant ugly duckling, 4-door sedan (25 pounds heavier than a Duster)
360 Magnum engine
Vortech V-1
Home-brew installation
1/2" fuel system
Hughesperformance cam (the same cam I had eariler) with .525"-gross lift; 214/218-degrees duration @ .050"-lift; 114-degrees of lobe separation; Crane roller rockers; heavy duty pushrods and 300# (open) springs
Extreme velocity hat
Carb Shop 750 (4150) Holley double-pumper, modifed for a blow-thru application
TTI stepped headers/2.5" mandrel-bent exhaust/ Dyno-Max Super Turbos
MSD Boostmaster ignition/Taylor wires
Snowperformance Boost Cooler meth injection set to start at 3#
Stock crank, rods, pistons, head gaskets, distributor (re-curved)
Stock heads except for a 3-angle valve job and MINIMAL bowl work
9:1 true compression (I measured it.)
Wheel horsepower figures from a Dyno-Jet inertia-roller chassis dyno were 445 hp and 470 ft.-pounds of torque at 10 pounds of boost. That factors out to 525 flywheel HP if you use the 15-percent figure for drivetrain losses. I didn't calculate the torque figure, but it feels like a freight locomotive...
On the drag strip, it ran 7.59 @93 moh in the eighth (9.74 @ 106mph in 1,000 ft.) We don't have a quarter-mile drag strip in Arkansas, but the Wallace Calculators program said that should equate to an 11.80 @ about 116 mph... The car weighs 3,600# with me in it.
It was very slick that day and my best 60-foot time was only 1.81, which is very poor for this car. It spun all the way through 2st gear in six tries... I have since bought new, wider slicks and changed my 3.55 gear got a 4.10. I expect it to pick up about .25 with those changes.
It's a different car with the blower... and, the most obvious difference is, when you make the 2-3 shift, there's no perceptible drop in acceleration... it pulls
just as hard in the bottom of 3rd as it was pulling in the top of 2nd... it's weird!
I tried to post some pictures with this note, but the ones I have are too large for the size-filter, but if anyone wants pictures of the mechanical trappings of this thing, email me at
billdedman@hotmail.com, and I'll be happy to send you some.
The whole thing, including a fuel cell (I run av-gas at the strip) two pumps (a 31 psi BIG pump and a Holley Blue for layman's duty) along with a half-inch fuel system cost me about $4,500.00.
So far, with the band-aids I've installed, and the av-gas for high boost (the Buick guys would laugh me out of the room for that one...) I haven't had any detonation-induced head gasket ot piston problems that I know of. (I do a lot of compression tests!!!)
Would I do it again???
At age 70, I'd think twice.... but, when I stand on it, it makes me laugh out loud!!! Never had a car that would do that, before... so, yeah, I probably would.
Bill, in Conway, Arkansas
I should be in contact with them again in the next week or two after the holiday.
If needed...just like I did with my SRT-4, which still had its limits. Even a lower C/R engine will have issues with more boost. Hense the built motor, reflashed tune and Methanol injection...... 
