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Author Topic: Torque specs for tunnel panel - installing DDM Backbone  (Read 4933 times)

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Offline numba41

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Torque specs for tunnel panel - installing DDM Backbone
« on: September 23, 2010, 04:05:24 PM »
Anyone know the torque specs for the tunnel panel bolts?  I'm installing the DDM Backbone.  Thanks.
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Offline Helios

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Re: Torque specs for tunnel panel - installing DDM Backbone
« Reply #1 on: September 23, 2010, 04:23:32 PM »
Use blue loctite and torque to 15ft-lbs.
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Offline Sly Bob

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Re: Torque specs for tunnel panel - installing DDM Backbone
« Reply #2 on: September 23, 2010, 04:31:55 PM »
The OEM spec was 11 ft-lbs. There was a discussion some time ago in this thread. I did mine to 11.

http://www.kappaperformance.com/forum/index.php?topic=189.msg11368#msg11368
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Offline TomatoSoup

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Re: Torque specs for tunnel panel - installing DDM Backbone
« Reply #3 on: September 23, 2010, 05:13:23 PM »
Quote from: Sly Bob on September 23, 2010, 04:31:55 PM
The OEM spec was 11 ft-lbs. There was a discussion some time ago in this thread. I did mine to 11.

Yeah.  Basically finger-tight! :lol:
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Offline Kuprito

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Re: Torque specs for tunnel panel - installing DDM Backbone
« Reply #4 on: September 24, 2010, 07:17:24 AM »
I think the backbone should include larger bolts.
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Offline Sol Asylum

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Re: Torque specs for tunnel panel - installing DDM Backbone
« Reply #5 on: September 24, 2010, 11:53:31 PM »
Using longer bolts will not change the torque.
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Offline Kuprito

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Re: Torque specs for tunnel panel - installing DDM Backbone
« Reply #6 on: February 27, 2011, 07:17:21 AM »
1/2" outer the thread (xtreme backbone thick) means less tight...

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Offline Kuprito

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Re: Torque specs for tunnel panel - installing DDM Backbone
« Reply #7 on: February 27, 2011, 07:34:41 AM »


3 year old drawing...
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Offline elff

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Re: Torque specs for tunnel panel - installing DDM Backbone
« Reply #8 on: February 27, 2011, 11:10:31 AM »
Does that picture end with the kid telling the pilot to
NOT F-UP the landing?
:)
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Offline Dave@DDMworks

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Re: Torque specs for tunnel panel - installing DDM Backbone
« Reply #9 on: February 27, 2011, 11:49:55 AM »
Quote from: Kuprito on February 27, 2011, 07:17:21 AM
1/2" outer the thread (xtreme backbone thick) means less tight...



The 1/2" version does come with longer bolts :)

The 3/8" and 1/4" version do not.

The stock bolts have a little over 1" of thread to them, so with the 1/4" backbone you are engaging 3/4", with the 3/8" version you are engaging 5/8". The standard is to engage 1.5 times the width of the bolt, so since it is a 8mm bolt, you would want to engage atleast 12mm, or roughly 1/2". Since the 1/2" backbone would put it right at that limit we give longer bolts, but the other 2 thickness backbones exceed the standard.

Hope that helps,
Dave
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Offline Helios

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Re: Torque specs for tunnel panel - installing DDM Backbone
« Reply #10 on: February 27, 2011, 12:57:38 PM »
We have been edumatcated (ED-yoo-muh-kated).  :lol:
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Offline spider

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Re: Torque specs for tunnel panel - installing DDM Backbone
« Reply #11 on: February 27, 2011, 01:06:51 PM »

They will loosen after a while at 11 ftlbs with the thicker plates. So add some blue locktite rather than over torquing.
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Offline Kuprito

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Re: Torque specs for tunnel panel - installing DDM Backbone
« Reply #12 on: February 27, 2011, 02:41:08 PM »
Stock bolts are 8mm thread and 13mm socket?

Which thread is? m8x ?
« Last Edit: February 27, 2011, 02:45:16 PM by Kuprito »
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Offline Kuprito

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Re: Torque specs for tunnel panel - installing DDM Backbone
« Reply #13 on: February 27, 2011, 02:54:41 PM »
M8 x 1.25 right?
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Solo + Magnaflow 3" exhaust
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Rotora 4p front
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