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what I said was the BB turbos are much less tolerant of OVER boosting compared to standard turbos. That is being pushed beyond rated specs. That means running way hot, causing possible oil flashing in the bearing/oil galleries, and I'll bet ball bearings are much less tolerant of foreign particles. However, if the turbos are run within their specs, then there is no problem... you can do extended high speed runs all day, so long as you do not try to boost beyond what the turbos are capable of. The cases I am referring to is if you try to run, say the GT2530 at 35PSI... good way to kill the turbos quickly. I do believe that some of the specs I got earlier may have been incorrect... I was told around 1.4 kg/cm2 was the limit for GT2530 and PE1420, but that seems to be alot less than what other sources have claimed. It may be that its 2.4 rather than 1.4...
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