Test Data
FuelTech Ltda (Brazil) S258 on Calibra 2.0 16v Turbo (613whp)
With 2,3bar (34psi) of boost, came 614whp, and the most impressive, in my point of view, is the plain curve of power, from 5900rpm to 7900rpm (the car runs 8300rpm mostly) we have 603whp of medium power!

I am using a S258 with .85 divided T3.

Here the power chart and as you can see, this was the 35th dyno run, and this engine has also almost 10,000 miles, it is my street car.

In comparison with the GT3076R turbo, the S258 spooled 300rpm faster, and the top power cannot be compared because I forgot to remove the darn air filter!

Congratulations Dan, David and all Bullseye Team, this turbo is the best!
 

Click to view a video of the dyno run

 
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