Every time we go to Subic and other provinces in the Northern part we use SCTEX. Upon entering SCTEX my husband transforms our family van into a sports car, driving at almost 200kph. I would always remind him, "Dad you're going almost 200". And he'll say, "I'm just following the sign: Speed Limit 100kph/60kph, add that up, that's 160kph.
Be wary on how fast you go. We visit Subic at least once a month but it was our first time to be apprehended due to OVERSPEEDING! Ha, we were CAUGHT and was asked to side park while the police officers get my husband's driver's license. It took my husband almost two weeks before getting back his driver's license. FOLLOW THE SIGN, not only because you do not want a ticket on your way back home, but mainly because of your FAMILY's SAFETY (I hope John reads this post, PEACE DAD, PEACE!!!).