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    • Katech builds world's most powerful LT5 hitting 1308 horsepower with twin Precision turbochargers on direct injection only

      You might be asking, how is Katech tuning the LT5 when nobody has cracked the ECU in the C7 Chevrolet Corvette ZR1? Well, you will notice this motor is not in a ZR1 but outside of it being tested on an engine dyno.


      That sure makes it easier to tune, build, and dyno but it does not really do anything for the street car until these applications actually make it onto the street. It does point to the LT5's capability though.

      One of the nice things about the LT5 is that it has both port and direct fuel injection. Well, Katech decided to go with XDI pumps and build up the direct injection fuel system rather than rely on port fuel injection.

      They certainly made a statement by hitting 1308 horsepower showing off what their direct injection fuel system is capable of:


      Achieved on the stock camshaft no less.

      Further details beyond what is in the video are not provided.


      This article was originally published in forum thread: Katech builds world's most powerful LT5 hitting 1308 horsepower with twin Precision turbochargers on direct injection only started by Sticky View original post
      Comments 5 Comments
      1. Stevenh's Avatar
        Stevenh -
        Wtf is that torque curve?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Stevenh Click here to enlarge
        Wtf is that torque curve?
        Something to do with the dyno? I don't really get it.
      1. SpeedLimit?'s Avatar
        SpeedLimit? -
        Click here to enlarge Originally Posted by Stevenh Click here to enlarge
        Wtf is that torque curve?
        Wheelspin.
      1. Stevenh's Avatar
        Stevenh -
        Click here to enlarge Originally Posted by SpeedLimit? Click here to enlarge
        Wheelspin.

        Errrrrrm....

        Attachment 58329

        wheels not found.

        Edit: Now that I have actually watched the video, its pretty easy to see they show a boost gauge and boost ramps from 20 to 25lbs starting at 5,700rpm.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Stevenh Click here to enlarge
        Edit: Now that I have actually watched the video, its pretty easy to see they show a boost gauge and boost ramps from 20 to 25lbs starting at 5,700rpm.
        Yeah. They aren't controlling this on the factory ECU though so who knows when or if we will see what it actually looks like in a car.