Surfriding 3 inch setback pump project pics.UPDATED with review

Here is what I did when I added trim and the steering cable wasn't long enough. It's fairly simple and I see no reason why it couldn't be made longer to accomodate your needs. If you need me to make you one, send me a PM.

On the smaller stock cables that will give more leverage to bend. we have been upgrading to blaster 2 cables because of bending/breaking problems before we did the spacers with our motors. That's why my spacer is located back at the hull
 
Finally got this thing tested,we finally got some higher temps and good surf in the same day,its been freezing here.This ought to be called the stabilitract mod. I got everything out of it i was after,it holds the nose a couple inches higher and allows the ski to turn more from the center to the back like a rickter or rocker hull. It tracts and turns down the face of large waves unbelievably better. Recovery's from large airs are more easy,it powers out of the big landings immediate. It has a feeling of solid connection to the last sec on thin toped waves on reintres,compacts whitewater great on landings,it sounds diff like a supercharger its right at the edge of hookup in highly aerated whitewater. Turns 2x faster,doesnt sink the nose on big waves slashes as easy,Trim is almost 2x more effective and faster.

To top it all off high speed corners like its on rails,chine walk with tubbies is completely gone in glass at speed.I couldnt get it to break loose,run out of water or cav in high speed dang near 90 deg lean turns,was bouncing my shoulder off the water and eating it before the ski showed any of those issues. I shimmed and lowered the grate a tad,cut a slight window in the top loader to shoot water at where the prop now sits,It needs some experimenting with diff ride plates,the d cut ride plate im using is no longer necessary for sure.I could prolly shortin the pole a couple inches with this setup as well. I can find no down side as of yet.

Good to know my concerns were that with the nose riding higher that you intake would be coming out of the water faster.
 
did a little research on that topic as well,it could be a issue with shortened hulls,maybe even cf light hulls,mine is pretty heavy,stock reinforced,she rides low in the water anyway,but with this 5 mill motor and pump setup it rides like its really light,hp and hook go a long way for that effect.
 

Waternut

Customizing addict
Location
Macon, GA
I wasn't considering the nose high condition in the shorter hulls as much as the length in general. I know my steering nozzle already sticks out way past the hull and with this mod, it'd be so far past, it'd be rediculous. Awesome idea though.
 
would be interesting to see what this would do on a hull that had a pump already setback back with the hull design,prolly wouldnt stick out the back to much farther than the xfs. I also noticed when you rip the top of a lip and the pump jets out,the amount of spray you unload is crazy,some pelicans freaked out on a dock in the thin slow wake and droped in on us and dang near flew right into us,I jetwashed one of them coming in close and it was ugly.lol
 

SUPERJET-113

GASKETS FOR CHAMP BRAP!
Site Supporter
My friend Ernie here in Havasu has a AP designs RN SJ that was all built up as a race boat by Bill Chapin(R&D owner). This ski did 65mph and it had the same basic thing in it that you did Masterblaster, but with a MAG pump. The extra wear ring was welded on. He had also move the pump tunnel back too and it had a custon made Ti driveshaft to boot! It hooked up like no other on flat.
He bought it as first to run buoys with, but then wanted to turn it into a freestyle type boat, so he changed it around because it hooked up way to much for him. . he never tried it in surf. Its was pretty cool though how fast that thing went and stayed stuck to the water. It looked like a Rius ski out there. I had a good wipeout on it going WFO and I skidded like a rock across the water forever it seemed, and it hurt too...lol
 
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love this setup overall,but had alot of issues with it in tona,on small steep wave faces,for some reason,I had to add a good bit more spacers in the back of the pump to get proper shaft alignment,this gave the nozzle a slight downward angle,when you gave it alot of throttle on small steep wave slashes,it would just dig in the nose really hard,I didnt want to reshim the motor higher to reduce spacers in the rear of the pump so Im setting the trim nozzle to a few deg up to compensate,will let you know how it goes after some more test rides,hopefully I can get away with a longer plate for slow speed turns with the trim set this way
 

swapmeet

Brotastic
Location
Arlington TX
Sorry for the huge pics... but here is my setup installed. Trying to find more pics but not having much luck.
My ski was set up for a Mag pump, so I was forced to have a custom length driveshaft made. Its 7/8" shorter than a Blaster shaft.

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Crab

thanks darin...noswad!
Location
Seattle
Has anyone considered just adding 3 inches to the exit nozzle at the same bore size to move pivot point?
 

227

Its all about the surf!
Location
Oceanside, CA
Any updates on this? Master Blaster are you still running this? Was it worth the trouble and do you recommend it?
 
Here is the 2" machined spacer and custom steering cable spacer Bad93blaster has been selling for awhile. Just have him make the cable spacer longer for the full Wear Ring.





I need a little more explanation of the steering extension. I get the extra stress put on the oem cable from the extra ware ring. Does this extension need to be installed by having access to the inside of the hull or is it just screwed onto the existing thru hull fitting.


Bad blaster has not logged on since June . Does anyone know how this system is supposed to work.
 
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