Notices
RX-8 Racing Want to discuss autocrossing, road-racing and drag racing the RX-8? Bring it here. This is NOT a kills/street racing forum.

Longer ARP wheel studs on front?

Old 07-11-2018, 10:00 AM
  #1  
Registered
Thread Starter
 
Mr. Pockets's Avatar
 
Join Date: Mar 2008
Location: Champaign, IL
Posts: 485
Received 8 Likes on 7 Posts
Longer ARP wheel studs on front?

Hey everybody,

I ordered 3.25" ARP wheel studs from Mazdaspeed awhile ago. They're ARP PN 100-7713. Has anybody installed them on the front hubs? The splines don't match, and Mazdaspeed's answer is, 'yeah, just jam 'em in there.' They claim the studs are designed to just push their way in there.

That makes me a little nervous. I like stuff to fit together nicely and not require hydraulic pressure to force their way in.
Mr. Pockets is offline  
Old 07-11-2018, 11:54 AM
  #2  
Not ******
iTrader: (1)
 
John V's Avatar
 
Join Date: Jan 2004
Posts: 701
Likes: 0
Received 9 Likes on 9 Posts
I've always used a hydraulic press to push in wheel studs, including the long ARPs on both ends of my RX-8.
John V is offline  
Old 07-11-2018, 04:20 PM
  #3  
Registered
iTrader: (2)
 
Join Date: Jun 2011
Location: Destin
Posts: 307
Likes: 0
Received 2 Likes on 2 Posts
Yeah... wheel studs typically need to be pressed in, and out.
roflcopter is offline  
Old 07-11-2018, 05:47 PM
  #4  
Registered
 
Join Date: Jul 2018
Location: KS
Posts: 46
Received 3 Likes on 2 Posts
Agreed, on any car I've ever worked on you have to press in/out the wheel studs. Can be intimidating at first but once you do it a few times it's easy. HarborFreight has a great press that comes in handy for everything from wheel studs, bushings, wheel bearings oh and making a tombstone for a Miata (turns out the base platform width is identical to the tombstone mounting width!)
GeicoGecko is offline  
Old 07-11-2018, 07:23 PM
  #5  
Registered
Thread Starter
 
Mr. Pockets's Avatar
 
Join Date: Mar 2008
Location: Champaign, IL
Posts: 485
Received 8 Likes on 7 Posts
Thank you for your responses. I'm well aware that studs are pressed in.

What concerns me is that the splines on the studs don't match the splines in the holes on the hubs. To me it's like cross-threading a nut on purpose.
Mr. Pockets is offline  
Old 07-11-2018, 08:23 PM
  #6  
Registered
iTrader: (2)
 
Join Date: Jun 2011
Location: Destin
Posts: 307
Likes: 0
Received 2 Likes on 2 Posts
If they had the same splines as the old ones then the press fit wouldn't be very tight because the hole is already expanded a bit to fit the previous ones. I wouldn't worry about the splines being different.
roflcopter is offline  
The following users liked this post:
Mr. Pockets (07-12-2018)
Old 06-02-2019, 07:53 AM
  #7  
Koi no Ousama
iTrader: (25)
 
TeamRX8's Avatar
 
Join Date: Apr 2005
Posts: 20,899
Received 327 Likes on 265 Posts
I had the correctly sized ARP studs posted on the forum already, ARP #100-7719 for both front & rear which is listed for the NB Miata. These are only 2.75” OAL if that matters.

and no, they won’t be a looser fit, just easier to get in if you don’t have a real press ...

.

Last edited by TeamRX8; 06-02-2019 at 07:58 AM.
TeamRX8 is online now  
The following users liked this post:
Mr. Pockets (06-03-2019)
Old 06-03-2019, 02:39 PM
  #8  
Registered
Thread Starter
 
Mr. Pockets's Avatar
 
Join Date: Mar 2008
Location: Champaign, IL
Posts: 485
Received 8 Likes on 7 Posts
The ones I posted about originally seem to be working just fine.

Also, I bought a press finally.

Originally Posted by TeamRX8 View Post
I had the correctly sized ARP studs posted on the forum already, ARP #100-7719 for both front & rear which is listed for the NB Miata. These are only 2.75Ē OAL if that matters.

and no, they wonít be a looser fit, just easier to get in if you donít have a real press ...

