300/440/550 X-2 Duel carbs??????

D Slicker

Durham, dont forget it
Location
Pottstown, PA
You know you want to put that 800 pump in there too! Plus add a TBM pump stuffer!

Actually they are the same pump with some small changes. According to the people I have spoken to it is better for me to have my pump ported than go through what it takes to put the SX-R pump in.
 

Crab

thanks darin...noswad!
Location
Seattle
Actually they are the same pump with some small changes. According to the people I have spoken to it is better for me to have my pump ported than go through what it takes to put the SX-R pump in.
Exactly, have the skat swirl custom made and set it back. I am toying with the TBM pump stuffer idea if it will fit.
 

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dbrutherford

Parts Whore
Location
Fairmont, WV
Crab, I do not think it will fit :( I recently just bought a prop off of a guy on PWCToday.com to put back into this X2 I recently bought.

(I am keeping the aftermarket parts I want and sellign the others)

He sent me a 750 prop and not a 650 one :( Not worth sending it back for 30 bucks.

Well if you compare a 750 pump to a 650 pump, there are some differences. #1 of course is the pump shoe and seal.

#2 is where the prop actually bottoms out on the pump shaft when tightened up.

The 650 prop has the threads farther up inside of it. Then the 650 pump has the metal around the front bearing necked down some. So the prop hub actually goes over the pump hub.

So if the TBM pump stuffer is designed for a 750, I seriously doubt it will fit the 650 pump correctly.


Now the 750 prop should essentilly fit in the 650 pump but the guy sent me a 750 prop and it doesn't fit the 650 pump. the base of the prop bottoms out on the front bearing/seal/pump hub. :(

I know I always heard of peopel using 650 props in a 750 pump and shimming them to get the propper prop to stator vein clearance but it seems like too much work.


How much did that Sklat cost you? What is the situation with your FPP? I wish I had the funds to just buy all of the pipes the make and just try them all out to see what fits and what doesn't.

DBR
 
The 750 props work great in the 650 pumps. Like Slicker said all you have to do is cut the center part of the hub back and chase the overlap back on the outter edge. I've done three of them on my lathe at the house for my x2's. I use an old drive shaft run thru the head of the lathe to hold the prop and shim it tight on the splines. There seams to be a much larger selection of 750 props to choose from and they a readily availble on e-bay all the time.
 

dbrutherford

Parts Whore
Location
Fairmont, WV
Ok I know exactly what you guys mean. It is where the hub of the prop goes over the hub of the impeller.

I just want to make a 750 pump work so I can eventually get a Skat Magnum.. :):)
 

Crab

thanks darin...noswad!
Location
Seattle
Crab, I do not think it will fit :( I recently just bought a prop off of a guy on PWCToday.com to put back into this X2 I recently bought.

(I am keeping the aftermarket parts I want and sellign the others)

He sent me a 750 prop and not a 650 one :( Not worth sending it back for 30 bucks.

Well if you compare a 750 pump to a 650 pump, there are some differences. #1 of course is the pump shoe and seal.

#2 is where the prop actually bottoms out on the pump shaft when tightened up.

The 650 prop has the threads farther up inside of it. Then the 650 pump has the metal around the front bearing necked down some. So the prop hub actually goes over the pump hub.

So if the TBM pump stuffer is designed for a 750, I seriously doubt it will fit the 650 pump correctly.


Now the 750 prop should essentilly fit in the 650 pump but the guy sent me a 750 prop and it doesn't fit the 650 pump. the base of the prop bottoms out on the front bearing/seal/pump hub. :(

I know I always heard of peopel using 650 props in a 750 pump and shimming them to get the propper prop to stator vein clearance but it seems like too much work.


How much did that Skat cost you? What is the situation with your FPP? I wish I had the funds to just buy all of the pipes the make and just try them all out to see what fits and what doesn't.

DBR
The Skat was just under $300, best money I have spent yet. Nothing I have tried has the hookup like this combo, no need to try and convert to something else. I did machine the bearing spacer back about 4mm and clearance the outer bearing hub back a bit to get some additional setback.
 
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dbrutherford

Parts Whore
Location
Fairmont, WV
Yeah the older Skat Magnums were just modified OEM pumps. They would bore out the liner and stator sections leaving a hollow tube. Then they pressed/welded in their stator/hub. I called them once and they said they didn't really want to fool with a 650 because they didn't have the tooling to affix it to their mills/lathes to do the work.

Yeah I am leaning towards just getting a blue printed 650 pump right now. I wonder if sweetemotions has any more? I am broke now so it doesn't really matter.

If I ever get stupid enough to buy one of those japanese hulls, they just use a 750 pump. I would still like to know what pipe options they offer or engine options. A tripple sure sounds nice!
 

Crab

thanks darin...noswad!
Location
Seattle
I have not blueprinted mine at all, and it still hooks up great with the swirl in there. 85mm nozzle, pumpcone.
 

dbrutherford

Parts Whore
Location
Fairmont, WV
Cool,

Crab you still looking for a FPP head pipe? Some guy told me he has a full 650FPP but I am awaiting pics. I want the chamber if it is different from the chamber I have.

DAVE
 

Crab

thanks darin...noswad!
Location
Seattle
Cool,

Crab you still looking for a FPP head pipe? Some guy told me he has a full 650FPP but I am awaiting pics. I want the chamber if it is different from the chamber I have.

DAVE
Yes, I was talking with a guy I bought a Jetnetics flywheel from that has the whole setup also, but he wouldn't give me a price. He is in Islip Terrace, New York. Let me know, I may have to order a new one for $220, and wait till they run some limited B pipe chambers.
 

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