Threadlock and torque specs 1

[SEBASTIANOFA]

Does the use of threadlocker change the tightening torque of the bolts? I would like to use it to seal the thread from moisture and corrosion but if the tightening torques change, it is a problem. I have to use torque-to-yield bolts, for a car subframe and engine mount, this bolts are designed to stretch during the torquing and I need to set them on the correct torque.
The workshop manual says 100nm + 1/4 of a turn for the subframe and 40nm + 1/4 of a turn for the engine mounts

 

[MintJulep]

On October 11 you wrote

I want to make a good and definitive work.

Almost a month later you seem to have made zero progress toward that goal.

In fact, your approach seems to be guessing, and then asking random strangers on the internet what we think about your guess.

Take 20 bolts. Do a direct test. Compare results, adjust the tightening procedures (if necessary) to achieve the same result with Loctite as without.

Had you started that good and definitive work on October 11 you would have had your answer on October 12.