looking for torque spec on ARP rod bolts with Eagle rods.


From the searching i have done i came out with 37Ft Lbs. havent had a chance to call them due to work... anyone have a link or know?


worst case i can try and call them this week


Thanks
evoisdream

 

hrmm looks like 37 is what im finding out if anyone has information about that being wrong or not enough let me know. not like im running 35psi but i still want it done right for further mods.

 

can we make a torque spec thread/sticky

I need some specs too, but Im sure more members will be needing torque specs too

 

i did 15 lbs then let them set then i went to 25lbs the lets them set for awhile then went to 35lbs and came back the net day and rechecked
did over 300 pass at the track with a aem 2 step set at 17lbs of boost with no probs

 

Come on Evoisdream....I know you have had to have read the threads on this topic before. Do a search on rod bolt stretch and find out why you cant just go with a basic torque value on the ARP rod bolts. You must measure for rod bolt stretch to accurately apply the required clamping force with the ARP fasteners.

Most people that do this report torque values much higher than the 37ft/lbs. It is recommended to assemble the rods and rod caps off the car to measure this. First take a base measurement of your rod bolt, write it down. Install the bolts onto the rod (while in a vice using soft jaws so you do not mar the rods) Measure the bolt until the correct stretch is achieved. There is actually a tool you can by from ARP to do this if you do not own a good set of calipers/inside micrometer. Record the torque value required to reach this stretch and make sure you do it for all rods and keep them in the same postion so you can assemble the engine with the correct torque value.

I think Carrillo had a "how-to" PDF doc on their site regarding this if you want more info.

 

o trust me i had searched and i didnt find what i wanted to know... from everyone i talked to with the eagle / arp setup they were all at about that

 

I know what you mean on the "search" not giving up what you are looking for. This site's search engine is weak.

what were they "all about?"

 

Go to Jegs or Summit and buy a rod bolt stretch guage. Otherwise you might as well just guess. All the ones I have done with really good torque wrenches were not properly stretched. Rod bolts are the #1 failure of rods and stretch is critical.

Also, you need the proper torque for the bolt installed in the rod. There is not one ARP rod bolt but many varieties and the torques vary.