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    • 490 whp, 500 wtq BMW G29 Z4 B58 on factory turbo with JB4 + Fuel-It! Flex-Fuel

      This is what a tuned B58 torque and power curve is supposed to look like. This is not some absurdly tuned B58 for peak figures down low and social media bragging rights that kills your turbos or your motor when the rods let go.


      These curves looks great:


      This is on the stock B58 turbocharger with a JB4, intake, downpipe, and the Fuel-It! flex-fuel sensor.

      What ethanol content was necessary for these numbers? E42:


      This is a performance increase to dollar ratio that can not be beat.

      This article was originally published in forum thread: 490 whp, 500 wtq BMW G29 Z4 B58 on factory turbo with JB4 + Fuel-It! Flex-Fuel started by Sticky View original post
      Comments 1 Comment
      1. Eleventeen's Avatar
        Eleventeen -
        Nice!!! Get this thing to the track; Iím curious what these convertible Supras run with mods.