I been looking at keeping a stock vehicle and making a gnx turbo clone car just wondering what has been in the 1/4 with them with no mods, but the basics..
high 11s @ 115 in the wifes old stock TTA .. hell that was in 1989 !! Prob go a little better with the new tech out there now. Oh I would also run Alky !!
member stevemon :1986 GN, 11.72 @ 115.48, stock turbo. Red 108 Chip
member FLR :11.980@111 with
member sweetv6:22psi 12.01 @ 113.3 mph with 1.69 in 60 ft
member olando 87gn:28psi on the stock turbo, 11.92 @ 111MPH / Nittos
here are a few more max psi of stock turbo??? - TurboBuicks.com