I'm in the process of a s5 jdm 13t swap into a NA chassis....I'm confused about the power steering though....The pump that came with the engine takes 2 holes (for lines)......the steering rack also has 2 lines going into it, but only one line goes from the rack to the pump. The other line from the rack goes to the cooling loop i believe....so if i use the line from the chassis, this leaves me with an extra open hole on the pump (the upper hole)...if i use the 2 line set i recently bought, both holes on the pump are accounted for, but this leaves a loose line at the rack...any ideas? I've searched and all the pumps seem to be the same....however, i have seen racks with either 2 holes or 3

 

Use the original NA bracket and P/S pump. If that's your S4 in your avatar, you'll run into problems mixing S5 P/S parts with an S4 P/S computer anyhow.

 

I think i figured it out! i need a 89-91 "base" power steering pump, that doesn't have the gray upper piece with the extra hole on top.....sorry

 

Thats for getting back to me......yeah i've had a s4 na for quite awhile....this car is staying intact....Ive been getting parts for the s5 i'm working on.....The person i bought the car from still has the s5 NA engine....i'll just pull the pump from the NA engine.....GEEZ why can't mazda just keep things simple!!!!!