PushinTheLimit

Other than the very high price... is there any reason why noone gets these installed? I just never hear about those types on any mustangs much.

Sap

I think you hit the nail. For the same price you can get a better supercharger, or a similar supercharger with additional supporting mods (Intercooler, Gauges, Powerpipe, etc.)

E.

tt460

Not that the premium price for the Roush kit is worth it, but the Roush kit does comes with a 3-year/36,000 mile warranty. I'm pretty sure the Roush kit is based off of the Eaton M90 and probably comes with absolutely every nut, bolt, hose-clamp, wire-tie you would ever need to install the kit.

I would think their target market is probably someone who:
[ul][*] Has alot of disposable cash[*] Doesn't want to have to mess with anything once it's installed[*] Wants the car to drive like it came that way off the showroom floor[*] Is willing to pay a premium for all of the above.
[/ul]

Birdieman4

It is mostly because anyone that has done their homework, and is informed about positive displacement blowers, would opt for a screw over a roots. Bottom line, it is a roots blower, and isn't nearly as thermally efficient as a twin screw. That's a lot of it.

PushinTheLimit

Ah... I was thinkin it was a twin screw, thats why I was wonderin why noone talked about them. No wonder everyone goes for either a Whipple or KB.

Birdieman4

I would opt for a centrifugal over a roots blower every time. (But not a screw)