fitting a magnum stator in a 750 pump

[w-nut]

i managed to pick up a magnum stator for a 750 pump a wee wile back and i finally got round to fitting it into on off my pumps . thought id share the pics if anyone was intrested . i also set back the prop 5mm as well wile i was in there and drilled and taped it for duel cooling
the frist pics is setting up the pump in the lathe, the second pic is machineing the old veins out (the lathe is spinning at 550rpm in this pics and you can see the swarf flying out ).the 3rd pic is all ready for the new sttor to be put in (warmed the houseing up with the gas and droped it in and then the houseing shrunk down to hold it when it cooled ) no 4 is the new stator in with new bearings and shaft and 5 is with the prop in .

 

[aof13]

what advantage does this have over stock? you went from 6 vein stock to 6 vein magnum. Couldn't you just have blueprinted the stock one, and saved tons of money/time?

 

[waxhead]

large hub

 

[special fx]

The hub size is puzzling me, it looks like a stock sized hub??

 

[aof13]

unless this is a magical camera, those hubs are identical in size.

 

[w-nut]

yeah the hub is still the same size , the main reason is its alot atroger than the standard one its blue printed already (the hole thing is polished ) and the main one is im going to a 750 pump in my x2 instead off the 650 .and the cost off it was pretty good i did all the machine work my self at work so it was just the price off the magnum stator ($150) and the prop

 

[aof13]

stronger=heavier. I've never heard of anyone breaking a pump unless they sucked up either some huge rocks, or crashed it into a truck?

 

[w-nut]

its not that much heavier but i can live with the extra wee bit off weight , but as i said above the main reason i did it was to update to a 750 pump for the x2 , i had it laying round in the garage and it was better off been used than sitting on the garage shelf . and it was something to do at work rather than sitting on my arse . tonight at work im going to rebuild my kdx 200,s rear suspension and mod the air intakes on my x2 hood :biggthumpup:

 

[oldx2]

the main reason i did it was to update to a 750 pump for the x2

I don't get it, both the 650 and 750 kawa pumps are 140mm and a 750 or sxr prop goes in a 650 housing by taking 6mm off the hub. Whats the update besides giving yourself a a fibreglass job?

 

[special fx]

Did this thread die? I'd still like to hear about the advantages of the 750 pump conversion. I don't understand what's being gained. It's pretty simple to mod props for a better selection with the stock 650 pump and the 750 is the same diameter.......am I missing something?

It seems like a lot of work and I can't see the benefit.

 

[Crab]

large hub

Thats not a c-75 hub.

 

[Mile9c1]

Does the advantage have anything to do with now he can use 750 impellers? The 650 and 750 impellers are not interchangeable. Not sure why, maybe because they are different lengths. So if he set back this stator, then he can use the 750 impellers. Just my guess.

 

[w-nut]

the main reasons for the change was my 650 pumps wernt in very good condition ( the wear ring came out off one while rideing) i had the magnum stator section in the garage and i pick up a 750 pump real cheap as it had a smashed stator section in it . the 750 pump is alot faster and easer to put in out and you dont need half a tube off silicon to put it back in .
and the main reason is im now running a sxr800 scat 13/18 prop.

 

[Scorn800]

Did you "setback" the stator section? or is the stator section in stock location?
I know a machinist who set back the stator section 3/8 of inch in stock pump.
Which will work like a set back mag pump. Pump will be blueprinted
Might try to mock up a TBM cone. Plan to mock up the whole thing in next few weeks

 

[Crab]

Leggdrager has done that TBM conversion already to a 650 pump, it fits fine but since the center section is 1/4 inch more forward, the rear o-ring won't seal off the end. He had some machining done and a sleeve added to make up the difference. He is very happy with the result!!:Banane01: :cheer: :woot: