Tell me about lug nuts Oppo

"Trunk Impaired 318" (matteocscaptura)
04/02/2015 at 19:36 • Filed to: None

So Ive run into what I think is a slight issue with my BMW bottlecap wheels that Im trying to put on my MR2. The E30s that bottlecaps came on used a lug bolt whereas the MR2 has studs and uses lug nuts. Now I know that you're not supposed to use certain lug nuts with certain wheels but Im getting a bit lost with the transition.

As I understand it I need a lug nut that has the right seat (cone) for the wheels but also the right pitch for the MR2s studs (12x1.5). Is this even remotely right? Also, the center hub for the MR2 is 54.1mm and the E30 that the wheels came off of was 57.1mm, am I going to need hubcentric rings (if they even make them for a 3mm difference) or will the concical seat lugs make that a non-issue. Thanks!

DISCUSSION (15)

Leon711 > Trunk Impaired 318
04/02/2015 at 19:46

spigot rings for 57.1 down to 54.1mm are freely available in the UK so you should be able to get them in US. it's better the have them than not have them considering how cheap they are. got a set of the right nuts and you are ready to go.

Trunk Impaired 318 > Leon711
04/02/2015 at 19:51

Right, how the hell do I figure out what the right nuts are? Thats where Im lost. Ive only ever owned and worked on BMWs prior to owning the MR2 and they all have lug bolts so this is a whole new world to me.

SidewaysOnDirt still misses Bowie > Trunk Impaired 318
04/02/2015 at 19:55

The OEM lugs for the MR2 didn't fit on my other wheels either. Luckily, my wheels came with some, but I didn't have any luck getting them at autozone or anything.

Trunk Impaired 318 > SidewaysOnDirt still misses Bowie
04/02/2015 at 19:58

I havent even tried putting them on yet, Im just trying to figure out what dimensions the right nuts should be

Squid > Trunk Impaired 318
04/02/2015 at 20:08

If you can find a hubcentric ring, use it. But I think finding the right lug nut cone pitch will be the hard part. I wouldn't rely on just the lugs keeping the wheel centered.

Leon711 > Trunk Impaired 318
04/02/2015 at 20:11

a cursory google tells me E30 wheels have a 60 degree taper and are also M12. So, in theory any M12x1.5 nuts with a 60 deg taper will fit, if you catch my drift. looks like a common size, if your existing nuts are 60 deg you should be ok as long as the nuts tighten up properly.

Trunk Impaired 318 > Leon711
04/02/2015 at 20:20

So something like this should work?

http://www.amazon.com/gp/product/B00…

Leon711 > Trunk Impaired 318
04/02/2015 at 20:25

if you can confirm 100% that the bottle tops are 60deg and that there will not be too much thread sticking out with the new wheels on then those will do the job.

Trunk Impaired 318 > Leon711
04/02/2015 at 20:27

Can you explain too much thread sticking out?

Leon711 > Trunk Impaired 318
04/02/2015 at 20:32

it's kind of difficult. if the distance from the rear face of the wheel (side facing the brakes) and the tapered seat is smaller with the e30 wheels than with the MR2 wheels you would then have more threads showing on the stud, thus meaning that you would need to wind the nuts down more to tighten the wheel. this may be an issue if like the nuts you posted don't have open ends.

Leon711 > Trunk Impaired 318
04/02/2015 at 20:35

Also, From the Amazon ad.

NOTE : If your wheel studs stick out past your wheel more than 30mm (a little less than 1.25"), our closed ended lug nuts will not work for you

SidewaysOnDirt still misses Bowie > Trunk Impaired 318
04/02/2015 at 20:36

May as well try it. You should be able to feel it if it's not seating correctly, or at least I did when I tried putting my originals back on.

Trunk Impaired 318 > Leon711
04/02/2015 at 20:36

Got it, thanks!

Leon711 > Trunk Impaired 318
04/02/2015 at 20:39

God Speed! I hope it works man. I gotta go to bed, so if you need anything else I will get back to you in the AM if no one else does, because right now it's tomorrow in the UK.

PS. I went German (wheel bolts) to Japanese (nuts)

Trunk Impaired 318 > Leon711
04/02/2015 at 20:40

You've been a great help, I should be set! Thanks again!