I actually think it was slightly over 520rwhp but I rounded off.. The car was properly tuned and was making full power by (from what I remember by seeing the dyno results) by 5k. After that it was a flat shelf of 520hp from then on.

It was a fully race prepped Z that went to Moroso more then a few times..There is some video of it out there somewhere from in cab of him taking out lots of vehicles..And that was before he even hit the 520hp.

Besides, it was also on the street so gravel/dirt might have played a part? Who knows. The car was just crazy once the snails kicked in. And they kicked in REAL fast being they were not that large.