Engine Punk

I think part of the secret to Mrs Jo Jo's success is the low seat height Mrs Jo Jo belongs to the same equipe as the Salamanda Special. Both are Austin Sevens but have been modified along different lines and at different times. Whereas the Salamanda Special is a modern interpretation using authentic materials and with a wonderful eye for detail, Mrs Jo Jo is a real piece of Brooklands history. Mrs Jo-jo's engine room The trick with whispering up significant horsepower gains from an Austin 7 engine seems to be to connect a blower to it, often of an equivalent capacity. In this case a Powerplus vane supercharger pressurises the little engine and it would seem a cruel thing to do to it if it didn't keep coming back for more. I've heard whispers of 60 bhp from a blown 747cc Austin 7 engine so that's a very healthy power to weight ratio. This one of the joys of an event like Wiscombe - you can get up really close to items of interest Wiscombe was its firs...