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Old 02-08-2010, 11:25 PM   #1
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Default Where to buy extra long wheel studs?

Looking to buy longer wheel studs to run with the spacers I am going to be running on my car and can't seem to find any longer than 2.75". From what I've gathered, the stock studs are 1.75", so if I am runnin 30mm spacers in the rear, the 2.75" studs probably won't be long enough to run safely especially since the studs come with "Speed Tips" where the last .25" is turned down to help the lug nuts start. The fronts should be fine since I'm going to run 15mm spacers, but I'm thinking I'll really need 3" or 3.25" studs for the rear. One thing I did notice was that ARP does make a 3.25" M12x1.5 stud for Honda/Acura, would this stud work? Anyways, if anyone could point me in a right direction I'd be really appreciative. Thanks guys!

http://www.arp-bolts.com/catalog/Cat...talog_0066.pdf
Miata Accessories from Pure Miata - ARP Wheel Studs for 1990-1993 Miata # pm_whlstuds_9093
Applied Racing TechSpec Miata Speed Tip Wheel Studs-SafeRacer
https://appliedracingtechnology.ipower.com/products.php
http://www.jegs.com/i/ARP/070/100-77...oductId=747558


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Old 02-08-2010, 11:28 PM   #2
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Please don't just run a 30mm chunk of metal on them.

You want something like this:
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Old 02-08-2010, 11:36 PM   #3
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Ditto::::::


Would a bolt on spacer be a better route to take?
One where you use your existing studs to bolt the spacer to your hub, then 90 degrees off from that spacer are new set of studs that are made into the new spacer... I know they have been pictured on here before.

I would imagine that mount to be more fixed than 3 mile long studs out from a hub.


Just my thoughts.


goodluck
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Old 02-08-2010, 11:38 PM   #4
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Quote:
Originally Posted by crashnscar View Post
Please don't just run a 30mm chunk of metal on them.

You want something like this:
Quote:
Originally Posted by Cspence View Post
My thoughts exactly.


The one thing I noticed wrong in sketches above is that the spacers I was talking about are both hubcentric and wheel centric. Therefore the studs are not solely responsible for supporting the weight of the car and the rotational forces of the car while it is being driven. With the style spacer I was refering to, I would think that the hub would take on the majority of the stress vs the lugs which would just be holding the wheel on, not supporting the weight of the car. The only increase in stress on the lugs that I can think of would be the rotational forces from accelerating and decelerating since the wheel would be located further out on the studs. Even with this in mind though, I dont think this would cause any rise for concern since these forces probably wouldn't even be applied to the studs since the wheel would be clamped to the hub with 80+ft.lbs per stud....I'm thinking any forces would be applied to the hub as a whole. The picture below kind of explains my thoughts based off the custom spacers from Motorsport-Tech where the hubcentric "inside" bore would be 54.1mm (Stock miata) and the wheel centric bore on the outside would be 67.1mm for the 6ul. Any one else have some insight on this subject?

We manufacture the best Wheel Spacers money can buy | Motorsport Technology

https://www.miataturbo.net/forum/t40716-10/

I don't particularly like the "adapter" type spacers since you would effectively double the number of possible failure points, but I guess for the size I need on the rear it may be my only option if I can't get studs long enough. I had originally planned on having custom spacers made that were hubcentric and wheel centric, not just generic slabs of metal.
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Old 02-09-2010, 12:07 AM   #5
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On a second thought, I think you guys may be right on going with adapter style spacer. I poked around the Motorsport-Tech site some more and they will cost the same as the regular spacer and they can also be made hub and wheelcentric. I guess disregard my questions about longer studs....

Wheel Adapters, Wheel Spacers, Hub Centric Rings | Motorsport Technology
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Old 02-09-2010, 03:50 AM   #6
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Quote:
Originally Posted by Cspence View Post
On a second thought, I think you guys may be right on going with adapter style spacer. I poked around the Motorsport-Tech site some more and they will cost the same as the regular spacer and they can also be made hub and wheelcentric. I guess disregard my questions about longer studs....

Wheel Adapters, Wheel Spacers, Hub Centric Rings | Motorsport Technology
**** they say they come with a lifetime warranty as well! seeing how they are both hub and wheelcentric, it seems like a good route.
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Old 02-09-2010, 07:35 PM   #7
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Quote:
Originally Posted by Cspence View Post
On a second thought, I think you guys may be right on going with adapter style spacer. I poked around the Motorsport-Tech site some more and they will cost the same as the regular spacer and they can also be made hub and wheelcentric. I guess disregard my questions about longer studs....

