don't take my word for it.. but afaik, with a forged block you're probaly good until 15-16psi until you need to replace the weak stock (155cc?) fuel injectors. The 1.6L Mitia's injectors are a good alternative to something like new $400 440CC's. They're 255cc I think.akeem1003 said:How many psi of boost can a built motor take with the stock turbo and stock fuel management?