Hi, does anybody know the thread size of the oil pressure sending unit on a h22? I need to buy a tee piece for running a turbo oil feed and maybe a pressure gauge, i thought it was 1/8 bpst but have been informed this is wrong! I have seen the adaptor kits from greddy etc, are these a better option? Any help would be greatly apprieciated.

 

Depends on where you're tapping it from... Though 1/8 bspt is usually correct.

 

yeah the threads on the stock oil pressure sending unit is 1/8" bspt.