Hello gentlemen,
I decided to join the forum and join in on the discussion. I am the owner of the car in question...
500+whp factory longblock cars are not common by any means but that isn't because it isn't possible in my opinion and more a result of people not trying it. There are a few tuners out there that have tuned multiple 500+ cars on the factory engines, including my tuner JR. Most people comment on longevity or lack there of but my car has been running 30+ psi on this GT35R for over 2 years and involved in countless races. The car has had an interesting past of trying to accomplish what others could not, it was converted to E85 6 years ago, being one of the first Subarus to do so. It ran 11s on the factory VF39 5 years ago and would see 25-26psi through that turbo on a regular basis, so the natural next step was to run 10s on the factory engine. I never thought it would last for 2+ years but it has and we have continued to turn it up and just last week it trapped 135mph at the 1/4 mile track which is an indication of the power the car makes. When the time comes and the closed deck motor goes into the car I will take pictures of this factory motor.