ive got to get a new pump. the only dilemma i have is whether i should be using near 4k psi on an 8 gpm or bigger gpm? Any regrets going with an 8gpm 3kpsi or 3.5kpsi pump?
I’ve used 8/3000 for over 20 years.
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What engine are you running?
thank you for your input.
Ive got gx 630 690 420cc and 25hp kohler, but kohler is onky beltdrive
The Kohler is the only one that would get you close to 4kpsi at 8gpm
You would need 29+ HP to run 8 gpm at 4000 psi (which you’ll never need). Beyond that, it’s just a matter of sacrificing gpm or psi. Best suggestion I can come up with; just take @Innocentbystander’s advice & be done with it.
GPM x PSI / 1100 = HP
HP x 1100 / GPM = PSI
HP x 1100 / PSI = GPM
ok, .
Im also wondering what could i do with a 8 or 9gpm BUT 2200psi?
My biggest curiosity at this point is… would I get more flow from an under-powered engine running a pump that is rated for lower PSI. I mean, what is the actual difference between an 8gpm / 3000 pump vs 8gpm / 3500 pump from a nuts & bolts perspective? I recently built a rig & while setting the unloader, I realized 15.8HP was my weakest link. The engine couldn’t push the PSI enough to get maximum flow. All in all I’m happy with the 2600-2700 PSI so far. I just wish the Hudson valve would do it’s job & stop trying to grenade my buffer tank.
my main issue and reason for asking is that I’ve never really cleaned grease. if cleaned dumpster pads, just not the greasy type.
That’s easy. Either don’t clean dumpster pads or set expectations properly. Dumpster pads are supposed to be ugly & I love taking the day off. You’re a smart dude. I’m sure whatever pump you end up buying will work out just fine for your needs.
lol, thanks man.
I clean a lot of greasy nasty stuff. You need 3600psi, which you can get pretty easily Time you go thru 200’ hose and heater you’re at 2800. But you need to decide which machine you’re going to put it on
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