Things were close at half time, as the Burras lead the Roos by just seven points in an arm wrestle of a first half.
However, after halftime, Delahunty moved Warwick Stone into the ruck, Keiran Delahunty to centre-half forward and gave the order to go through the corridor and open up the game.
The result was an explosive four goals in the first ten minutes of the third quarter, with more following as the Burras romped home to win by 55 points.
Delahunty said he's proud of the way his team took the game on in the second half.
"We had to change up a few structural things and just focus on what we were trying to achieve," Delahunty said, singling out Warrack Stone and Luke Fisher for praise.
"Warwick put in a great four quarter effort, and Luke kicked some clutch goals," he said.
Delahunty said the Burras still had room for improvement, with his side's performance during the first half to come under scrutiny.
"We leaked some goals early, which is something we'll be trying to get on top of going forward," he said.
"We got a bit distracted at times. Dimboola came with their tails up and managed to kick twelve goals against us. They obviously came to play,"
Dimboola's score of 12.8 (80) is the highest score conceded by the reigning premiers thus far this year.
For the Roos, coach Justin Beugelaar and ruckman Jay Lehmann were the best, while utility Mitch Jorgensen kicked 3 goals to keep Dimboola in the hunt.
Meanwhile at Couglin Park the Saints pulled off an almighty upset, trumping the Southern Mallee Giants by four points in a thriller.
The Saints jumped the Giants out of the gate, kicking 3.6 (24) to 1.1 (7) to help set up the win.
Ball magnets Sam Clyne, Angus Martin and Cody Bryan dragged the Saints over the line, with Mitchell Martin and Riley Hall contributing.
The loss of spearhead Brock Orval continues to worry the Giants, with only one player (Haydn Drew, 4 goals) managing to kick more than one major.
At Central Park the Warriors held off a fast finishing Horsham to record a 24 point win, with Cody Driscoll back at his best with six goals.
Driscoll now has 32 goals to his name, and has a thirteen goal buffer between him and the next highest, Minyip-Murtoa's Brayden Ison (19 goals).
In other games, Nhill and Warrack played out a tense thriller at Davis Park, with the Eagles prevailing by four points to claim their first victory of the season.
The Eagles lead for much of the game, and held on to win as the Tigers charged home.
Both sides will rue missed opportunities in the final term, with just one goal being kicked between both sides.
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