Flatwater mag pump advantages?

[jetpilot08]

What? You don't trust us? I though we were all friends here. lol

 

[SUPERJET-113]

Here's the deal: My shortened hull + stock rideplate is really loose
I love the flickability of the short hull, but the rear end being so loose gets in the way.
I can cruise along, then flick the bars and be going sideways until the hull slows to a stop - aka a long ways.
The back end breaks lose in turns, unless I plant my weight all the way to the rear.
I think I can stand to gain "too much hook-up".

Oh i forgot about the short hull. It all makes sense now.
A TBM would work great for you then. You would like it....

 

[Matt_E]

Too late, bought a pump.

 

[SUPERJET-113]

get a mag? that will be better anyways..

 

[kevbo]

the two pros I have talked to have been all for a mag pump or tbm cone but they did say you need the HP to use it. The were talking to me about 5mm stroker's and up. I dont think that a 760 would fall into the group of high HP motors but maybe thats just me.

They were trying to get you to buy an expensive engine to go along with all those pump parts.

 

[Big Kahuna]

Longer ride plate would help!!!!!!!!!! Better yet, lengthen the hull if that is your problem!!!!!!!

 

[BruceSki]

more than free Internet forum advice.

:biggrin:

But the internet said to do it!


let us know how that mag pump works out for you once you get it in.

 

[McDog]

So would a TBM be worthwhile for my 771 LPW standard stroke with total loss, pipe, 44's etc? I'm running a hooker 10/17 with an 85mm nozzle now and I'm thinking I may be underpropped. Flatwater only.

 

[BruceSki]

So would a TBM be worthwhile for my 771 LPW standard stroke with total loss? I'm running a hooker 10/17 with an 85mm nozzle now.

Ive been running a TBM with 12/17 cutback big hub freeride swirl prop on my sj for two years now.

First I had it with a pipe, head, flow control, lightweight couplers and TBM flywheel.

Now i have that plus 44's, enhancer and TS porting.

I think it works great in the whitewater behind another ski, and surf whitewater as well. It hooks up very well but not as well as a mag.

I am not much of a flatwater guy and i don't ride freshwater either so i couldn't tell you much about either of those. As for trying to get through a washing machine break, its the shiz.

I'm going to bring an 85mm nozzle with me to daytona, swap it and see if it makes a noticeable difference.

 

[Matt_E]

Longer ride plate would help!!!!!!!!!! Better yet, lengthen the hull if that is your problem!!!!!!!

I am running a stock length plate.

As explained previously :fingersx: I like most of the short hull handling.

 

[Big Kahuna]

Most, but not All!

 

[Millertime]

what configureation mag did you get Matt? diameter, set-back, number of veins ect. I noticed a big differance between the 12 and 14 vein, but that was for buoy riding?

 

[Matt_E]

140mm 12 Vane setback.

Impeller will be around 13/18

 

[jetpilot08]

What kind of drive shaft will you use? Are you going to run a 08 drive shaft because of the the setback or do need a special drive shaft for the pump?

 

[Matt_E]

It's a special Skat-Trak setback driveshaft.

I would not have bought a setback pump if I were ordering new. The Skat shaft costs $400.
However, I found a decent deal on a used setup that included the shaft.

 

[waxhead]

I found on my ported 760 superjet
48novis , type 9 pipe , digital ignition that a 140 mag was to much for it
yes i did alot of propp testing it just dragged the ski to the water to much and the boat felt heavy
they chaged the rules in that class and i went back to a big hub with a tbm pump cone lost a bit of hook up but the boat was quicker by a long way

Now with the 8mm stroker the tbm pump gone doesnt get a look in , it will cavitate no matter what i do
The mag pump is the only thing that will hold it

 

[Matt_E]

Yep, this mag pump is too big, too small, too much hookup, completely wrong for what I need. :biggrin:


I'll let ya'll know how it works out.

 

[Scorn800]

Yep, this mag pump is too big, too small, too much hookup, completely wrong for what I need. :biggrin:


I'll let ya'll know how it works out.

Don't you just love free advice on the interweb!?!?:fingersx:
All this and SFL has saved the SPORT:Banane26:
What a great X week!!:drive:

 

[jetpilot08]

Yep, this mag pump is too big, too small, too much hookup, completely wrong for what I need. :biggrin:


I'll let ya'll know how it works out.

It will be fine...................as long as you install another one of the bad ass L fittings :icon16:

 

[Matt_E]

Setback pumps allow more volume (water) to be loaded/stored in the pump area, vs a Standard pump. Many of the Aftermarket hulls now are setting the pump back.

Thats how it was explained to me & it makes sense if you think about it.

If you got lots of Brap under the hood, a Setback mag is the only way to put the power to the water. My new build will have a XS1000 & Billet Mag 148 Xscream/Scat pump.

Did you get a chance to actually compared the std non-setback against the setback pump back to back?