Coolant pipe bore?

[RXSpeedy]

Converting to a single turbo now got to the part where the turbo is sitting too close to the housing so no chance the rest will fit. Any ideas on what size bore the coolant hose is? id go to my car but its on the other side of camp lol

Thank you

[Jono FD3]

the rad coolant pipe is 38mm IIRC.

[RXSpeedy]

seems a little on the big side is thats the top and bottom rad hose size isnt it? i meant the hose that connects to the metal pipe that runs along the bulkhead then into the cabin.