LAST EDITED ON 10-01-11 AT 11:41 PM (EST)From Episode 6 of Pearl Islands:
Immunity Challenge: Tribe members would be forced to hold a pole on their shoulders behind their neck. Periodically, weight would be added to the poles. The castaways would decide which poles the weight would added on for the opposing tribe. Last tribe standing wins immunity.
At the Immunity Challenge, Morgan chose to add all of the weight to Rupert's pole, while Drake decided to spread the weight evenly among the Morgan tribe. Morgan's strategy worked, as Rupert could not hold the weight. In the end, Christa couldn't compete against that last two Morgan men left, giving Morgan yet another immunity win.
Here is a promo shot of Rupert with his weights.
(and Christa for comparison)
So, yes, it's still possible to break the record and not win immunity as originally Rupert set the record and didn't win the challenge.
Oh and from Tocantins wiki...
Brendan dropped out first when he was about to carry 220 pounds (100 kg). Tyson dropped out next at 140 pounds (64 kg), leaving just Debbie for Timbira. J.T. carried 220 pounds (100 kg) before dropping out next, tying the weight carried by Rupert Boneham in Survivor: Pearl Islands. Moments later, Joe dropped out at 140 pounds (64 kg), leaving the two women to continue the challenge. Just as both women were to move to carrying 120 pounds (54 kg), Debbie dropped her pole, giving Jalapao their fourth straight challenge victory.