NX4510 just cab gpm and psi

[joefromga]

Does anyone know offhand the psi of the rear remote and what actual flow my machine produces? It's rated 17.9 gpm but from what I'm reading this is before the hydrostatic and pwrs uses some..

Also my remotes are bigger than the ones on the loader. I have the backhoe and an extra. Is this 3/4"? Does that mean anything or make a difference power wise or just helps with cooling?

Thanks.