04-22-2024, 06:35 PM | #1 |
Drives: 2022 Camaro 2SS 1LE Join Date: Jan 2024
Location: East Coast USA
Posts: 10
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Track day - Lug nut question
Hello!
Just got done with my first track day in the Camaro, and I absolutely love it. This is my 5th event total, but first with this car, and it is crazy how capable it is. Very, very happy with it! No problems or issues thankfully, but I am encountering something I've not on my previous cars: my lugs need to be tightened before every session. I am on a OEM setup (minus Castrol SRF fluid), and am torquing the lugs to 140 lb ft with a 150 lb ft 1/2" inch drive torque wrench when the car is cooled down, so aka, right before a session. Surprisingly, several lugs around the car need to be tightened every single time, but especially my front left tire. My previous cars maybe has 1 or 2 that needed to be tightened over the course of a day , but never this many this frequently Basically my question is - is this normal for the Camaro, and something you guys experience as well? Or, do I need to get a bigger torque wrench for better accuracy? I know torque wrenches typically aren't accurate at the low end of their range, but I wasn't sure if that also applied to the top end. Or is something else going on? Thanks! Looking forward to day 2 tomorrow Last edited by italia366; 04-22-2024 at 07:28 PM. |
04-22-2024, 06:41 PM | #2 |
Drives: 2018 Camaro 1SS 1LE Join Date: Sep 2018
Location: Front Range, CO
Posts: 1,977
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I had that issue with some aftermarket lugs, haven't tried the oem lugs on track.
I installed longer MSI studs up front and got a set of MSI lug nuts, they've been great. Super high quality, well worth it for a track car.
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04-23-2024, 09:24 AM | #3 |
Drives: 2022 Camaro 2SS 1LE Join Date: Jan 2024
Location: East Coast USA
Posts: 10
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Figured out it was an issue with my wrench, thankfully the car is fine!
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04-23-2024, 11:39 AM | #4 |
Drives: 17 SW 1LE Join Date: Jun 2017
Location: ROCKVILLE MD
Posts: 295
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Do not toque a hot car if you can avoid it. Once everything is heated up and you retorque, you are stretching the stud out and weakening/reducing its ability to return to size when you remove the nuts.
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04-23-2024, 03:22 PM | #5 |
Drives: 2017 Blue Camaro 1SS 1LE with PDR Join Date: Sep 2018
Location: Houston, TX
Posts: 1,004
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Not normal. I usually check torque before the first session (sometimes at home) with my 1/2" drive Harbor Freight torque wrench and often not again until after the event and I've have never had a single lug nut loosen significantly by itself.
I believe using aftermarket lug nuts with a smaller conical seating surface area than the stock lug nuts while using stock wheels could cause loosening while driving. |
04-23-2024, 05:33 PM | #6 | |
Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017
Location: East Tennessee
Posts: 12,025
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Quote:
However, I do use and recommend a bigger torque wrench on these lug nuts. Mine has a 25 to 250 lb-ft range, because I don't think these wrenches are accurate enough at either end of their load range (heck, they may be off by a couple percent even in the middle). In addition, a larger wrench requires less effort to reach the desired torque, so human errors such as overtorqueing or tightening when the wrench is stationary can be minimized as well.
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04-23-2024, 06:36 PM | #7 |
Drives: 2014 Ford F-350 Join Date: Sep 2023
Location: Kansas
Posts: 66
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Just another data point, my stock lug nuts haven’t backed off at all, from tracking. I don’t tighten after the first session, but I do check them at the start of every day (track days).
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04-23-2024, 06:59 PM | #8 |
Drives: 2004 BMW 330CI, 2022 1SS 1LE Join Date: Dec 2021
Location: NC
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Glad you figured it out, definitely not normal.
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05-09-2024, 06:01 AM | #9 |
Drives: 2008 Audi RS4 Join Date: Jan 2020
Location: Philadelphia, PA
Posts: 38
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UOM?
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05-09-2024, 08:40 AM | #10 |
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On track I run open end Ford Racing lug nuts - fairly inexpensive, well made and do not have overcap.
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05-09-2024, 10:29 AM | #11 |
Drives: 2018 Camaro 1SS 1LE Join Date: Aug 2014
Location: Virginia
Posts: 319
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Confirming that these lugs call for 140 ft/lbs?
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05-09-2024, 12:11 PM | #12 |
Faster!!!
Drives: 2020 Camaro 1SS 1LE Join Date: Mar 2020
Location: Long Island NY
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05-09-2024, 08:02 PM | #13 |
Drives: 2020 Chevy Camaro ZL1 Join Date: Apr 2023
Location: Calgary Canada
Posts: 1,629
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A certified calibrated torque wrench is always good practice, especially working on the smaller bolts with aluminum. accuracy is very important
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05-10-2024, 11:33 AM | #14 |
Drives: 2018 Camaro 1SS 1LE Join Date: Aug 2014
Location: Virginia
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