06 STi – HTA GT3586R – dyno tune

Posted by x99percent on May 29, 2010

This was a complete build from the ground up, done by Jan and Angel. The car’s previous setup had a Blouch Dominator 1.0 turbo that put down 330whp on the heartbreaker dyno, resulting in a 1/4 mile pass of 11.8 seconds. Of course, the owner still wanted more.

This time around, a custom rotated-mount setup with a large turbo was installed along with a slew of supporting upgrades. The original block was bored over and rebuilt with Eagle rods, CP pistons, ACL race bearings, ARP head studs, and Cometic head gaskets. Killer B Motorsport’s reinforced oil pickup does its part to keep everything properly lubricated.

The basic parts:

  • GT3586R turbo with HTA billet compressor wheel and Tial turbine housing
  • 1200cc injectors
  • custom fuel system
  • Ported heads
  • Brian Crower stage 2 cams
  • TurboXS FMIC with custom piping
  • GT-Spec header
  • TiAL 44mm wastegate

This resulted in a set of strong, but reliable tunes on pump and race gas.

The results:
Pump gas: 392.6 hp @ 6750rpm and 335.5 ft-lbs @ 5750rpm
Race gas: 445.5 hp @ 6750rpm and 377.5 ft-lbs @ 5500rpm