Big Hands on Big Streets

[SA125]

I'll use a set as an example, but the question is more of a general strategy type asking how the situation is viewed and played by the posters here.

You sit in a 20-40/40-80 game. You don't know anyone and play a few hands. Then this hand comes up.

UTG limps, next players raises, couple of coldcallers, you call in the BB with 77. Nice pot.

Flop Kc Tc 7d. Ch'd to raiser who bets, SB calls, you c/r, he 3 bets, SB calls 2 more.

For arguements sake resist the temptation to say cap the flop. You just call.

Turn bricks. SB ch's, you donk and he raises again. This point is why I posted. Are any of you proceeding using a measure of BB's, say 4-6, as the amount you're willing to lose on the hand?

If not and having no reads, what's your decision making process as far as how much more to pump it? I'm hoping the higher level thinking posters will share more than "I have a set" here. If it's that easy, say so. But you have to be willing to stop sometime. When's that?

Folding sets is as rare as set over set. I'd just like some feedback on what's used to determine how much you'd lose before giving him credit that you're beat.

All responses appreciated.