Blaster 200 HP Carbon Fibre Blaster with 155mm Pump

Filling the pump and bearing housing with oil has been around for a long time. We did it back in the 440 superstock days. Its not for everyone. For racing every little bit helps but for a surf boat, not so sure, but still cool. AWSOME build!!! More pics
 
Nice build, but who came up with the HP #'s an is that claimed or actual dyno sheet proof?
Thanks,
Dasa said they would supply us a 200HP motor for this build, I know they have an engine dyno & knowing their reputation for building excellent performance motors, we didn't feel we had to question them on the output or ask for dyno graphs. They have been around long enough to know what sort of performance their own motors produce.
Mark from Power Factor has confirmed that his Power Factor pipe can handle motors that produce in excess of 200HP.
 
Filling the pump and bearing housing with oil has been around for a long time. We did it back in the 440 superstock days. Its not for everyone. For racing every little bit helps but for a surf boat, not so sure, but still cool. AWSOME build!!! More pics

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Thanks for the feedback, yep, plenty more pics to follow!
Yeah I use to do the same in the late 80's. This is a pic of my mod 440 which I've kept all these years. Above the electrical box, next to the battery, you can see a black cap on the oil resevoir.
I aggree that this mod is not for everyone for sure, but then bolting in a 16mm stroker isn't either.
With trhis build we wanted to get the most we could out of every component.
I still like the idea of having the midshaft bearing lubed by a bath of oil, even on surf skis as I've seen so many midshaft bearings crap out after the seals have dried & let water in.
Great blaster shot on your avatar by the way!
 
wow your build quality looks 10x better than yamaha. That bulkhead is a work of art. I like the midshaft idea, I seem to go through a midshaft bearing a year. If you are going to run a bearing with a seal removed just order a 6205 bearing, same thing minus the seals.
 
wow your build quality looks 10x better than yamaha. That bulkhead is a work of art. I like the midshaft idea, I seem to go through a midshaft bearing a year. If you are going to run a bearing with a seal removed just order a 6205 bearing, same thing minus the seals.
Thanks Charlie!
Great advice on the bearing (6205).
In the midshaft housing there is 2 circlip grooves, the first groove is if you use a single race bearing, the 2nd groove is if you use a double race bearing. Found most SJ's run the single race & most blasters run the double race. You can buy the double race bearing non-shielded from a bearing supply shop (can't remember the bearing number off the top of my head), but it is 1mm thinner than the genuine Yamaha bearing (Yamaha gets many bearings custom made for them so you have to spend $80 & buy genuine, instead of $20 from your local bearing supply), so you will have to just do what we did & machine a 1mm shim.
Personally like the double race setup as the load of the midshaft is distrubuted over a wider area & supports the shaft better
 
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This is the engine mount bases bonded in place, also a pic of the engine mounts bolted to the bases.
The engine mount bases have 10mm laser cut T6 alloy, drilled & taped small plates bonded inside them for the engine mount bolts.
When we shimmed the motor in this hull, we only needed a 0.5mm shim on top of the 2 front engine mounts to acheive perfect alignment of the motor to midshaft.
The 4 engine mounts use a 3 mm alloy laser cut shim (same shape as an engine mount) between the mount & the carbon base to bring the motor to the desired height. This is because the hull is thinner in carbon/kevlar than the oem fibreglass hull & the motor would sit too low if these shims weren't used.
 
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This is the fuel tank mounts, designed for the oem blaster tank.
The Power Factor pipe sits right through the middle of the oem tank, so the tank had to go.
We wanted to not just run a 8 or 9 litre go-kart tank like most people do in standups, because we felt you had the potential to ride for longer on a Blaster compared to a standup, so wanted more fuel capacity.
Two fuel tanks looked like the only option at this stage, so we knew we had to mount somehow 2 tanks & a Power Factor pipe.
Keeping the carbon fuel tank mounts gave us 4 secure mounting points which we hoped we could use when we found the tanks we wanted & worked out some sort of secure bracket for the pipe.
The pics show the low profile battery holder, but we ended up not using this as we needed this space if we were to use twin tanks.
 
Location
Ohio
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Concerning your fuel tank issues. Have you ever thought about building a tank that will fit behind the firewall like an HX? We had been talking about that to open up the entire engine compartment for different triples. Not sure it would be freestyle friendly, but Rpot's mod hulls back in the day had removable firewalls. I always thought someone with some could build a tank that goes behind the firewall and take up a lot of the void under the battery box. Combined with moving the battery to the bottom of the hull, I think it would offer 3-4 more gallons.

Either way, ski looks awesome. Wish you guys were closer.

Scottie McKenna
 
Concerning your fuel tank issues. Have you ever thought about building a tank that will fit behind the firewall like an HX? We had been talking about that to open up the entire engine compartment for different triples. Not sure it would be freestyle friendly, but Rpot's mod hulls back in the day had removable firewalls. I always thought someone with some could build a tank that goes behind the firewall and take up a lot of the void under the battery box. Combined with moving the battery to the bottom of the hull, I think it would offer 3-4 more gallons.

Either way, ski looks awesome. Wish you guys were closer.

Scottie McKenna
Hi Scottie, great to hear from you, would be great to be closer, would love to give you a ride on the ski.
You always have good ideas. We played with heaps of tank combinations & eventualy came up with a solution.
Both these tanks are mounted already in the ski & allow us to run extra fuel if we want & distribute weight forward or back, depending which tank we fill.
Will post pics shortly of the tanks, tank mods & the mounts.
The only tank I've seen on the firewall was one made to fit in the Rickter & holds 5 litres, I've cut one up for a friend, added extra plastic & re-welded it back together. This brought it from 5 litres to 11 litres, not sure if this is the sort of tank your talking about?
Here is some pics of it
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This first pic is of the fibreglass rideplate that we designed to suit the ski, it has been sanded in to match all the lines & curves of the hull. We used this plate to make the mould.
The 2nd pic is the carbon plate straight out of the mould sitting on the modified fibreglass hull that was used to make the hull mould.
The final shot is the carbon rideplate bolted to the finished carbon hull.
The rideplate started this length, but ended up about 40mm shorter after testing.
 
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