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Chain fence eating turbo
 
Join Date: Dec 2008
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ARP rod bolt stretch DIMENSION for a 3.2

Can't find my datasheet for my 3.2 for the proper rod bolt stretch.

Rods are hung, ready for bolt stretch.

Anyone know?

TIA!!!!
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Cory - '87 C3.2 (3.4, stock 3.2 heads, cams, intake, with 75mm Mustang TB) Guards/Blk - turbos new to old 1). Borg Warner S366 (66mm comp/73mm turb/0.91 T4 divided ~1.4 bar), 2). Holset HX40 8-blade (58mm/"P" trim 0.84 T4 divided 1.4 bar), 1/4 mile 12.02 @ 129 MPH (street tires), 3). Turbonetics 60-1 HiFi (60mm/"P" trim 0.81 A/R T4 open 1.2 bar), 431whp - MegaSquirt II/EDIS ignition/80lb inj
Old 11-17-2017, 07:29 AM
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Check this thread

from the thread "As all that I was checking was the required torque to get the .0100 - .0105 stretch"
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Old 11-17-2017, 08:09 AM
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Obviously check with ARP and the part number etc. I guess you can torque if you don't have the stretch gauge
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http://forums.pelicanparts.com/porsche-911-technical-forum/878569-born-75-me-my-new-911s.html

Last edited by 75 911s; 11-17-2017 at 01:44 PM.. Reason: Removed incorrect doc
Old 11-17-2017, 08:15 AM
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Chain fence eating turbo
 
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Thank you Duane!
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Cory - '87 C3.2 (3.4, stock 3.2 heads, cams, intake, with 75mm Mustang TB) Guards/Blk - turbos new to old 1). Borg Warner S366 (66mm comp/73mm turb/0.91 T4 divided ~1.4 bar), 2). Holset HX40 8-blade (58mm/"P" trim 0.84 T4 divided 1.4 bar), 1/4 mile 12.02 @ 129 MPH (street tires), 3). Turbonetics 60-1 HiFi (60mm/"P" trim 0.81 A/R T4 open 1.2 bar), 431whp - MegaSquirt II/EDIS ignition/80lb inj
Old 11-17-2017, 08:57 AM
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That stretch spec is for 10mm bolts. You should have 9mm no?
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Old 11-17-2017, 09:36 AM
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Quote:
Originally Posted by BURN-BROS View Post
That stretch spec is for 10mm bolts. You should have 9mm no?
Yes, the 3.2 should be 9mm. Here is the correct doc for the 9mm bolts:

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Old 11-17-2017, 11:16 AM
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Chain fence eating turbo
 
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That's what I remember. Thank you!!!!!
Old 11-17-2017, 11:51 AM
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Chain fence eating turbo
 
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I went .01025 to split the difference accounting for error.
Old 11-17-2017, 01:45 PM
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Quote:
Originally Posted by Tippy View Post
I went .01025 to split the difference accounting for error.
What are you using to measure to .00005"?
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Old 11-18-2017, 05:07 PM
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Chain fence eating turbo
 
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Quote:
Originally Posted by Trackrash View Post
What are you using to measure to .00005"?
My eyeball.

Quarter of the way between 0.010" hash mark and the hash mark after.
Old 11-18-2017, 05:34 PM
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