Freestyle What makes a mag pump?

Sasquachcrap

Sasquachcrap

Location
North Carolina
I am building a budget pump and wanted to get a little feed back. I Am coming off a 144 solas. I will be going to a 155 6 vain with a large hub. I will be modifying it to fit but would like to know what makes a mag pump the hub size or vain number. On a second note would there be any performance gain between a 75mm hub and an 83mm hub. Didn't skats older mag pumps only have 6 vains?
 
yamanube

yamanube

This Is The Way
Staff member
Location
Mandalor
I think it is a combination of hub size, vane number/orientation and thickness that make it better than an OEM stator.
 
cookn

cookn

Kamikaze
Location
where you live
I just switched from the solas 144 to an oem 155 from a 1100 wave raider and will never look back and I am only running a 718cc. In my opinion (that's my disclaimer) and I am sure some will disagree, you only need more vanes if you ride alot of surf or "white" messy water, as it aids in the straightening of the jet stream, or you have a larger displacement engine that is spinning the prop. I actually feel with the smaller cc you benefit from less vanes reducing pump pressure and increasing the flow of the pump which again aids in freestyle. I run the big hub prop with the oem stator section and no tbm style pump stuffer and the way the pump processes water is amazing compared to the solas. Now I am not saying that a 155 mag pump will not offer more gains as well, its just that the oem 155 offers huge gains for the price of them compared to the extra 1000 plus you will spend on the mag
 
Sasquachcrap

Sasquachcrap

Location
North Carolina
cookn said:
I just switched from the solas 144 to an oem 155 from a 1100 wave raider and will never look back and I am only running a 718cc. In my opinion (that's my disclaimer) and I am sure some will disagree, you only need more vanes if you ride alot of surf or "white" messy water, as it aids in the straightening of the jet stream, or you have a larger displacement engine that is spinning the prop. I actually feel with the smaller cc you benefit from less vanes reducing pump pressure and increasing the flow of the pump which again aids in freestyle. I run the big hub prop with the oem stator section and no tbm style pump stuffer and the way the pump processes water is amazing compared to the solas. Now I am not saying that a 155 mag pump will not offer more gains as well, its just that the oem 155 offers huge gains for the price of them compared to the extra 1000 plus you will spend on the mag
Click to expand...
This is what i was thinking.
 
cookn

cookn

Kamikaze
Location
where you live
The one scenario I can think of where the mag would really shine in flatwater would be doing the multiple back flips. After the first one the splash down would create the white water that the mag would process better, but I don't ever intend to take my riding to that level, so I guess it all comes down to how deep your pockets are.
 
Proformance1

Proformance1

Liquid Insanity
Location
New York Crew
A Mag pump is only Skat Trak terminology. Any Skat modified pump is a Mag.

There are a ton of theories and testing, and you will see differing opinions as to what works where and what is better where. Race, flat water, surf, top speed, etc.

There are a lot of variables to the answer. Every opinion you get will be correct for that person with that particular set up.

Hull weight, design, tunnel volume, shape, pump shoe design and size, nozzle and steering sizes, impeller spacing, motor, electronics/ignition, compression, motor RPM, maximum torque RPM, exhaust, impeller choices. All of these variables and more play into the pump working well.

One cannot imply that removing a 144 Solas and replacing with a 155 stock pump and having it hit harder that the small hub or 6 veins makes the difference. All that means is that the 155 volume, and the reduction nozzle and steering nozzle worked better than the last set up. The 155s reduction and steering nozzles are larger than the 144/148 set ups.

FYI, if youre going to a stock 155, make sure to check your spline engagement. JetManiac can hook you up with the proper shaft.
 
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W

WB800BLASTER

X
Location
Plymouth, MA
Also look at blue printing / porting the stock pump. Look at Pro tecs and group k's site. Some good info about it there. You can gain some more out of the stock pump.

I am a magnum pump fan and will only use the skat ones. BUT back in the day I used blue printed OEM pumps and would switch all 144's to 155's.

Read up about the Wave Blaster 2's on Group K's site. Yamaha got that pig out of the water really well with stock 155 and low pitched prop. To me that tells you everything that you need to know about what a big pump right pitched prop can do with a low HP stock motor.

in other words you are in the right direction
 
Sasquachcrap

Sasquachcrap

Location
North Carolina
Thanks guys. I'm going forward with modding this pump. It's a large hub 155 6 vain. I'll be cleaning up all the castings and cutting away all the unneeded meat on the outside so it will fit. Looks like I will be running a longer drive shaft. But my end goal was to be able to put together a well performing 155 "mag" pump for a fraction of the cost. Maybe even sell a couple. Here's a peek at the pre fitment.
c07731f85c43e5fef5d1e7ebd246a6ec.jpg
 
alex_hockey

alex_hockey

Location
Hamilton,
Cookin I believe its out of one of the new couches, or possibly the stock gpr pump. The bolt hole symmetry is not identical to our 155s so you need to run a different wear ring or weld and redrill the holes ask me how I know
 
Sasquachcrap

Sasquachcrap

Location
North Carolina
I think maybe it's out of a fx ho. Or something like that. But it's turning into a job getting it to fit. Any how it still is a low cost alternate to a 155 scat. And if it all works out right I want to be able sell them to drop in to stock 155 locations. Just add a 155 wear ring from a gp or similar and nozzle of your choice.
 
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