Waterdawg Blaster 800

[FLY6584]

So about a year ago I had a chance to buy back my old blaster hull from when I was kid from another guy on the boards(it was the exact same ski I had back in middle school/high school). The ski had been totally restored with a killer paint job and still had some goodies on it like UMI Steering, etc., but it was missing the motor.

Anyways as most of you know I sold the superjet a couple months ago to help pay for my wedding and I put a little aside to hopefully one day build up this blaster. Being that I'm in the Air Force there is a good chance that I won't live near any surf for a while so I really want to turn this into a competitive race ski and possibly hit some local races, but if nothing else run bouys on the weekend at the lake near my base.

Well for months now I have been trying to decide which way to go with this thing. Obviously an 8mil PV Lamey would be ideal, but that is WAY out of the budget so I started thinking about big bore 62t's, etc. After looking around and pricing things out even a big bore is pretty pricey and you really don't have much room to grow not to mention if you want to be anywhere near as fast as a Lamey you've got to bump up the compression and run race gas which also hurts the reliability and the wallet.

After seeing thread after thread about 66e conversions in superjets it occured to me to look into dropping a 66e in the blaster. Like everyone says you really can't beat the bang for your buck and it's basically like having a super cheap 10 mil stroker.

So from there I started to think about it some more and referred back to an old thread about a prior conversion(Blaster800's conversion) just to get some ideas. I realized I didn't want to take the route he chose with a stock exhaust because you are not allowed to modify the top deck of the hull when racing Sport Mod so I had to immediately rule that out.

From there I started talking with Jeff about using his 66e conversion kit in my blaster and he explained to me that it would work and has been done before so that's where I am at right now.

I just want to get everyone's feedback and see if this is a good route to take. I mean you figure you can pick up a complete stock 66e for 1300-1400 and Waterdawg's conversion kit for 1600 and you've got a 130hp+ engine with ton's of room to grow. And to top it off it's reliable and runs on pump gas.

I figure from there I can add things like porting, total loss, girdled heads, bigger carbs, mag pump, hull extensions etc. down the road to make it a very competitive sport class boat.:woot:

 

[MADMAT]

Shes purdy.

 

[FLY6584]

I also have a few questions that maybe some of ya'll can answer...

1. I keep reading that the 66e engine is setup to be more of a mid-top end motor which is perfectly fine with me and that there are a few things you have to do to it to get it to hit hard off the bottom. My question is what are those things ya'll are doing to get it to hit hard off the bottom? I'm not saying I don't want it to hit hard off the bottom, because I do, I just want to make sure that the pipe, etc. is not what is making the 66e such a good freestyle low end setup.

2. Kind of goes with the last question... As far as the pipe goes, what do most people think of it? Is it more of a low end pipe like a bpipe or more of an all around pipe like a dry pipe? Jeff said his pipe will turn 7800 RPM's on a 66e, but I'm afraid that might not be enough.

3. Has anyone ever even tried to run the waterdawg pipe in a blaster hull or have even tried fitting it around the gas tank? You see I'm pretty sure sport mod rules don't allow aftermarket gas tanks so I would need the pipe to be able to wrap around the gas tank.

4. Does anyone know if the mounting system will definitely work in the blaster? I'm a bit concerned that it might not work due to the fact that the blaster mounts are straight and superjet mounts are angled. Not too sure though because I really have no idea how the mounting system works.

Thanks for any advice/help ya'll can provide me with.:biggthumpup:

 

[oxnard111]

dang that square is pimp.

 

[SuperJETT]

I'm not sure, is using a totally different engine legal in sport mod, considering that a different gas tank or modding the topdeck aren't?

 

[superramjet]

you can use diffent motors in sport class because it is the only class with mod rules. wd pipe can be cut and reangled to clear your gas tank. 7800rpm is enough especially because you'd have more torque to turn a larger prop at those rpms. I've wanted to do a blaster build for a while and even got started on one but never got past mockup before the ADD set in.

 

[FLY6584]

dang that square is pimp.

Not mine. Well it actually used to be mine. That was my first standup. I got that back in middle school also and sold it with my blaster when I turned 16 and needed money for a car. I always regretted selling them, but did get the chance to buy the blaster back. The sj is actually flacarncycle's. He's got an X-Jet now, but he was trying to convert the square into a round a while back after the square got away from him after a faulty kill switch.:eek5:

 

[kurtwolff]

The WDK kit will work 100% as far as motor mounting - you are correct in saying that the mounts are different between the B1 and SJ, but they end up being the same because the B1 incorporates the angle into the hull, whereas the SJ mount incorporates the angle into the mount. You may want to go w/ gas valves and bump compression up - also you don't need to use the WDK intake manifold, you can just use the pipe and the mounting kit - but you may be able to use a different pipe that may be cheaper. I have been contemplating the same project, but for freeride - good luck!

