Originally posted by Tofu4G63
As far as I know there arent any HP laws as long as cars can pass the emissions testing in their state. We in Colorado are subjected to the same standards as they are in California. Our cars are put on a chassis type dyno that puts the vehicle under a certain load depending on the vehicles factory specifications. The determining factors of how much a vehicle can emit are weight, displacement of motor, and etc.
I guarantee that you could make a vehicle such as a Supra put down over 650hp to the wheels and still pass emissions like it were factory. How so? This vehicle being turbo charged, especially helped by the single turbo conversion, would most likely never hit boost while being tested. When this vehicle is not on boost it creates very low emissions. Visual inspections consists of having a catalytic converter, they do not even have to know if there is still a catalyst inside, just the visual. I have seen a CRX with a turbocharged Type R motor roll up to the place and given just a tiny hassle about the motor. All he had to do was talk to them for a minute and once she told them that it was still a Honda motor, they put it on the rollers. She passed without any problems.
As was pointed out by someone in a different state where they tell your average HP needed to complete the test, his was 10hp.
Cars are not redlined by any means during these tests. They are driven as if they were being taken on an average drive. The test is called the IM240. 240 being the 240 second span that they are put under load, IM i have no clue what it stands for anymore.
