Pelican Parts
Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   Pelican Parts Forums > Porsche Forums > Porsche Autocross and Track Racing


Reply
 
LinkBack Thread Tools Rating: Thread Rating: 2 votes, 1.00 average.
Author
Thread Post New Thread    Reply
Registered
 
GUMBALL's Avatar
 
Join Date: Jul 2004
Location: Beaverton, Oregon
Posts: 55
Garage
Quote:
Originally Posted by winders View Post
Maybe all the fasteners are specified to be installed "wet" on an Indy car. That is not the case with a Porsche street car setup for racing.
A racecar is a racecar is a racecar . . . . . .

Old 02-16-2021, 08:00 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #41 (permalink)
Registered
 
Join Date: Mar 2019
Posts: 630
Quote:
Originally Posted by Walt Fricke View Post
... But how do NASCAR with their glued on nuts approach stud lubrication? ...
No lube on wheel studs. Minimum torque is 40 ft lbs, but that rule changed, then changed back. Spec for our 5/8-11 studs was 140 ft lbs, the minimum torque rule was only to keep tire changers from saving fractions of a second by letting the gun hammer once or twice instead of enough to fully torque the lug nut.

As you know, we glued our lug nuts on with weatherstrip adhesive for green flag pit stops. Lug nuts were 1" and used a special socket that allows engaging with the gun at full speed, with a spring to push out the lug nut. Teams could use double ended lug nuts (the tapered cone on both sides) to eliminate the chance of putting it on backward.

But this will all become a moot point as nascar said they will switch to one big nut for wheel attachment this year.
Old 02-16-2021, 08:41 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #42 (permalink)
Registered
 
Join Date: Dec 2019
Location: Monterey, CA
Posts: 20
Quote:
Originally Posted by dannobee View Post
No lube on wheel studs. Minimum torque is 40 ft lbs, but that rule changed, then changed back. Spec for our 5/8-11 studs was 140 ft lbs, the minimum torque rule was only to keep tire changers from saving fractions of a second by letting the gun hammer once or twice instead of enough to fully torque the lug nut.

As you know, we glued our lug nuts on with weatherstrip adhesive for green flag pit stops. Lug nuts were 1" and used a special socket that allows engaging with the gun at full speed, with a spring to push out the lug nut. Teams could use double ended lug nuts (the tapered cone on both sides) to eliminate the chance of putting it on backward.

But this will all become a moot point as nascar said they will switch to one big nut for wheel attachment this year.
MSI studs/nuts for your team?
Old 02-16-2021, 08:47 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #43 (permalink)
Registered
 
Join Date: Mar 2019
Posts: 630
Yes. Way back when it was ARP, then gradually migrated to MSI.
Old 02-19-2021, 08:09 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #44 (permalink)
Registered
 
Walt Fricke's Avatar
 
Join Date: May 2004
Location: Boulder, Colorado
Posts: 6,481
Dan - since all I "know" about NASCAR is pretty much limited to TV commentators, I appreciate your contributions here. I've tried to find NASCAR's rules on line, but haven't been able to. Working with PCA's Club Racing rules has me always a bit curious about other series (especially professional ones) with regard to safety rules.

I have wondered how glued nuts would work, but elastic weatherstrip adhesive answers that? Stretches enough to keep the nut on the bullet ended stud?

But center locks in NASCAR? First EFI, then this? What's next - IRS (like every production sedan nowadays)?
Old 02-19-2021, 01:55 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #45 (permalink)
Registered
 
safe's Avatar
 
Join Date: Feb 2004
Location: Sweden
Posts: 3,743
Garage
Quote:
Originally Posted by 962porsche View Post
when it comes to putting any lube on a wheel stud , nut or bolt this is a DO NOT EVER DO THING!
1st is all auto makers give you a torque spec of a dry clean stud. lubing a stud nut or bolt will give you a incorrect torque and lead to an over torqued wheel fastener!
Obviously you haven't read the Porsche workshop manual. It clearly states that the threads and mating surface between the wheel and nut SHOULD be lubricated and torqued to 130 Nm.
On the newer (996+) Porsches with wheel bolts with an integrated kone-washer the lube should be applied between the the washer and bolt.
__________________
Magnus
911 Silver Targa -77, 3.2 -84 with custom ITBs and EFI. Just works!
911T Coupe -69, 3.6, G50, "RSR", track day. Sorting out issues...
924 -79 rat roddy...
931 -79 under total restoration...
Old 02-26-2021, 02:34 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #46 (permalink)
 
Registered
 
Join Date: Jul 2000
Location: So. Calif.
Posts: 19,566
Porsche TSB:


Name change:
Optimoly HT equivalent ?



A close facsimile seems to be Permatex Copper Anti-Seize.

Sherwood
Old 02-26-2021, 10:45 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #47 (permalink)
Racer
 
winders's Avatar
 
Join Date: Oct 2010
Location: San Martin, CA
Posts: 4,521
Quote:
Originally Posted by 911pcars View Post
A close facsimile seems to be Permatex Copper Anti-Seize.
Except that Permatex Copper Anti-Seize is a grease and certainly changes the torque requirements and Permatex specifically states in their Copper Anti-Seize TDS that it is not for use on lug nut or stud applications.

So, other than that, sure, it's a close facsimile.....

P.S. I have a hard time believing that the Optimoly HT or its replacement does not affect torque requirements regardless of what Porsche says in that bulletin.

__________________
Scott Winders
PCA GT-3R #3

Last edited by winders; 02-26-2021 at 12:27 PM..
Old 02-26-2021, 11:45 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #48 (permalink)
Reply

Thread Tools
Rate This Thread
Rate This Thread:

 


All times are GMT -8. The time now is 02:12 AM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2020 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.