 

[FLY6584]

The WDK kit will work 100% as far as motor mounting - you are correct in saying that the mounts are different between the B1 and SJ, but they end up being the same because the B1 incorporates the angle into the hull, whereas the SJ mount incorporates the angle into the mount. You may want to go w/ gas valves and bump compression up - also you don't need to use the WDK intake manifold, you can just use the pipe and the mounting kit - but you may be able to use a different pipe that may be cheaper. I have been contemplating the same project, but for freeride - good luck!

Awesome. That's good to hear.

Someone did mention thought that if you use the WD mounting kit in the blaster to mount the 66e straight up then the exhaust manifold hit's the hull and won't fit which basically eliminates that option right there being that I can't cut into the hull.

I definitely plan on eventually bumping up the compression and running gas valves, but for now this is all that's in the budget. The cool part though is that it will still be a rocketship and still have so much more room for bolt on mods that will make it that much faster.

 

[FLY6584]

I'm also considering doing what Bonzia Bob did and actually heating up the SMC plates and moving them forward. Would this even be possibly being that the entire inside of the hull is SMC? If you look at the picture you'll see that the back SMC plates would actually have to rest on the front ones if I were to move them forward.:dunno:

 

[superramjet]

you'd have cut the front half of the engine pods and remove them, they need to go forward 2 inch, the back motor mount stay where they are. no need to deal with a differnt short shaft. The pod where the waterbox rests will need to be trimmed so that you can more your other forward. I'd reglue them with some good glue and then lay some glass over everything to tie it together and make it stronger where there are open areas. Take the wd pipe, i was able to order mine in pieces so i could have it welded to clear my sj tank. Lay it out almost straight and maybe put a waterbox in the nose and then oem exhaust tube out the back

 

[WaveDemon]

I'm also considering doing what Bonzia Bob did and actually heating up the SMC plates and moving them forward. Would this even be possibly being that the entire inside of the hull is SMC? If you look at the picture you'll see that the back SMC plates would actually have to rest on the front ones if I were to move them forward.:dunno:

it would be easier if the front mounts were on the same smc plate but they're not. you'd have to cut that plate.

 

[FLY6584]

you'd have cut the front half of the engine pods and remove them, they need to go forward 2 inch, the back motor mount stay where they are. no need to deal with a differnt short shaft. The pod where the waterbox rests will need to be trimmed so that you can more your other forward. I'd reglue them with some good glue and then lay some glass over everything to tie it together and make it stronger where there are open areas. Take the wd pipe, i was able to order mine in pieces so i could have it welded to clear my sj tank. Lay it out almost straight and maybe put a waterbox in the nose and then oem exhaust tube out the back

Cool. After you pm'd me and while you were typing this I went ahead and drew up something in paint to show what everyone what you were talking about.

You're saying that you would cut the red shaded portion out then pull the green portion up and move it forward. After glueing it back down you would then reinforce the whole area.

 

[FLY6584]

So it sounds like it's a catch 22.

If you go with the Waterdawg Mounting kit and save the time/work of having to relocate mounts then the pipe won't fit and if you decide to move the mounts yourself then you end up having to take on all of that extra work and still don't know for sure if the pipe will fit.

Trust me I'd love to turn this into a huge build project and do it myself the right and cheaper way, but time is something I don't have. I was really hoping it would all just bolt in like Jeff said.

Maybe Jeff can do a quick mock up of his mounting kit and manifold in a blaster hull and take pictures for all of us to see. If it fits like he say's it will then I'll order a conversion kit that day.

 

[FLY6584]

Well Jeff just pm'd me and assured me that the 66e will fit in the blaster using his kit and the pipe/manifold will clear the hull and gas tank.

As soon as I see pictures of the setup mocked up in a blaster hull then I'll be ordering the kit that day. So if anyone near Jeff has an empty blaster hull PLEASE drop that thing off to Jeff so he can borrow it to mock up this setup and ensure I won't have to modify the hull at all or have to run an aftermarket gas tank.

 

[marz831]

What if you used a SJ tank? They are definitely narrower. You'd just have to rig up some straps.

 

[FLY6584]

What if you used a SJ tank? They are definitely narrower. You'd just have to rig up some straps.

I would do that in a heart beat, but then the boat wouldn't be sport mod legal.

 

[marz831]

I thought the tank couldn't be "aftermarket" ???

 

[FLY6584]

I thought the tank couldn't be "aftermarket" ???

Nope I'm pretty sure it has to be the original blaster equipment. It also has to use the stock filler neck so you are very limited on how far you can move the tank around in the hull.

 

[blaster800]

you really dont have to cut out the old front mounts , leave them place and mould new front ones like was done on mine and add some glass fabric over the new moulded pedistals , I already did all the homework on that one . you wont have to put as much glass on as i did mine was a little overkill on the glass dept ! my mounts are still rock solid ! FWIW