Question about hub studs

The stock Nissan 240sx hub bolt is 42mm. Now I am guessing this 42mm
is the A in the pic below and not A+E.

Am I correct?

Since I am going with 60mm studs and wanting to keep a similar
layout I have now, I am getting 18mm wheel spacers made.

http://240sx.cubicdesign.com/images/misc/hubbolt.jpg

Does it matter where the reference for the measurement is? Both studs will, almost certainly, have the same head dimensions. In other words, an 18 mm spacer is what you want. Even though you could probably go with a 20 and still be safe.

In any case, I am doing the exact same thing. I’m making my own in shop at school. However, matty’s been slacking on giving me a hub and wheel to measure off of, since my car is back home.

Any chance you can give me your hub dimensions? In terms of hub plate diameter, stud pitches, bore size for both hub and wheel.

This is what I am getting my dad to make me. I am getting mine made
a bit more specific to my Volk adapters but for the most part you can
make it using similar dimension.

I didn’t measure the thickness of the hub itself but I don’t think it’s of
any importance for this application.

http://240sx.cubicdesign.com/images/misc/hub_spacer.jpg

can your dad make a tolerance tighter than 0.8mm?

half an mm on each side is a fair bit… my H&Rs snug up really tight

I just used 67mm as a figure becuase I figure I leave a bit of play.

I’m waiting for my wheel studs to come in before I get him to make this.

I want the spacer to sit almost tight on the hub but not so tight that it’s
hard to remove. What’ the exact inner bore on the H&Rs?

I may just get him to make it like 66.5 or something. Dunno yet.

I actually got 66.2mm off of H&Rs site but I recall measuring my actual
hub as having 66mm flat. Maybe H&R used a .2 to leave a slight gap?
:dunno:

0.8 mm is 0.0315". Any decent lathe will get you within 0.005" (0.127 mm) if not better.

Thanks for the specs G, will be making mine soon.

Just noticed… damn your metric ways!!

What are you gonna do if the king of england shows up at your door and starts pushing you around. huh?

I’ll draw up the spacer in CAD now, so if your dad needs an .IGS for CNC, or just a .DWG for doing it by hand, let me know.

My dad’s a traditional machinist. His shop has CNC and shit but he
prefers to do it old fashioned way (and because he can’t do CNC).

I wish he could He could make me some cool shit lol.

Don’t worry about the CAD files…He can do fine with the specs I gave
him. I like working with metric; it’s easier cuz the numbers are whole
for the most part.

Here it is:

http://img75.exs.cx/img75/9414/spacerdim3gk.jpg

http://img75.exs.cx/img75/4936/spacefront9mn.jpg