http://www.tecarts.com/event/p10/index.html
Looks like they do just what we do. Takao, the Tec Art's driver and mechanic was driving the car and testing with a backup motor. He anticipated the car to be 1.5 seconds slower than usual, but clocked a fastest lap time 3 seconds slower than usual. He then gave the car to Uchibori, who then proceeded to beat his time by .5 seconds! Its cool to see that they do the same fun stuff we do here in the states.
In addition, looks like Tec-Art's brought a customer/student with them. He runs a 7AG setup with 195/50/15 goodyear tires, and was 7.3 seconds slower than the full N2 Tec-Art's car. They were baisicaly praising the 7AG, and were mentioning that from this point forward, the request for that engine will be high among Tec Art's customers. Who knew?