I was told there is actually a classification for the 240 with the silvia engine in NASA by some other owners, so probably in there. I owe alot to HDDP for convincing me to get my but out on the track and now Im hooked. I haven't gone out because I have been saving up dough for this car, but I really intend to get pretty serious about the NASA thing. But for the next year at least, I am going to continue in HPDE, which isn't racing, but still your on a race track and is still frustrating when you are killing people in the twisty stuff and then you get passed like you are standing still on the straightaway because then you aren't able to hone your skills because the guys ahead of you are holding you up. So that won't happen anymore with this car. Its going to be making 270 whp by October.

that being said, I have seriously considered going into drifting. I love car control above and beyond anything else, so its a big option, plus they have drifting about 8 miles from my house (irwindale).