Surfriding 3 inch setback pump project pics.UPDATED with review
- Thread starter masterblaster
- Start date
masterblaster
X-H2
Matt..I bolted the front wear ring in its stock holes,the middle is just a spacer,doesnt need to be bolted,the reduction nozzle holds it from the back with the tabs welded 3 inchs back
Tem,whats the fitting look like?
Tem,whats the fitting look like?
Boris
The Good Old Days
- Location
- The surf-less coast
You talking about the steering cable, right ?
An aluminum extension for the steering cable tube would be cool as hell but I'm sure some scrap PVC and some donor hull parts would work.
The definition of a "set-back" pump by Skat-Trak terms would mean reducing the stator section and moving the impeller closer to the reduction nozzle. This increases the intake area before the impeller thus storing more water.
Shouldn't this technically be called increasing the inlet section before the impeller and "moving the pump back" in the hull? I've seen this done before on some buoy boats but never on a freeride ski. Usually the pump inlet tunnel is altered also. Never rode one though.
The 08 and up superjet had the whole pump cavity and pump moved back in the hull. The engine and midshaft are still in the same position, thus the need for the longer driveshaft. The inlet section is still the same as the past hulls.
The XFS and FS/FR-2 have the midshaft and engine moved back but we still use the term "set-back". Although the pump cavity has been moved and you still use the pre-08 driveshaft.
I would build an aluminum spacer for the cable mounting. Looks like that might be a problem area.
Still a great project to learn and understand more about pumps. Hope it works for you.
Shouldn't this technically be called increasing the inlet section before the impeller and "moving the pump back" in the hull? I've seen this done before on some buoy boats but never on a freeride ski. Usually the pump inlet tunnel is altered also. Never rode one though.
The 08 and up superjet had the whole pump cavity and pump moved back in the hull. The engine and midshaft are still in the same position, thus the need for the longer driveshaft. The inlet section is still the same as the past hulls.
The XFS and FS/FR-2 have the midshaft and engine moved back but we still use the term "set-back". Although the pump cavity has been moved and you still use the pre-08 driveshaft.
I would build an aluminum spacer for the cable mounting. Looks like that might be a problem area.
Still a great project to learn and understand more about pumps. Hope it works for you.
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junkyardj
┌∩┐(◣_◢)┌∩┐
- Location
- barrie ont. canada
where did you get the shaft masterblaster? if it works out for you i have a few longer shafts kicking around
joe b
depth tester
- Location
- northfield, nj
Nice!!!! Looking forward to a ride report. I'm thinking about moving my inlet & pump back 5 in. using a wave jammer shaft.
Flash-FX
No Square..No Round..FX-1
- Location
- South Jersey Shore
I use a plastic fitting to relocate the cable housing end 1". I think the guys here are on the same lines of making the cable fit. A 1/2" Sch 80 threaded nipple with a threaded coupling would do the same thing (like a 3" nipple and coupling to make up the 4"...or whatever). The added extension distance might need to be stabilized on the end, check that out.Note:In the picture here, the prototype fitting I used is a Marlex 1/2" riser extension.
(sprinkler fitting) Don't use this style, use a PVC version,....The Marlex fitting broke @ the male thread.
WaveDemon
Not Dead - Notable Member
- Location
- Hell, Florida
but isn't the 08 intake further back keeping it in the water longer or deeper in chop. That seems much more useful than a longer intake track.
WILKEY
SO FAR CHANGE SUCKS!!!!!!
hahahahaahah nice going torr pretty cool cant wait to ride it
- Location
- Central Florida
Finally someone is doing this.. I was going to do this for my fx build but got a 148 mag and never looked back.. I still have the pump and wear rings attached just sitting there.. let us know maybe I will put an extra wear ring in front of my mag
Idok
F1pro
- Location
- Nations oldest muthaF+++kin city
the entire pump in the F1 pro is setback as well..........it uses a SJ driveshaft so the setback is the difference between fx and SJ longshafts
IMO this is the BIGGEST difference between an Fx with a 144 swap, and a true F1 pro...
Torr, I think you are going to notice a tremendous difference!
