Wednesday came from behind to earn what could prove a priceless three points against QPR on Saturday.
Quickfire goals either side of half time from Graham Kavanagh and substitute Deon Burton overturned Damian Delaney's early opener as the Owls turned the screw on their relegation rivals.
SWFC made three changes from the team that lost in dramatic style to West Brom in midweek. Suspended duo Adam Bolder and Jermaine Johnson gave way to Ronnie Wallwork and Franck Songo'o - who stored an immediate start after joining on loan from Portsmouth on Friday - while Burton O'Brien dropped to the bench to accommodate returning winger Wade Small.
The game was three minutes old before the first shot went in but Enoch Showunmi's long ranger failed to cause Rangers keeper Lee Camp any problems. Kavanagh then sent in a daisycutter from distance and again Camp was untroubled.
Debutant Songo'o almost created havoc with his first cross, stroking over a defence-splitting ball that this time called Camp into action and his fingertip touch proved crucial in denying onrushing Owls duo Small and Marcus Tudgay.
But Wednesday's early pressure counted for little as Rangers stole into the lead on the 15-minute mark. Skipper Martin Rowlands fed Rowan Vine down the left flank and the pacy midfielder slipped in a neat ball for defender Delaney to net his first goal of the season.
Clearly buoyed, Rangers continued to press and almost doubled their lead ten minutes later. Patrick Agyemang turned Mark Beevers a yard inside the penalty area and his bobbling shot bounced back from the post and straight into the grateful arms of Lee Grant.
Showunmi burst through on goal 32 minutes after good work from Tudgay but two R's defenders quickly thwarted the danger. QPR went on the counter a minute later following a Wednesday corner and Dexter Blackstock thumped over Grant's crossbar.
The Owls made a double substitution six minutes before the break to spark what was a lacklustre first half performance. Showunmi and Ronnie Wallwork came off, replaced by Burton and Sean McAllister respectively.
The changes had the desired effect too as Wednesday upped the ante, particularly in the final third, where Tommy Spurr had an angled piledriver charged down before,
right on half time, SWFC drew level. New boy Songo'o chipped a delightful ball into the path of Kavanagh, who broke free of the Rangers rearguard to plant a firm header over Camp and into the net.
Wednesday came flying out of the traps after the resumption but the first real chance fell to the visitors. Dangerman Vine broke clear down the left flank and teed up Agyemang, who lashed in a fierce snapshot from close range that Grant did well to parry to safety.
On 51 minutes, though, the hosts stormed into the lead. Tudgay's header was spilled by Camp, McAllister nipped in to profit and the keeper caught the substitute as he nicked the ball away. Referee Swarbrick pointed to the spot and Burton stepped up to casually send Camp the wrong way from 12 yards.
The pendulum was swinging Wednesday's way and Kavanagh went close with a curling free kick from 20 yards. Tudgay went closer still moments later, spotting Camp off his line before launching a dipping effort that landed just the wrong side of the keeper's upright.
Rangers responded with a glancing header from Blackstock that forced Grant into a diving save while at the other end, Camp produced the save of the game to keep out Kavanagh's long range curler.
QPR were camped in their own half in the closing stages and Songo'o almost made it three on 84 minutes but the Frenchman's rasping free kick deflected off the defensive wall for a corner. Spurr headed narrowly wide from the resulting flag kick and Small fired a vicious shot wide before late drama involving Wednesday unfolded for the second Saturday running.
Rangers substitute Hogan Ephraim - leading with the elbow - charged in on Songo'o and immediately saw red, sparking a melee that ended with the referee calling time on the contest and the Londoners down to ten men.
Owls (4-4-2): Grant; Hinds, Beevers, Wood, Spurr; Songo'o, Wallwork (McAllister 39), Kavanagh, Small (O'Brein 90); Showunmi (Burton 39), Tudgay
Unused substitutes: Burch, Boden
QPR (4-4-2): Camp; Delaney, Stewart, Mancienne, Connolly; Buzsaky (Balanta 75), Leigertwood (Mahon 66), Rowlands, Vine (Ephraim 63); Agyemang, Blackstock
Unused substitutes: Pickens, Rehman
Referee: Neil Swarbrick
Attendance: 18,555
