Archives: blower size

HP Gain from Small Opening in Roots Blower Case

Roots blowers are popular in motorsports for making more power. They are made up of a simple blower case with two rotors inside. The rotors spin from an engine driven blower drive. This pumps extra air into the engine. With extra air and the appropriate extra fuel, extra power! The blower case design was changed […]

Clearing up ambiguous information — blower size

I had an interesting email exchange with a very knowledgable and astute racer that I thought I would share. I’m happy to see he noticed the differences: I noticed an error in the “Superchargers for IHRA” article… “One way of looking at where all of that power came from is to look at the displacement […]