Wheel Adapters, Wheel Spacers, Hub Centric Rings | Motorsport Technology
And ordered....I'll finally shut up about about all this ****

Front: Adapter Style spacer 19mm 54.1mm Hub 67.1mm Wheel
Rear: Adapter Style spacer 30mm 54.1mm Hub 67.1mm Wheel

If anyone else has to order spacers and uses these guys, make sure to call...they'll give you better pricing on the phone.

--------------------------------------------------------------------------------------------------------------------------------
EDIT
30mm - 2.80 #'s (15.5 with the 6ul....not bad considering the 16x9.5 spinwerkes were going to be 16.5#'s)
19mm - 2.05 #'s (14.75 with the 6ul)
https://www.miataturbo.net/forum/t33438-13/

Last edited by Cspence; 03-06-2010 at 12:31 PM.
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Old 02-09-2010, 07:41 PM   #8
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Arp-100-7708 wheel stud kit

for a camaro or something, but its cheaper than the miata ones.
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Old 03-06-2010, 12:10 PM   #9
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Bringing this back to life... on the topic of spacers, I'm a douch when it comes to this... I've got some second hand fiberglass flares seen here (type 1 Autokonexion??) both on the front and rear.

[IMG][/IMG]

What appx size spacers will I need F&R? The biggest rims I'll have are the 9" 6ULs with the 225 NT01s. I can take a guess - 20mm? - but I'm wrong most of the time. All I've found so far are pics to go by...
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Old 03-06-2010, 12:18 PM   #10
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Originally Posted by GeneSplicer View Post
Bringing this back to life... on the topic of spacers, I'm a douch when it comes to this... I've got some second hand fiberglass flares seen here (type 1 Autokonexion??) both on the front and rear.

[IMG][/IMG]

What appx size spacers will I need F&R? The biggest rims I'll have are the 9" 6ULs with the 225 NT01s. I can take a guess - 20mm? - but I'm wrong most of the time. All I've found so far are pics to go by...
So you will be running the 6ul 9"? Just asking because you need to know the offset of the wheels you'll be running.....and if its the 6ul 9 then you know its +36....Now how much clearance you got over stock body work with those flares? You can run the 6ul's under stock body work with a roll and a pull from what I've read, so you'll basically need a spacer the same size as what you have for clearance with these flares. If you want to be exact, run a straight edge from the edge of your flare to the ground, then measure the distance to your hub face. The front spacing on the 6ul 9 should be about 3.58" (hub face to front edge of rim) so if you measure 4.5" from the hub face to the edge of the flare you know you need between a 20-25mm spacer to be flush.... In my case with the Tuckin99's I went with a 30mm spacers but I still won't be 100% flush....I made compromises since I didn't want to pony up money for keizer wheels and I didn't want to run a 2" spacer
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Old 03-06-2010, 12:44 PM   #11
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The 6Uls will be my primary, but I've also got a set ot K1 Kosie and some Drags... bot 15x7 with a +38 offset. I removed as much fender material I could and still have fender support... so basically 1" from the dashed outer edge of the flare... then hammered the crap out of the inner liner up... shoot, a pic is a million words...
[IMG][/IMG]

When I get the 6Uls I'll try to take measurements.... since the flares don't go all the way to the base, they don't have to stick out to the upper flare lip... but what's best for track is what I'm after.
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Old 03-06-2010, 12:52 PM   #12
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Quote:
Originally Posted by GeneSplicer View Post
The 6Uls will be my primary, but I've also got a set ot K1 Kosie and some Drags... bot 15x7 with a +38 offset. I removed as much fender material I could and still have fender support... so basically 1" from the dashed outer edge of the flare... then hammered the crap out of the inner liner up... shoot, a pic is a million words...
[IMG][/IMG]

When I get the 6Uls I'll try to take measurements.... since the flares don't go all the way to the base, they don't have to stick out to the upper flare lip... but what's best for track is what I'm after.
That I can't answer for ya since I dont have any track experience....but from what I've read, the answer to that would be to run no spacer with the 6ul. This is coming from people that believe that the wider track width (a positive) the spacer would give you, the stresses it induces by having the wheel located further out away from the hub would out weigh benifits....is this true? I have no idea.... Cant wait to see those 6uls on the car!
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