3mm spacer on track, lug nut had almost 8 turns - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

SmoothIsSlow · 08-08-2019, 02:30 AM

Hi all,

I put on my 225 45R17 on 17x8 +45mm wheels. My front have -2.4* from camber bolts.

Unfortunately, with these SX2s that I put on today, there was only about one credit card worth of clearance (1mm) between the tire and the spring perch. I bought 3mm hubcentric stancemagic spacers expecting this as a possible issue.

Should I run my two track days this weekend with the spacers (the lug nuts had 7 3/4 of turns)? It’s too late to schedule for an alignment if I were to bring down the camber at home.

Another option is to run my old 215 PS4Ses, I wanted to stop tracking on them because the shoulders were getting murdered...

ZDan · 08-08-2019, 02:42 AM

I consider 6 full turns a safe minimum. I'd say you are ok at 7.75 turns. Check torque every time out.

i8ur911 · 08-08-2019, 08:29 AM

Agree with Dan......you should be all good.

FYI, don't check torque when wheels are hot, but check it a couple minutes before heading out that session.

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steverife · 08-08-2019, 08:48 AM

Surprised you have that little clearance with that camber. SSC folks can get away with running +45's with around -3.

CrowsFeast · 08-08-2019, 09:08 AM

Another chiming in that it sounds like a safe amount of engagement.

Tokay444 · 08-08-2019, 09:20 AM

1.5xD minimum thread engagement.

SmoothIsSlow · 08-08-2019, 10:28 AM

Quote:

Originally Posted by Tokay444

1.5xD minimum thread engagement.

Sorry, what is D in this case? Diameter of the studs?

SmoothIsSlow · 08-08-2019, 10:29 AM

Quote:

Originally Posted by steverife

Surprised you have that little clearance with that camber. SSC folks can get away with running +45's with around -3.

I am on stock Performance package sachs. I had about 4mm with 225 Sottozero IIIs that we’re previously mounted on the exact same wheels. I am thinking the SX2s are just wider?

SmoothIsSlow · 08-08-2019, 10:31 AM

Quote:

Originally Posted by i8ur911

Agree with Dan......you should be all good.

FYI, don't check torque when wheels are hot, but check it a couple minutes before heading out that session.

Sent from my Pixel 3 using Tapatalk

Thanks! Would everything seem too lose when the wheels are hot? Or the opposite?

Tokay444 · 08-08-2019, 10:36 AM

Quote:

Originally Posted by SmoothIsSlow

Sorry, what is D in this case? Diameter of the studs?

D is what it always is. Diameter.

i8ur911 · 08-08-2019, 10:55 AM

Quote:

Originally Posted by SmoothIsSlow

Thanks! Would everything seem too lose when the wheels are hot? Or the opposite?

The hotter the component, the more it stretches.

You only want to torque your wheels when they're "cold". I've seen too many people come right off the track and grab their torque wrench to start torquing wheels. Bad news. That's how you weaken components or snap studs.

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strat61caster · 08-08-2019, 11:43 AM

Quote:

Originally Posted by steverife

Surprised you have that little clearance with that camber. SSC folks can get away with running +45's with around -3.

Most are spacing out to the max +40 to hit -3 degrees.

ZDan · 08-08-2019, 12:51 PM

Quote:

Originally Posted by SmoothIsSlow

Thanks! Would everything seem too lose when the wheels are hot? Or the opposite?

Quote:

Originally Posted by i8ur911

You only want to torque your wheels when they're "cold". I've seen too many people come right off the track and grab their torque wrench to start torquing wheels. Bad news. That's how you weaken components or snap studs.

What he said ^^^

Check a few minutes *before* going out, don't torque them hot, right off the track!

finch1750 · 08-08-2019, 01:05 PM

Quoted from the McGard website

"Note: When installing wheel lock nuts and lug nuts, verify that it is the correct thread size, seating surface type (cone seat, radius seat, shank) and style as recommended by the wheel manufacturer. Minimum thread engagement must be equal to the thread diameter of the wheel stud. Example: M12 x 1.5 nut requires a minimum of 12mm (.472”) of thread engagement."

08-08-2019, 02:30 AM	#1
SmoothIsSlow Member Join Date: May 2019 Drives: BRZ Location: WA Posts: 58 Thanks: 32 Thanked 14 Times in 12 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	3mm spacer on track, lug nut had almost 8 turns Hi all, I put on my 225 45R17 on 17x8 +45mm wheels. My front have -2.4* from camber bolts. Unfortunately, with these SX2s that I put on today, there was only about one credit card worth of clearance (1mm) between the tire and the spring perch. I bought 3mm hubcentric stancemagic spacers expecting this as a possible issue. Should I run my two track days this weekend with the spacers (the lug nuts had 7 3/4 of turns)? It’s too late to schedule for an alignment if I were to bring down the camber at home. Another option is to run my old 215 PS4Ses, I wanted to stop tracking on them because the shoulders were getting murdered...

08-08-2019, 01:05 PM	#14
finch1750 Undisputed El Presidente Join Date: Jun 2012 Drives: Zenki 37J ZN6 Location: Stockton, CA Posts: 11,593 Thanks: 9,403 Thanked 9,411 Times in 5,270 Posts Mentioned: 374 Post(s) Tagged: 33 Thread(s)	Quoted from the McGard website "Note: When installing wheel lock nuts and lug nuts, verify that it is the correct thread size, seating surface type (cone seat, radius seat, shank) and style as recommended by the wheel manufacturer. Minimum thread engagement must be equal to the thread diameter of the wheel stud. Example: M12 x 1.5 nut requires a minimum of 12mm (.472”) of thread engagement." __________________ "Just like how a strut bar somehow enables you to corner 20MPH faster around a cloverleaf on-ramp, when the reality is, you can do it already but you just don't have to balls to do it." - CSG David

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08-08-2019, 02:42 AM	#2
ZDan Senior Member Join Date: May 2011 Drives: '23 BRZ Location: Providence, RI Posts: 4,672 Thanks: 1,439 Thanked 4,011 Times in 2,097 Posts Mentioned: 85 Post(s) Tagged: 0 Thread(s)	I consider 6 full turns a safe minimum. I'd say you are ok at 7.75 turns. Check torque every time out.

08-08-2019, 08:48 AM	#4
steverife Senior Member Join Date: Feb 2018 Drives: 2016 Scion FRS Location: Knoxville, TN Posts: 478 Thanks: 62 Thanked 291 Times in 192 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Surprised you have that little clearance with that camber. SSC folks can get away with running +45's with around -3.

08-08-2019, 09:08 AM	#5
CrowsFeast Senior Member Join Date: Jun 2019 Drives: 2013 BRZ Sport-Tech Location: Toronto Posts: 355 Thanks: 184 Thanked 179 Times in 121 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Another chiming in that it sounds like a safe amount of engagement.

08-08-2019, 09:20 AM	#6
Tokay444 Banned Join Date: Feb 2016 Drives: 17 White 860. RCE Tarmac 2. RE-71RS Location: Not Canada Posts: 1,752 Thanks: 938 Thanked 1,024 Times in 581 Posts Mentioned: 10 Post(s) Tagged: 0 Thread(s)	1.5xD minimum thread engagement.

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