.
Mr. Pockets is offline  
Old 06-03-2019, 05:09 PM
  #9  
Koi no Ousama
iTrader: (25)
 
TeamRX8's Avatar
 
Join Date: Apr 2005
Posts: 20,899
Received 327 Likes on 265 Posts
Reminds of that scene from Avatar ...
TeamRX8 is online now  
Old 06-13-2019, 02:57 PM
  #10  
Registered
 
trackjunkie's Avatar
 
Join Date: Oct 2017
Location: South Central PA
Posts: 329
Received 11 Likes on 10 Posts
Originally Posted by Mr. Pockets View Post
The ones I posted about originally seem to be working just fine.

Also, I bought a press finally.
worked fine until the one lug nut decided to seize itself onto the stud and then the stud backed out in the back. too soon?
trackjunkie is offline  
Old 06-13-2019, 02:59 PM
  #11  
Registered
 
trackjunkie's Avatar
 
Join Date: Oct 2017
Location: South Central PA
Posts: 329
Received 11 Likes on 10 Posts
the part number that Mark posted is what i used. worked out great.
trackjunkie is offline  
Old 06-14-2019, 09:10 AM
  #12  
Registered
Thread Starter
 
Mr. Pockets's Avatar
 
Join Date: Mar 2008
Location: Champaign, IL
Posts: 485
Received 8 Likes on 7 Posts
Originally Posted by trackjunkie View Post
worked fine until the one lug nut decided to seize itself onto the stud and then the stud backed out in the back. too soon?
This thread is about the front studs, not the rear.

And I would blame the lug nuts, not the studs. I switched to 949 aluminum nuts, and they've been a big improvement.
Mr. Pockets is offline  
Old 06-14-2019, 10:19 AM
  #13  
Registered
 
trackjunkie's Avatar
 
Join Date: Oct 2017
Location: South Central PA
Posts: 329
Received 11 Likes on 10 Posts
you're brave running aluminum lug nuts. i've seen aluminum lug nuts completely rip off the studs on two different cars. i guess they're fine if you replace them often.
trackjunkie is offline  
Old 06-14-2019, 06:25 PM
  #14  
Koi no Ousama
iTrader: (25)
 
TeamRX8's Avatar
 
Join Date: Apr 2005
Posts: 20,899
Received 327 Likes on 265 Posts
Forged should be fine, but it might depend what brand is used and how effectively they get torqued. I’ve seen cars with ferrous lugs lose wheels too.
TeamRX8 is online now  
Old 06-15-2019, 07:35 PM
  #15  
Registered
 
trackjunkie's Avatar
 
Join Date: Oct 2017
Location: South Central PA
Posts: 329
Received 11 Likes on 10 Posts
the Project Kics lug nuts on my car now are over 10 years old. ran them on my S2k for three years, then sold the car and swap them over to the evo for 7 years. then sold the evo and swap them over to the RX8. best lug nuts i've ever used, i mean the only lug nuts i have used. lol

i cant count how many times they have been torqued but typical race weekend, wheels are swapped or rotated at least 2-3 times. i use a little anti seize and torque them lower, same seat pressure with anti seize.

Last edited by trackjunkie; 06-15-2019 at 07:39 PM.
trackjunkie is offline  
Old 06-16-2019, 09:32 AM
  #16  
Registered
Thread Starter
 
Mr. Pockets's Avatar
 
Join Date: Mar 2008
Location: Champaign, IL
Posts: 485
Received 8 Likes on 7 Posts
Originally Posted by trackjunkie View Post
the Project Kics lug nuts on my car now are over 10 years old. ran them on my S2k for three years, then sold the car and swap them over to the evo for 7 years. then sold the evo and swap them over to the RX8. best lug nuts i've ever used, i mean the only lug nuts i have used. lol

i cant count how many times they have been torqued but typical race weekend, wheels are swapped or rotated at least 2-3 times. i use a little anti seize and torque them lower, same seat pressure with anti seize.
You had an S2000...and then an RX8?

What...what would you say is wrong with you?
Mr. Pockets is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
9krpmrx8
RX-8 Parts For Sale/Wanted
2
04-18-2018 09:16 AM
GK1707
RX-8 Parts For Sale/Wanted
14
03-02-2015 08:22 PM
Munchy
Series I Do It Yourself Forum
21
10-25-2014 09:09 PM
legokcen
Series I Do It Yourself Forum
18
03-26-2010 09:08 AM
spike.spiegel
Series I Tech Garage
1
03-14-2008 11:41 PM


Thread Tools
Search this Thread
Rate This Thread
Rate This Thread:
You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: Longer ARP wheel studs on front?


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.