525SC Supercharger Stud nut Torque Value?
#1
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Location: Lexington, KY
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525SC Supercharger Stud nut Torque Value?
Hey All,
Finishing up my top end rebuild and cant find a torque spec for the blower to manifold stud nuts. I keep hearing how critical the torque is on these nuts because of supercharger case distortion but am having my doubts. First of all they are nylock nuts which typically dont have a torque value and secondly there would be no way to get a modern torque wrench in there. Anyway as you can see Im arguing with myself so can anyone chime in please?
Thanks in advance!
Finishing up my top end rebuild and cant find a torque spec for the blower to manifold stud nuts. I keep hearing how critical the torque is on these nuts because of supercharger case distortion but am having my doubts. First of all they are nylock nuts which typically dont have a torque value and secondly there would be no way to get a modern torque wrench in there. Anyway as you can see Im arguing with myself so can anyone chime in please?
Thanks in advance!
#3
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The 177 is sold through Holley. I remember finding the installation manual with torque specs on their website a few years ago.
Yep, still there, see page 3 for instruction:
http://www.holley.com/data/Products/...99R10244-1.pdf
Yep, still there, see page 3 for instruction:
http://www.holley.com/data/Products/...99R10244-1.pdf
Last edited by rdoactive; 02-11-2010 at 02:52 PM.
#4
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Just Called Holley and they gave me the old 10-12 torque number. So I guess I'll go with that. Now if I can just figure how to get a torque wrench in there.....
#5
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On my 250 blower it was 14. Key thing was to go slowly and many times around checking for binding. I had one builder recommend three threads of the bolt with Red loctite.
#6
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It is 10 ft lbs. Make sure to use loctite, either red or blue otherwise they will come loose over time. Also be sure to occasionally check the middle intake manifold to head bolts.
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