Did you add a bigger fan or use the factory fan and just add the toggle to manually turn it on? My '13 model is running way warmer than I want and South Mississippi summers aren't getting any cooler.
I don’t understand how installing larger lines will help you whatsoever. Yes you might get a little more flow but your hydraulic pressure will drop. Hydraulic horsepower is calculated by flow x psi/1714= hydraulic hp. Unless you upgraded the pump, that machine won’t gain anything just by upgrading the line size. If it did gain anything, I’m sure bobcat would have installed them from the beginning.
Try blowing water threw a small straw and see how far it goes, now using the same force use a bigger straw.. you'll see the difference is clear even, your able to put more volume with the same Force threw the bigger straw an since we're talking hydraulics they will also run cooler with the less drag/ restriction!
Had my bobcat rep tell me the samething about the quick connects. What quick connects did you put back on I it. Been going to change mine out like you have but not sure which fittings will give more flow and still be universal.
When you double the size of a hose you reduce the friction loss in the hose by 4 times. So by increasing hose diameter Lowers friction loss with the same PSI from the pump will increase your GPM.