Quote Originally Posted by Deco84 View Post
nice one lads is the 1j a 2.5 turbo
Correct, 1JZ is 2.5 twin turbo. 2JZ is 3.0 twin turbo.

Then you can have a 1.5JZ and 2.5JZ which is when the a 1Z block is mated with a 2J head and vice versa.