can run as high as 18PSI? unmodded internals
well... um... no. Theres a guy on here whos gone 30 psi and does do 20 psi everyday on a stock 2.2. He also said something about spinning it to 11k and then a 9k run around track before it finaly blew a rod barring, all on a 100k mile motor. NOW im not saying slapping this in your car will make it bulit proof. If you dont know what your doing you could blow it on 3 psi...