How much horsepower does a 2006 STi put to the the ground? Not at the crank...

Question

How much horsepower does a 2006 STi put to the the ground? Not at the crank...

Answer 1

That all depends on the Dyno brand that you do the pull on. Ambient temperature takes a toll on turbocharged vehicles, as does the brand/octane of fuel you run.

On the higher side of the scale, they range from 220-230. That's stock.

About the Evo's... It's all in the driver. Do some research.  

Answer 2

Their weak 225 if on a good day, and if your lucky. Look out when an Evo pulls up cause you'll get PWNED! lol

Answer 3

Correct that it will depend on the dyno.  On a proper loading low reading Mustang dyno it might read 240 to 250.  That's at a good shop that leaves the dyno calibrated the same for everyone.  Some shops will do baseline pulls in a different setting to show that they make high gains with tuning to boost their reputation but that's just sad.  On a higher reading Dyno Dynamics or Dynojet it will read 20 to 30 hp higher.   On our local dyno at PDXTuning, a stock STI on a average temp day will read around 240hp and 250tq.  with just a turbo back exhaust and a tune, I have seen as high as 310hp and 340tq.  Torque gains are even higher on the 08's with dual AVCS.   So all in all, your question is too hard to answer accurately with all the variables.  Just find a reputable Tuner and give them a call to have your questions answered better.  I know the guy's here at PDXTuning are always happy to talk to people so any good shop in your area should be willing to do the same.