Extended studs with stock setup - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

eckoflyte · 04-08-2013, 03:54 AM

Guys, planning on getting ARP extended studs for the front (Have a set of rays wheels which may need a 2-3mm spacer to clear the sprint kit).

If at some point in the future I wish to sell the car and return it to stock, will the OEM lug nuts and stock wheels fit over the extended studs?

RedLeader · 04-08-2013, 03:57 AM

Not likely. The OEM lugs are closed types, so they'll only thread on so far before bottoming out on the stud. with extended studs, that is not likely to be far enough to actually get the wheel tight.

eckoflyte · 04-08-2013, 05:24 AM

fair enough but without any actual measurements i suppose its just speculation. if someone can confirm that would be greatly appreciated.

EarlQHan · 04-08-2013, 05:26 AM

how much longer are the arp studs? oem studs are fairly cheap so you can always press out the arp ones and put in new oem ones.

eckoflyte · 04-08-2013, 05:31 AM

Quote:

Originally Posted by EarlQHan

how much longer are the arp studs? oem studs are fairly cheap so you can always press out the arp ones and put in new oem ones.

It is approximately 1" longer than stock subaru studs for 02+ WRX/Sti according to a website I found. Overall length 3"

Reference: http://www.licmotorsports.com/produc...rxsti_100-7716
@RedLeader is probably right but would like confirmation.

Here is a picture for comparison.

EarlQHan · 04-08-2013, 05:41 AM

oem lug nuts would not fit, but i believe you can get oem length studs for about 1.50 each. if you sell the car and want to use the oem lug nuts, just replace the studs. otherwise get open ended lug nuts, i doubt any second owner would notice/care.

Fizz · 04-08-2013, 05:44 AM

I dont have any measurements either, but if you took a stock 86 and just removed a wheel nut, you'll see that the lenght of oem stud sticking out is pretty much the same as the depth of your oem nut. Now if you imagine the much longer ARP stud there, i'd say no way you're gonna fully tighten your factory wheel using the oem nut. Maybe if you can fit an appropriate sized hub-centric spacer behind the factory wheel it would work. Just my 2c.

Fizz · 04-08-2013, 05:46 AM

Quote:

Originally Posted by EarlQHan

oem lug nuts would not fit, but i believe you can get oem length studs for about 1.50 each. if you sell the car and want to use the oem lug nuts, just replace the studs. otherwise get open ended lug nuts, i doubt any second owner would notice/care.

but you'd need to make sure you get flat faced open-ended nuts, not the concave faced aftermarket ones as these won't fit on the factory wheels.

eckoflyte · 04-08-2013, 05:46 AM

Quote:

Originally Posted by Fizz

I dont have any measurements either, but if you took a stock 86 and just removed a wheel nut, you'll see that the lenght of oem stud sticking out is pretty much the same as the depth of your oem nut. Now if you imagine the much longer ARP stud there, i'd say no way you're gonna fully tighten your factory wheel using the oem nut. Maybe if you can fit an appropriate sized hub-centric spacer behind the factory wheel it would work. Just my 2c.

Thanks mate. You're probably right. Don't plan on running anything over 3mm spacer. Its a consideration at the moment for future BBK install.

Ideally I'd like extended studs with a 3mm hubcentric spacer. But honestly I just hate the idea of spacers altogether.

eckoflyte · 04-08-2013, 05:46 AM

Quote:

Originally Posted by Fizz

but you'd need to make sure you get flat faced open-ended nuts, not the concave faced aftermarket ones as these won't fit on the factory wheels.

The subaru oem wheels use tapered conical seat. So most aftermarket lug nuts will fit.

EarlQHan · 04-08-2013, 05:55 AM

that is correct. oem uses tapered lugs, not acorn

King Tut · 04-08-2013, 03:33 PM

No need to change studs just to run a 2-3mm spacer.

Fizz · 04-08-2013, 09:49 PM

Quote:

Originally Posted by eckoflyte

The subaru oem wheels use tapered conical seat. So most aftermarket lug nuts will fit.

ooh....didnt know that. i'd go get myself some yummy rays lug nuts then...hehe.

