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Old 04-26-2022, 02:26 AM   #1
JTNKTZ
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Default ARP 625+ headstud torque spec?

What should I be torquing these too? Following Subaru sequence I'm assuming?

Running e85, hoping for 500hp

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Old 04-26-2022, 08:42 AM   #2
rtv900
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you should torque them to whatever ARP specs them at
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Old 04-26-2022, 10:10 AM   #3
subydude
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The instructions are in the box with the studs. If not, call ARP and ask. They have the same sequence on their instructions as Subaru, but yes, follow the Subaru patter with the ARP tightening sequence (30/60/final from memory) and torque spec.
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Old 04-27-2022, 06:18 PM   #4
cboggess
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Subaru pattern using ARP lube, 35, 70, 100 is tq.
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Old 04-27-2022, 06:30 PM   #5
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Quote:
Originally Posted by cboggess View Post
Subaru pattern using ARP lube, 35, 70, 100 is tq.
This is what I did.
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Old 04-27-2022, 09:09 PM   #6
undyjr
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Me too. I expect them to perform better than the ARP 2000s I torqued to 70 ft lbs.
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Old 04-28-2022, 01:40 PM   #7
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Quote:
Originally Posted by undyjr View Post
Me too. I expect them to perform better than the ARP 2000s I torqued to 70 ft lbs.
Well that should be no problem. Spec on the arp 2000's is 90 lbs.
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Old 04-29-2022, 12:39 AM   #8
undyjr
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Quote:
Originally Posted by cboggess View Post
Well that should be no problem. Spec on the arp 2000's is 90 lbs.
Tell me about it. I left my fancy digital buzzy/beepy torque wrench in the box this time and used a mechanic buddy's MAC torque wrench. Very satisfying clicks.
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Old 04-29-2022, 10:50 AM   #9
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Quote:
Originally Posted by undyjr View Post
Tell me about it. I left my fancy digital buzzy/beepy torque wrench in the box this time and used a mechanic buddy's MAC torque wrench. Very satisfying clicks.
while I do enjoy the digital there is indeed something very satisfying about the click.
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Old 04-29-2022, 03:51 PM   #10
cnstman
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Old 04-30-2022, 09:55 AM   #11
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You are too kind.

Thought this was Facebook for a minute there with that question.
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Old 05-02-2022, 09:49 AM   #12
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Quote:
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Thought this was Facebook for a minute there with that question.
Now that's funny. I enjoy it on here so much compared to that place.
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