[ACademic]

2 1/2"? No. But with feeding the hat, the injectors above the blower and the ones below it, the fuel pressures are insane and push several gallons of nitro methane in and out of the chambers in under 4 seconds (1000 ft runs now). Much of the fuel can't even fully ignite, so the result is really cool 12 foot flames from each set of zoomies.