Roush Twin Screw or Roots

[S281SC#08]

Ok i have 2002 S281SC which comes with the series II right well then i was told the previous owner of my car upgraded to a series IV. So if i have the series IV then is it a Twin Screw or a Roots style blower. thanks for the info.

 

[SSS281]

whipple makes the twin screw series IV

 

[Saleen Mike]

Photo of the engine/SC?

 

[S281SC#08]

Photo of the engine/SC?

 

[mattch2]

yep taht is the series4..twin screw

 

[00-Saleen]

Series IV Whipple 1600AX 1.6 Liter Twin Screw