FX-1 Rocker and pump mod for my backup ski

[special fx]

is there no need(benifit) to make the intake tunnel bigger 4 surf....,wont you be under feeding the pump???

I haven't noticed any downside to maintaining the stock pump tunnel. I've been running the same set up on my other FX for over 2 years now and it rips. I think you would want to change it if you were trying to build build a flat water ski, but for surf and wide open high speed carving on flat, this set up works great. Having the pump set back 2-3/4" keeps plenty of water in front of the prop for good hook up.

 

[simofx-1]

awesome reply was just checking, my 140mm build is drawing closer as my fxpump is now marshmallow e d.haha. so hard to find parts in new zealand =$$$.