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ok, i like the fact that the 2jz stock twins can boost to 18psi safely, but i read an atrticle and the writer said the 1jz twins is not meant to boost over 14psi unless youre using steel blades. but in australia, one guy said he took it to 20psi just to see if it would go that high, and it did. only thing happened was that he blew off the charge pipe.
@onejay, how much boost are you running?
My buddy is boosting 18lbs on the stock twins, Im at like 12 or 14 on mine. I wouldnt push them too hard. The twins are gonna be torn off in a week or so in favor of something a little more fun, cant imagine trying to make the usdm's fit that mess.