My Z made 393rwhp today and 414trq on pump gas. We cut the pull short as my friend thought he might have heard a slight ping but it was very slight he said and he couldn't verifty if it truely was a ping or a rattle of something else. I stopped the pull immediatly around 6500rpm so i was almost done anyway. But none the less i should of had a wideband but since it was one pull on the same setting i did 386rwhp on i figured it was safe. My turbos are shot after 125,000miles and smoke A LOT now so i wont be dynoing anymore until i get some upgraded turbos. Boost was roughly 18.5psi.
On another note i'm trapping 92mph in the 1/8th on street tires and pump gas. Thats roughly 116-118mph in the 1/4 on pump gas. I was excited when i ran those mph's consitently. Just disappointed 8.3s ETs. I guess i was hwy racing with my mph numbers lol.