In all my previous turbo'd cars I've always disconnected the water from the turbo & never had a problem !

Now I'm runnin a GT35 so I gotta run water through it So added a Pre-Rad to combat it ! Every little helps in my book !

Jb

P.s. Jus incase anyone didn't know, cooling wasn't the main intention of the turbo being plumed into the cooling system