I am , currently , building a 1930 VL powered vintage sprint car[ a chain drive GN from 1922] and am curious to know if there is any information out there regarding supercharging these engines using blowers from the 1920's.

Osky

 

Pete Hill ran a Supercharged Knuck back in the '70's and '80's. Don't know what happend to him. I own one of his hotrod Sportsters. Go to www.texasscooter.com , click on Reds Scrapbook, and click on page 2 of the scrapbook to get a look at it. Red might know someone still running one.
Al

 

I was watching a documentary the other night and they mentioned that aircraft started using superchargers in the 20's. You might find something aircraft related that might work.

 

finding a small supercharger of that period is going to be very difficult. Most from that era were used in large displacement engines (aircraft, era super cars etc.) as far as I know.

 

Thanks guys - all very helpful[been on vacation so apologies for late reply].
There are quite a few small blowers from small capacity auto engines in UK/Euro cars of the late 1920's and this may be the direction I have to go but still hunting for info re V Twin applications.