Post me a pic or a link to that roots style from Vortech :)
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Here you go man its actually a twin screw.
2008 5.3L GM Truck Lysholm Supercharger Systems Released | Vortech Superchargers
In regards to the cog drive not being for trucks... If they make it for cars it can be made to work on a truck. I'd guess by switching to car front drive accessories the car cog setup would work, no? If you want it to make racket under the hood, this is the way to go IMO, the Pro is loud in general, and the cog drive is noisy too. There's all the power making noise you'll need :D.
the difference between car LANGUAGE!!!! and truck LANGUAGE!!!! is mounting it up. ive been runnign car LANGUAGE!!!! on my truck since 2006.
their are a bunch of videos on u tube of blown silverados, i watched a bunch of them last night.
my bad you tube
I know a guy who makes 20+ with a D1.... D1 makes enough power to destroy everything in your trans and driveline........
You need to get out of the little world that is LS1truck more often ;)
http://i29.photobucket.com/albums/c2...d/P1010206.jpg
YouTube - Procharger F1R LSX Cog KIT
Works just fine on a truck and its an F1R by the way. :chevy:
This thread is funny. Real funny.