Bolt stretch spec Spool rod L19 3/8 1.6"UHL

[33GTRV]

Bolt stretch spec Spool rod L19 3/8 1.6"UHL

Chasing a stretch spec for these bolts. Cant get them atm and cant get a hold of brad to get them. Anyone here have the specs?

[doo doo]

Yeah bud, they're 0.0065"- 0.007", maximum torque 65ftlbs. R&R (rod manufacturer) list all the torque specs for the arp rod bolts if you can't find them elsewhere. What spool torque them to I don't know but that's the window of stretch from arp. Just measure your tunnels for true at that tension

 

Edited March 6, 2017 by doo doo

[33GTRV]

Yeah. I went with the 6 thou at the start but to get that stretch was over 85ftlbs so i was asking. Spool were not in the slightest helpful with the issue, just a copy paste from arps website was recieved 

[doo doo]

Hmm, odd you're needing that amount of torque to stretch it, I didn't have a problem with the ones I just Installed. I just popped downstairs and checked a 3/8 L19 bolt and 65ftlb pushed it a smidge over 7 thou stretch. I assume you're still using the arp moly lube too? And they are 3/8 and not the larger 7/16 bolts too?  

[doo doo]

Hmm, odd you're needing that amount of torque to stretch it, I didn't have a problem with the ones I just Installed. I just popped downstairs and checked a 3/8 L19 bolt and 65ftlb pushed it a smidge over 7 thou stretch. I assume you're still using the arp moly lube too? And they are 3/8 and not the larger 7/16 bolts too?  

[33GTRV]

Yeah doo doo. Deff the 3/8 fine.pretty odd that its like this. I went and grabbed a new stretch guage just in case and its not the guage. Might be sending a few back to arp by the looks of it