[1SIKB13]

To drill the drain for the turbo, what is the correct size to use, 23/32 or 45/64.
I tried searching and both came up so any info would be good.
Matt

 

[Cliff]

They're both fine. Most would tell you 23/32, but really, it's whatever you have available to you (either 23/32 or 45/64.) They're so close (within 1/100in. to be exact) that it wouldn't hurt either way.

 

[1SIKB13]

ok thanks for all the help.

 

[Nyc Sr20PowerD]

45/64 is just a slightly smaller hole, its easier to tap with the 23/32

 

[coach]

Either one works man, don't worry about it.

Brent