I will have to convert my 1GZ to a dry sump system to swap it into a MK3 supra. I have a plan for the pan but I am not sure how many stage pump to get. I am thinking that a 3 stage would work but a 4 stage would pull more vacuum. I have been having trouble finding any one local to me who has had much experience with dry sump systems. I was hoping that maby some one on hear would have some advice as to what size pump I should get.