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Straub technologies trunnion torque spec

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Old Dec 28, 2021 | 10:09 PM
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Default Straub technologies trunnion torque spec

Can someone explain to me why straubs trunnion kit with their bolts has you torque the rockers to 29 ft lbs instead of the normal 22 ft lbs like stock ? Id assume its something to do with the provided bolts in the trunnion kit but Im confused to as to why I cant just torque them at 22 ft lbs.
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Old Dec 28, 2021 | 10:40 PM
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If they say 29#/ft, why not just use that spec? Nothing to fear here...
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Old Dec 28, 2021 | 10:55 PM
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Originally Posted by G Atsma
If they say 29#/ft, why not just use that spec? Nothing to fear here...
I guess Im just a bit confused on why its different. Ill torque it to 29 ft lbs but I guess Im just looking for someone to school me on why its higher.
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Old Dec 29, 2021 | 04:16 AM
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Straub has a great reputation for excellent customer. I bet if you contact Straub, he or one of the other employees will explain why the torque spec is different.
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Old Dec 29, 2021 | 06:25 AM
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Originally Posted by Bosshog
I guess Im just a bit confused on why its different. Ill torque it to 29 ft lbs but I guess Im just looking for someone to school me on why its higher.
The common factors that allow you to torque a fastener more is when it is either larger in diameter, higher in material strength, or when the lubricant used has a higher friction factor (oil vs moly).
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Old Dec 29, 2021 | 08:09 AM
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good question - because this sets them apart from the other guys marketing - makes them stand out as special.

Will get you an extra 17HP that plus your K&N filter will give you 50+ more HP.

What a deal!!!!

Real guess is that bolts have a torque range and the higher torque does make them stand out so this thread has brought them attention.

Attention ****** that they are to get there product talked about.

Last edited by Biebs; Dec 30, 2021 at 04:25 PM.
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Old Dec 29, 2021 | 08:31 PM
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I'd guess average torque wrenches probably can't tell the difference between 22 inch pound and 29 inch pound. Probably have to get a digital or Snap On torque wrench if you want accurate.
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Old Dec 29, 2021 | 11:24 PM
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Originally Posted by wannafbody
I'd guess average torque wrenches probably can't tell the difference between 22 FOOT pound and 29 FOOT pound. Probably have to get a digital or Snap On torque wrench if you want accurate.
Fixed it for ya.
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Old Dec 30, 2021 | 11:17 AM
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If they are saying 29, then go with it. It's their bolts and it has something to do with the metallurgy of of their bolts. Based on hot/cold cycles and what's required to maintain torque. They designed them, had them produced and tested. Follow their instructions.
Unlike ARP, I followed their instructions on their headbolts and many different engines and still had them break before even hitting the recommended torque spec.
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Old Dec 30, 2021 | 06:44 PM
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Originally Posted by G Atsma
Fixed it for ya.
Thanks. For some reason I thought the rocker bolts were inch pounds.
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