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Quick question for all those who have an IS300 or know about the 2JZ-GE engine. I want to turbo my IS300. Assuming completely stock engine and transmission, how much would be a safe amount of PSI to run with this turbo kit? Im not looking for enormous amounts of power, think 350 or maybe even 300 horses would be enough for me: http://www.ebay.com/itm/Supra-IS300-SC300-GS300-2JZ-GE-2JZGE-GT35-T4-Turbo-Kit-68AR-3-V-BAND-Downpip
See I have this fancy little chart here (pic related) that tells me when I would have to swap internals, but that assumes manual transmission. I have automatic. Can someone enlighten me what I would have to do to the car along with the installation of the turbo kit, and how much boost would I have to run to achieve 350 HP?