schicks
Karma Enforcer
- Location
- West Michigan
Just ran the poorman set back pump. Im totally pumped, more thrust, turns on a dime, nose pops up better, doesnt cavitate or porpose. Looove it, couldnt be happier.
New Inverse Hull
- Thread starter schicks
- Start date
- Location
- Texas
So it that a 3 inch Pump Setback then?
schicks
Karma Enforcer
- Location
- West Michigan
Yea; whatever the thickness of an extra wear ring is.
- Location
- Texas
Any more photos of your Pump Setback Project?
Did you add more Inserts for the extended Pump? Used standard Jetski Brass Inserts? Rivet-Nuts? How many Bolts are holding the Pump in place? 4 or 6?
Did you swap Impeller Shafts? or somehow add a 3" extension?
And the Steering Cable? Added a Coupler Nut?
I'm going to be doing the same 3 inch Pump Setback on my Square Nose using an additional Pump Section, Riv-Nuts and swapping in a longer Driveshaft. Will have the Pump rebuilt during the Shaft exchange.
Did you add more Inserts for the extended Pump? Used standard Jetski Brass Inserts? Rivet-Nuts? How many Bolts are holding the Pump in place? 4 or 6?
Did you swap Impeller Shafts? or somehow add a 3" extension?
And the Steering Cable? Added a Coupler Nut?
I'm going to be doing the same 3 inch Pump Setback on my Square Nose using an additional Pump Section, Riv-Nuts and swapping in a longer Driveshaft. Will have the Pump rebuilt during the Shaft exchange.
Last edited:
schicks
Karma Enforcer
- Location
- West Michigan
I used oem brass inserts. There are 8 inserts, but 6 bolts. 4 in wear rings, 2 in nozzle. custom shaft from squatchcrap, steering cable extentions from mcmaster. I was worried id have to reprop, but its goood. This ski has a setback motor with gp800 midshaft as well.
- Location
- native idahoan
Does that work pretty good? Bought a PJX hull a couple years ago that had that same pump setup but never got a chance to ride and build that ski before I had to fire sale it to help pay taxes. 
Sent from my moto g power (2022) using Tapatalk
Sent from my moto g power (2022) using Tapatalk
schicks
Karma Enforcer
- Location
- West Michigan
Working with some prepreg at work on a huge government project; gaining knowledge. Hope to do a prepreg hull this winter. Im gunna shoot for 45 lbs total, full carbon and see how it holds up.
- Location
- Tri-Cities,WA
Can you pm me? Would like to pick your brain about a pjx
- Location
- the jetski grave yard
Just call me at 916 462 1857 not messaging back and forth
Carbon prepreg tends to be a little dry and stiff for jetski use. Plus its expensive. If you can get free material then go for it.