Miriam Macmillan bumps her class record of mph to 238.2 mph in her turbo K15 CRX on the long course at Bonneville in August 2013. Since the 2011 run, we tripled the size of the intercooler, and doubled the intercooler ice to 100 lbs. We maxed out the boost of the GTX35 at about 35 psi - and then added a 100 shot of nitrous. The poor turbo couldn’t take the heat and excessive RPMs and expired 2/3 of a mile before the finish. This was not the turbo’s fault. We simply pushed it past the manufacturer’s