Kuzuri · 05-10-2013, 10:13 AM

any update on the rears?

04-08-2013, 03:54 AM	#1
eckoflyte Senior Member Join Date: Jun 2012 Drives: Toyota 86 GTS Location: Sydney Posts: 246 Thanks: 45 Thanked 47 Times in 33 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Extended studs with stock setup Guys, planning on getting ARP extended studs for the front (Have a set of rays wheels which may need a 2-3mm spacer to clear the sprint kit). If at some point in the future I wish to sell the car and return it to stock, will the OEM lug nuts and stock wheels fit over the extended studs?

04-08-2013, 03:33 PM	#12
King Tut NASA SpecE30 Racer Join Date: May 2012 Drives: 2006 Honda S2000 Location: Gulf Breeze, FL Posts: 7,279 Thanks: 607 Thanked 5,759 Times in 3,055 Posts Mentioned: 274 Post(s) Tagged: 10 Thread(s)	No need to change studs just to run a 2-3mm spacer. __________________ - King Tut Street/Track Car: 2006 Honda S2000 TT3 \|\| Race Car: 1987 BMW 325is SpecE30 \|\| Tow Vehicle: 2014 RAM 1500 EcoDiesel Sold Cars: 2012 BMW M3 \|\| 2013 Subaru BRZ \|\| 2012 Porsche Cayman R \|\| 2009 Chevrolet Z06 \|\| 2009 BMW M3 \|\| 2004 BMW M3 \|\| 2004 Nissan 350Z

05-10-2013, 10:13 AM	#14
Kuzuri __(X)__ Join Date: Feb 2012 Drives: '11 Legacy, '89 190E, '78 GS1000 Location: Wisconsin Posts: 958 Thanks: 300 Thanked 697 Times in 332 Posts Mentioned: 24 Post(s) Tagged: 0 Thread(s)	any update on the rears? __________________ IG: @dustin_faulkner

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04-08-2013, 05:24 AM	#3
eckoflyte Senior Member Join Date: Jun 2012 Drives: Toyota 86 GTS Location: Sydney Posts: 246 Thanks: 45 Thanked 47 Times in 33 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	fair enough but without any actual measurements i suppose its just speculation. if someone can confirm that would be greatly appreciated.

04-08-2013, 05:26 AM	#4
EarlQHan Senior Member Join Date: Nov 2012 Drives: Subarus Location: Nowhere Posts: 189 Thanks: 20 Thanked 129 Times in 66 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	how much longer are the arp studs? oem studs are fairly cheap so you can always press out the arp ones and put in new oem ones.

04-08-2013, 05:41 AM	#6
EarlQHan Senior Member Join Date: Nov 2012 Drives: Subarus Location: Nowhere Posts: 189 Thanks: 20 Thanked 129 Times in 66 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	oem lug nuts would not fit, but i believe you can get oem length studs for about 1.50 each. if you sell the car and want to use the oem lug nuts, just replace the studs. otherwise get open ended lug nuts, i doubt any second owner would notice/care.

04-08-2013, 05:44 AM	#7
Fizz Senior Addict Join Date: Jan 2013 Drives: 86 GT Location: Perth, Australia Posts: 1,217 Thanks: 249 Thanked 336 Times in 215 Posts Mentioned: 12 Post(s) Tagged: 0 Thread(s)	I dont have any measurements either, but if you took a stock 86 and just removed a wheel nut, you'll see that the lenght of oem stud sticking out is pretty much the same as the depth of your oem nut. Now if you imagine the much longer ARP stud there, i'd say no way you're gonna fully tighten your factory wheel using the oem nut. Maybe if you can fit an appropriate sized hub-centric spacer behind the factory wheel it would work. Just my 2c.

04-08-2013, 05:55 AM	#11
EarlQHan Senior Member Join Date: Nov 2012 Drives: Subarus Location: Nowhere Posts: 189 Thanks: 20 Thanked 129 Times in 66 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	that is correct. oem uses tapered lugs, not acorn

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