I keep getting diff. opinions on what color bearings to run.. I had my rods and crank machined and I ended up with a rod ID of 1.890" and a crank OD of 1.770" I think I should run a clearance of .0015"

1.890 minus 1.770 = .12 now subtract goal clearance of .0015 and you get .1185 now divide that by two for each half and I get .05925 and that puts me in a BLACK all the way across if I do it in inches.

now if I convert to mm I have a rod ID of 48.006mm and a crank OD of 44.958mm and a goal clearance of .0381mm

this makes it a 48.006 - 44.958 = 3.048 - .0381 =3.0099 /2 = 1.50495mm which is also in the BLACK range .

Did I do this math correct? and is .0015" or .0381mm a good clearance for a B20vtec? I am running Eagle rods

thanks

 

Your math is correct, and assuming you took your measurements with precision measuring tools with a high degree of accuracy you're in good shape. Depending on the build .0015" is fine for daily driving, if it's gonna be beat on a lot, shoot for .0017" to 0.0019" if oem longevity isn't a concern.