ive gone smaller before as most stores dont carry a 1/2" npt tap and the matching drill bit. Ive gone 3/8" npt without any problems and most places carry them.
I would try to source the 1/2" npt if you can, maybe online or something but as a last resort that is always an option. Fitting was a 3/8 npt to 1/2" barb and again never had an issue. Put it this way, its not any smaller than whats coming out of the turbo itself. lol
I would try to source the 1/2" npt if you can, maybe online or something but as a last resort that is always an option. Fitting was a 3/8 npt to 1/2" barb and again never had an issue. Put it this way, its not any smaller than whats coming out of the turbo itself. lol