Mini Car Club of Auckland organised a dyno day, so we went along to see how our engine compared.
It didn’t do too badly at all.
It ran nice and smoothly and ended up making 64hp at the wheels, which was pretty good. Most of the other 1275s were making around 50hp, though there was a highly tuned Cooper S and an 8-port 1430 that showed around 80hp.
The modified air box appeared to work, with the fuel mixture remaining stable at high revs.