Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Performance and Technical chat

Reply
 
LinkBack Thread Tools Display Modes
Old 03-30-2019, 01:07 PM   #1
Registered User
 
Join Date: Oct 2018
Location: Evergreen, CO
Posts: 23
Wheel stud conversion - sources?

My 2004 Boxster S came with 996 series Carrera wheels and ECS Tuning spacers already on it to accommodate the offset. PO also installed longer lug bolts, but I'm looking to add another 5mm spacer on the rear and convert to lug studs to make wheel swaps easier and to make sure I have plenty of thread engagement for upcoming HPDE & AutoX season.

For those who have done the lug stud conversion, where did you source your parts? I'm looking at Elephant Racing's 5mm spacer shims to go behind the 15mm hubcentric ECS spacers, and I think I need 70mm studs for the rear. Probably need 60-65mm studs for the front.

Grateful for recommendations.

Cheers,
Matt
imhighlander is offline   Reply With Quote
Old 03-30-2019, 01:20 PM   #2
Registered User
 
The Radium King's Avatar
 
Join Date: Apr 2010
Location: Canada
Posts: 2,862
tarett or rennline. they also sell some nice, light (expensive) spacers. pelican even. you may find that it's the same product sold by all three vendors - they tend to share.
The Radium King is offline   Reply With Quote
Old 03-30-2019, 01:29 PM   #3
Racer Boy
 
Racer Boy's Avatar
 
Join Date: Sep 2015
Location: Seattle, WA
Posts: 586
I got mine at ECS Tuning. Excellent quality and the best prices I could find. After that, I bought some eBay spacers, and they are terrible quality compared to the ECS spacers.

Last edited by Racer Boy; 03-30-2019 at 06:02 PM.
Racer Boy is offline   Reply With Quote
Old 03-30-2019, 05:26 PM   #4
Registered User
 
jaykay's Avatar
 
Join Date: Sep 2009
Location: toronto
Posts: 2,270
I like the design of the tarret pieces. I am not sure they will look good though. They incorporate a shoulder which buts up against the rotor hat surface thereby removing a fair amount of the stress concentration that would normally be resolved at the hub thread and stud interface. Less bending stress means a lower probability stud failures.

There is also less direct stress on hub threads as the stud is not jammed into the threads on installation.

I have not used them as yet and wonder about wheel lug hole clearance around these shoulders.

I believe one could polish the bullet nose area of the studs to a gunmetal colour to better match wheels and nuts.
__________________
00 986 S....with a few tweaks
jaykay is offline   Reply With Quote
Old 03-30-2019, 05:37 PM   #5
Registered User
 
Join Date: Dec 2009
Location: Orange County, CA
Posts: 1,213
a side effect of large spacers

is the fact that they would put extra load on the wheel bearings, and those even if they are not too expensive to buy, they are a pain to replace.. :-(
Gilles is offline   Reply With Quote
Old 03-31-2019, 04:21 AM   #6
Registered User
 
WillH's Avatar
 
Join Date: Feb 2015
Location: QC
Posts: 335
I used this company

https://track-studs.myshopify.com

Couple of years now and they’re holding up great.
WillH is offline   Reply With Quote
Old 03-31-2019, 04:40 AM   #7
Registered User
 
jsceash's Avatar
 
Join Date: Aug 2009
Posts: 1,387
Garage
What ever ones you buy I strongly suggest the type with the bullet tips

https://jesseeash.smugmug.com/Suspension/i-Mrwz4rp/A

These came from Rennline I believe they were 45 MM

Last edited by jsceash; 03-31-2019 at 04:53 AM.
jsceash is offline   Reply With Quote
Old 03-31-2019, 06:00 AM   #8
Registered User
 
Join Date: Jul 2005
Location: MA
Posts: 769
Are you planning to stack spacers? If so, I suggest getting a single spacer at the width that you want. One less failure point (wheel->spacer flange->hub vs. wheel->spacer flange->spacer flange->hub). I know H&R makes 20mm+ widths and likely others do too.
__________________
98 Arena Red 986

2010 e61 535 "TTWAGON"
Stroked & Blown is offline   Reply With Quote
Old 03-31-2019, 08:13 AM   #9
Registered User
 
Join Date: Feb 2017
Location: NorCal
Posts: 77
Garage
Quote:
Originally Posted by WillH View Post
I used this company

https://track-studs.myshopify.com

Couple of years now and they’re holding up great.
+1
I think I have 65mm length and they've never given me any worry.
__________________
2001 Arctic Silver Metallic Boxster, #414: PCA-GGR AX12; PCA Zone 7 P14
2015 Tangerine Scream Focus ST
1999 Highlight Silver Metallic Miata (sold)
BrantyB is offline   Reply With Quote
Old 04-01-2019, 11:10 AM   #10
Registered User
 
Join Date: Sep 2014
Posts: 102
https://www.race-studs.com/
specboxCO is offline   Reply With Quote
Old 04-01-2019, 11:19 AM   #11
Registered User
 
steved0x's Avatar
 
Join Date: Dec 2012
Location: FL
Posts: 3,843
Quote:
Originally Posted by specboxCO View Post
That's what I run too, I am running the longest bullet nose, 90mm I think. Highly recommended and no reports of breaking.
steved0x is offline   Reply With Quote
Old 04-02-2019, 11:06 AM   #12
Registered User
 
Lemming's Avatar
 
Join Date: Apr 2016
Location: B'ham, AL
Posts: 219
Quote:
Originally Posted by BrantyB View Post
+1
I think I have 65mm length and they've never given me any worry.
+4. I use these on my spb with no issues, and a good price point.
__________________
Tim
1998 Boxster (daily driver)
1999 Boxster (SPB)
2015 Boxster (For Sale??)
CDI Alabama Region PCA
Lemming is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -8. The time now is 02:35 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page