OEM HG FAILURE THREAD
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From: Seattle / Kalifornia
OEM HG FAILURE THREAD
Please note only the facts listed:
OEM HG ONLY!!!!!!!!!
1. ARP, FB or Stock Bolts?
a) If ARP or FB, what torque spec?
b) If ARP or FB, what assembly lube?
c) If ARP or FB, was factory torque sequence followed?
d) If ARP or FB, specify torquing method. Was it re-torqued? What about installation sequence? (example> 33lbs, 66lbs, 95lbs)
2. Boost pressure in (psig) at failure?
PLEASE REFRAIN FROM EXTRA CONVO OTHER THAN DIRECT INFO NEEDED. The intent of this thread is to track what psi head lift occurs with various setups.
OEM HG ONLY!!!!!!!!!
1. ARP, FB or Stock Bolts?
a) If ARP or FB, what torque spec?
b) If ARP or FB, what assembly lube?
c) If ARP or FB, was factory torque sequence followed?
d) If ARP or FB, specify torquing method. Was it re-torqued? What about installation sequence? (example> 33lbs, 66lbs, 95lbs)
2. Boost pressure in (psig) at failure?
PLEASE REFRAIN FROM EXTRA CONVO OTHER THAN DIRECT INFO NEEDED. The intent of this thread is to track what psi head lift occurs with various setups.
Joined: Nov 2007
Posts: 1,384
Likes: 3
Please note only the facts listed:
OEM HG ONLY!!!!!!!!!
1. ARP, FB or Stock Bolts?
a) If ARP or FB, what torque spec?
b) If ARP or FB, what assembly lube?
c) If ARP or FB, was factory torque sequence followed?
d) If ARP or FB, specify torquing method. Was it re-torqued? What about installation sequence? (example> 33lbs, 66lbs, 95lbs)
2. Boost pressure in (psig) at failure?
PLEASE REFRAIN FROM EXTRA CONVO OTHER THAN DIRECT INFO NEEDED. The intent of this thread is to track what psi head lift occurs with various setups.
OEM HG ONLY!!!!!!!!!
1. ARP, FB or Stock Bolts?
a) If ARP or FB, what torque spec?
b) If ARP or FB, what assembly lube?
c) If ARP or FB, was factory torque sequence followed?
d) If ARP or FB, specify torquing method. Was it re-torqued? What about installation sequence? (example> 33lbs, 66lbs, 95lbs)
2. Boost pressure in (psig) at failure?
PLEASE REFRAIN FROM EXTRA CONVO OTHER THAN DIRECT INFO NEEDED. The intent of this thread is to track what psi head lift occurs with various setups.
ARP
Moly lube
Sequence followed by Helms
Screwed into block and slightly tightened with Allen wrench to maybe 5 ft lbs. sprayed stock HG with 3 layers of copper spray. Once head was on I applied moly lube to bolt threads and both sides of washers. Torqued to 15, 30, 60, 90 ft lbs. never retorqued. This lasted at 18 psi 565whp for 1.5 years with countless beatings and 7500 miles without any issue. I then tuned it to 28 psi and I lifted the head.
Last week I installed a new HG without copper spray, same lube process except used ARP ultra torque after watching the video and now all seems okay for now.
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From: Adkins/east side San Antonio
Thread Starter
Registered User
Joined: Dec 2006
Posts: 24,119
Likes: 4
From: Seattle / Kalifornia
Guys, much as all this info is helpful, let's please clean this up:
PLEASE REFRAIN FROM EXTRA CONVO OTHER THAN DIRECT INFO NEEDED. The intent of this thread is to track what psi head lift occurs with various setups.
PLEASE REFRAIN FROM EXTRA CONVO OTHER THAN DIRECT INFO NEEDED. The intent of this thread is to track what psi head lift occurs with various setups.
PLEASE REFRAIN FROM EXTRA CONVO OTHER THAN DIRECT INFO NEEDED. The intent of this thread is to track what psi head lift occurs with various setups.
PLEASE REFRAIN FROM EXTRA CONVO OTHER THAN DIRECT INFO NEEDED. The intent of this thread is to track what psi head lift occurs with various setups.
PLEASE REFRAIN FROM EXTRA CONVO OTHER THAN DIRECT INFO NEEDED. The intent of this thread is to track what psi head lift occurs with various setups.
PLEASE REFRAIN FROM EXTRA CONVO OTHER THAN DIRECT INFO NEEDED. The intent of this thread is to track what psi head lift occurs with various setups.
PLEASE REFRAIN FROM EXTRA CONVO OTHER THAN DIRECT INFO NEEDED. The intent of this thread is to track what psi head lift occurs with various setups.
PLEASE REFRAIN FROM EXTRA CONVO OTHER THAN DIRECT INFO NEEDED. The intent of this thread is to track what psi head lift occurs with various setups.
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