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    • Going to a Precision 6466 from 6266 on a built Evo 9 produces 910 awhp

      Here is an Evo 8 built by AG Autosports and tuned by Crispeed Tuned that decided to go from a Precision 6266 turbocharger to a 6466. Apparently the owner decided the 837 all whee horsepower he was making was not enough.


      The 6466 produces 73 more horses at the wheels but the peak difference doesn't tell the story. The torque curve is holding much further to the right:


      Essentially the 6466 can rev out quite a bit more with little spool sacrifice.

      Definitely a worthwhile swap and some good tuning on the Haltech PS1K by Crispeed Tuned. This is a modified AG 900 package pushing 40+ psi of boost.

      This article was originally published in forum thread: Going to a Precision 6466 from 6266 on a built Evo 9 produces 910 awhp started by Sticky View original post
      Comments 2 Comments
      1. suspenceful's Avatar
        suspenceful -
        I did a 60mph roll against an Evo 9 with a 6466 @ 44psi and got waxed. He said 750whp but I think he was sandbagging me, lol.
      1. Payam@BMS's Avatar
        Payam@BMS -
        Click here to enlarge Originally Posted by suspenceful Click here to enlarge
        I did a 60mph roll against an Evo 9 with a 6466 @ 44psi and got waxed. He said 750whp but I think he was sandbagging me, lol.
        Gearing.