Will a ts 2021 pump put out 5.5 gpm on a honda gx 390 with geAr reducer? Or does the reducer always drop the rpm to the lowest setting resulting in 4.5 output? If the latter, then what pump will give me 5.5 gpm with my gear drive setup?
i don’t know if any 390 could provide 5.5 on low rpm
My understanding is those gearboxes are 2.2:1 so you’d be getting just over 1600 rpm on the pump running the engine at 36 so you get a bit more than 5.5gpm flow but with nowhere near the pressure to make a good machine
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