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Hey guys, Have recently had problems with excessive blow by at the track. I have an at performance catch can with 2.3l capacity and fill it up after 5 or so laps. Have been told this is normal for Rb's but seems pretty excessive. I have seen peoples setups to drain from the head back to the sump but a healthy motor shouldn't need that? Im only running 250hp with a standard high flowed turbo. Thinking i need a rebuild but want to here peoples thoughts. Do freshly rebuilt rb25det's still push oil out at the track? TIA