Originally Posted by albroswift
KB's are awsome on the highway. Minimal parisitic loss and VERY smoth transition from vacuum to boost. Milage only suffers if you use the boost.
The CF style blowers IMO are even smoother and easier to stay out of it with... I drive my car in rain and snow so I must be able to stay out of boost, must!
I cruise at ~80 MPH and it is not in the boost, on CC uphill it sometimes surges a bit and that is somewhat annoying but acceptable...
I added over 200 RWHP with my CF blower and am now in the mid 500s, totally streetable, all weather, and still mid 20s MPG on the highway, same as NA!