the main problam is with the power requirements of electric motors. they make 12-volt motors for "emergency tire inflators" that can reach 50-60 psi but they only flow like 3 cfm. they also make motors that can flow make 90+ psi but still can only hold about 8.5 cfm. and besides those motors are 120+ volt and almost big enough to to power the car themselves. for cheap power adders your still better off just saving up some more and going with spray.

 

they are a joke dont waste your money

 

screw that get three or four...

 

the only one that i've seen that actually works is the thomas knight electric blower. the price for the head unit and everything you need to get it working, not to mention a strong electrical background, you may as well just buy a vortech or something.

 

someone has 100 bux laying around, we need some mythbustin going on here, no heresay, raw data

 

if i'm dumping 4500 on a f body, might as well dump 100 for a mustang mythbust right ghostrider?

 

There's no need to "test" one of these things--it is quite impossible to make any meaningful level of boost on a 4.6L engine with a 2-3 amp (1/20 HP) bilge blower. The people selling these things are liars and cheats, it is amazing that they get away with it.[/align][/align]2 psi boost at 2000 rpm would require 2.4 HP just to compress the air, add bearing friction, inlet and outlet tube restrictions, and rotational inertia and you'd need at least 5 HP. 5 HP at 12.6V would be a current drain of 300A!!![/align][/align]At 6000 rpm it would take 7.2HP to compress the air--this is for a lousy 2 psi boost, get into any big numbers (let's say the 15 psi someone mentioned) and you're looking at 17.5 HP at 2000 rpm and 52 HP at 6 grand.[/align][/align]Here's a Turbo Magazine article about Tom Knight's project (no relation that I'm aware of)...[/align]