What is best for the 2 bolt diamond shaped -AN flanges for oil/water that bolt to a turbo Ally.Steel or S/Steel ?? ive seen them in ally and steel but surely turbo gets to hot for Ally oil/water flanges?? anyone know whats best.

Hi,

i think alu is fine, the water not just cool the turbo, but also the connectors and hoses

i would not use stainless bolts and nuts on parts that get frequently hot and cold, they will become unscrewed after time if you don't use any special security method

greetz

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KEEP COOL UNDER PRESSURE

street legal?.....perhaps in tschibuti

dont use stainless steel think of Bio metallic corrosion dissimilar metals re-acting with each other. Use ally after all the cylinder head is and that handles the temperatures well

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Captain Sensible