I'd like to try a setback stator/impeller next to push it back even further..
IMO this is the BIGGEST difference between an Fx with a 144 swap, and a true F1 pro...
Torr, I think you are going to notice a tremendous difference!
I'd like to try a setback stator/impeller next to push it back even further..
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That was point 2 in my post you quoted.
bad93blaster
X-H2
Pvc doesn't work I have tried iit and even ran a aluminum sleeve over the pvc and it still breaks. I have bee selling this as a 2inch kit for about 4yrs with a alum steering cable staper and custun wear ring.
When I put trim on my 750 I ran into the steering cable problem. I just bought a solid aluminum rod from Lowes and drilled the center with a very small drill bit. Then once I had it all centered, I progressively went to larger drill bits until I was at the right size. Then I just tapped both ends accordingly. With this method, you can make the steering cable extension as long as you need it and it won't break.
masterblaster
X-H2
I went with this setup cause it was the least trauma to do,A blaster shaft just happens to be the precise same extra length as the extra wear ring over a sj shaft.It would be better to move the inlet back as well,but this is a easy fix to gain more steering and trim leverage,as well as keep the pump loaded longer as you come out of the water,I got to ride bolte fr2 with the pump further back and really liked the pump setup position,this is just a $6000 cheaper way of improving a sj hull than replacing it,lol.If a 1 inch mag setback makes a diff,this will only make 3 x more diff,as I could care less about high speed hookup I just want more hook at the last moment on reintrys and then more area in the pump to compress whitewater landing in the foam.
I will be trying this with a 142 setback mag as well,Chris is gonna make a custom shaft for me to do it,this will be a 4 inch setback and have the benefit of the higher mag pump pressure.Im sure this will compress whitewater even better.
Tubie.. your setup makes sense for racing where you have rules on how far the pump can be out the back,but in this case freeride guys can use the entire wear ring and use a b1 shaft,with a stock pump rather than having to to make a custom shaft for even less result,If you can make one of the steering cable inserts a little longer Id like to try that,just not sure if there is room with the cable to move it back 4 inchs,so im looking at a reinforcing sleeve to put over the whole cable and extension as well.
waternut,thats the same thing I have done,but its still more leverage put on the cable further out from where it over laps,some reinforcing is in order im sure
I will be trying this with a 142 setback mag as well,Chris is gonna make a custom shaft for me to do it,this will be a 4 inch setback and have the benefit of the higher mag pump pressure.Im sure this will compress whitewater even better.
Tubie.. your setup makes sense for racing where you have rules on how far the pump can be out the back,but in this case freeride guys can use the entire wear ring and use a b1 shaft,with a stock pump rather than having to to make a custom shaft for even less result,If you can make one of the steering cable inserts a little longer Id like to try that,just not sure if there is room with the cable to move it back 4 inchs,so im looking at a reinforcing sleeve to put over the whole cable and extension as well.
waternut,thats the same thing I have done,but its still more leverage put on the cable further out from where it over laps,some reinforcing is in order im sure
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Idok
F1pro
- Location
- Nations oldest muthaF+++kin city
masterblaster
X-H2
I noticed that on you f1pro in just the little time I rode it in tona,ultimate hook right off the lip,that and how light it felt leaving.think what it would be like with a setback mag and this extension added on top of that.
Idok
F1pro
- Location
- Nations oldest muthaF+++kin city
its got a mag in it now...not setback though........
my favorite part of that ski....feels like you are hooked alllll the way to the end
you coudnt extend it out anymore....the nozzle already sticks out about 4" from the back
scottie mac
X-
Torr,
I forgot about the prop. PM me again what you need. Sorry.
As for the extra ring, Joe tried this in a blaster and then went with the 100mm one (2 inches) and didn't notice a difference. But, if the blaster driveshaft works without mods, that would be cool and cheap. Should help.
Scottie
I forgot about the prop. PM me again what you need. Sorry.
As for the extra ring, Joe tried this in a blaster and then went with the 100mm one (2 inches) and didn't notice a difference. But, if the blaster driveshaft works without mods, that would be cool and cheap. Should help.
Scottie