ARP Main Stud Tourqe 6 Bolt?

[OverboostXS]

What is the tourque spec for ARP main studs on a 6 bolt block?

 

[project_tsi]

I have mine at 65 ft. lbs.

 

[TommyDSM]

I have mine at 65 ft. lbs.

65 ft.lbs for the mains? I thought they were 90 ft.lbs, and torque them in 3 stages... 30, 60, 90...

http://www.dsmtuners.com/forums/showthread.php?t=208800&highlight=Main+Stud+Torque

 

[andymoraitis]

If you re-read Paul's post in that thread, he mentions that ARP tech support recommends 60 lb/ft. on the mains (20/40/60). The head studs can go to 90 and will need to be checked after the first heat cycle.

 

[TommyDSM]

If you re-read Paul's post in that thread, he mentions that ARP tech support recommends 60 lb/ft. on the mains (20/40/60). The head studs can go to 90 and will need to be checked after the first heat cycle.

Crap, got them confused then. I torqued mine to 90 ft lbs. I will need to loosen them and retorque them to correct spec. Would torque it to 90ft lbs. affect it?

 

[andymoraitis]

I'm no machinist, but if a company recommends 60, that's what I'd use. I can't tell you what the ramifications would be, but I'd rather you didn't find out.

Sorry, but at least you can still fix it.

 

[TommyDSM]

I'm no machinist, but if a company recommends 60, that's what I'd use. I can't tell you what the ramifications would be, but I'd rather you didn't find out.

Sorry, but at least you can still fix it.

Haha I hear that.
Thanks!

 

[TommyDSM]

Could over torque the main studs crush the main bearings?

 

[GSTdude06]

The main studs are sopose to be torqued at 80 ft lb's according to THERE SPECS and Mitsubishi's. Not 60ft lb's or 65.

If you have them at 90 then your ok unless you tightened them in the wrong order then you might have a high spot on part of your block.

Me personily have mine at a 100 along with a metal head gasket and I have yet to have a problem.

 

[TommyDSM]

The main studs are sopose to be torqued at 80 ft lb's according to THERE SPECS and Mitsubishi's. Not 60ft lb's or 65.

If you have them at 90 then your ok unless you tightened them in the wrong order then you might have a high spot on part of your block.

Me personily have mine at a 100 along with a metal head gasket and I have yet to have a problem.

I called them today.. they said 60 ft lbs... And told me to toss my studs ### they probalby no good because i tighten them too much...

 

[daren_p]

The main studs are sopose to be torqued at 80 ft lb's according to THERE SPECS and Mitsubishi's. Not 60ft lb's or 65.

If you have them at 90 then your ok unless you tightened them in the wrong order then you might have a high spot on part of your block.

Me personily have mine at a 100 along with a metal head gasket and I have yet to have a problem.

There talking MAINS, your talking HEADS

 

[99gst_racer]

The main studs are sopose to be torqued at 80 ft lb's according to THERE SPECS and Mitsubishi's. Not 60ft lb's or 65.

If you have them at 90 then your ok unless you tightened them in the wrong order then you might have a high spot on part of your block.

Me personily have mine at a 100 along with a metal head gasket and I have yet to have a problem.

You have a MLS head gasket between your main caps and your block? That's pretty custom. Got any pics?

I believe your above advice applies toward headstuds, but this thread is about main studs and the torque values for the mains is less than that of the head.

EDIT: Looks like Daren P. beat me to it.

 

[GSTdude06]

There talking MAINS, your talking HEADS

your right..... my bad read it a lil wrong