Flamewheel F450 motor/prop combo for added weight

I have a Flamewheel F450 with 2212/920KV motors and 25/12.5 props. I'm close to the weight limit and wondering if there is a better motor/prop combination which will provide more lift (at the expense of duration maybe)?

Any thoughts?

 

Are you saying you are using 12 inch props with those motors?

 

No. That's the Graupner size ref in mm. They are 10" x 5". I have since done some work on ecalc and switched them for Graupner 11" x 5" and an overlander 6250mAh 3S pack. That actually gets me around 12 minutes of hover/flight and OK performance. AUW = 1.97Kg (includes GoPro Session5 and 3-axis gimbal, which corresponds pretty accurately to the ecalc result. If you have ecalc you can see the details here:

https://www.ecalc.ch/xcoptercalc.php?ecalc&lang=en&cooling=good&rotornumber=4&config=flat&frame=450&tiltlimit=90&weight=282&calc=sum&elevation=500&airtemp=20&qnh=1013&batteries=0&battcap=6250&battri=0.0064&battv=3.7&battccont=35&battcmax=60&battweight=140&chargestate=6&s=3&p=1&battdisc=0.85&esc=max_30a&motor=dji&acci=0.4&accweight=825&type=22|2212-920&gear=1&propeller=graupner_e_prop&diameter=11&pitch=5&blades=2&project=F450

 

Some rather unique landing gear. No tip overs for you.

 

Lol. It's so I can hang the gimbal and camera underneath and have the legs and props out of the view.

 

How is your CG with the camera pushed forward, are you compensating by moving the battery back?

BTW I'm not knocking it.

 

The camera is directly under the CoG. The two front struts are widened so it can't see them.