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Top 4G63 Technical 4G63 Tech topic #6815
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Subject: "RE: new setup" Previous topic | Next topic
MFGRacing90GSXMay-18-07 12:32 PM
Member since Oct 14th 2005
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#6827, "RE: new setup"
In response to In response to 7

          

I Know this, However a guy in our team has had 30+ years of experience with cyl heads/ engines. Him, also me, have seen MANY times a ALUMINUM head being damaged do to being over torqued. We have built many engines. we also have many project cars with 14b's to 42R's 10psi to 50psi. I am giving this as advice and experience for you to take however you will.....


Originally posted by RST95eclipse
Originally posted by MFGRacing90GSXARP specs are fine, they have many proven years. Remember you have an ALUMINUM head, there's not need to torque the studs down ANY more than 5ft lbs over spec. When doing so you risk damaging the heads surface. When ARP recommends a torque spec it is usually good to stick with that.
It's been common practice to torque them from 90-100ft/lbs. The 70-75ft/lbs is what OEM calls for. How would you risk damaging the head's surface if you wrench them down in the proper order while working your way up? He's running a lot of boost - causes heads to raise. This isn't a 16g!!


Matt
MFG Racing

http://dsmregistry.com/detail.php?carid=1310

  
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new setup [View all] , kelvinb1, Apr-22-07 06:00 AM
  RE: new setup, RST95eclipse, Apr-24-07 08:11 PM, #1
RE: new setup, kelvinb1, May-03-07 03:49 PM, #2
RE: new setup, MFGRacing90GSX, May-04-07 04:50 AM, #3
      RE: new setup, kelvinb1, May-04-07 05:02 PM, #4
      RE: new setup, MFGRacing90GSX, May-04-07 06:39 PM, #5
           RE: new setup, hookduphatch, May-04-07 09:30 PM, #6
      RE: new setup, RST95eclipse, May-07-07 04:43 PM, #7
           RE: new setup, kelvinb1, May-08-07 05:48 PM, #8
           RE: new setup, hookduphatch, May-09-07 01:37 AM, #9
                RE: new setup, kelvinb1, May-09-07 05:21 PM, #10
                     RE: new setup, kelvinb1, May-17-07 06:12 PM, #11
           RE: new setup, MFGRacing90GSX, May-18-07 12:32 PM #12
                RE: new setup, kelvinb1, May-18-07 05:19 PM, #13
                     RE: new setup, MFGRacing90GSX, May-18-07 05:58 PM, #14
                          RE: new setup, kelvinb1, May-18-07 07:54 PM, #15
                          RE: new setup, MFGRacing90GSX, May-19-07 08:51 AM, #16
                          RE: new setup, Moderatorbullettdsm, May-20-07 01:46 AM, #18
                          RE: new setup, hookduphatch, May-20-07 12:32 AM, #17
                               RE: new setup, kelvinb1, May-22-07 05:08 PM, #19

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