3S-GTE USDM Turbo Engine Fuel pump wiring mods [Archive] - Toyota MR2 Message Board

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Hey guys, So in the process of trying to figure out my turbo upgrade I also found that I had a stock 2.2 pump which will not cut it over 8 lbs of boost. This method I am going over can also be used by someone trying to go big HP with a intank turbo pump. So I did some research and found this article by Wolfkatz. http://www.wolfkatz.com/DreamweaverDocs/MR2%20Turbo%20Fuel%20Pump%20Replacement%20Testing%20Report.pdf In essence if you run a 2.2 pump and you add an inline you need a safety