Interesting? Perhaps a new approach......

C

CGstunts

Location
east coast fl
not trying to be a downer but a rotary will be twice as much to rebuild and will take a good amount of knowledge todo properly...thats why i swap v8s into mazda rx7s haha....would be insane power potential for a ski though
 
Mobile Chernobyl

Mobile Chernobyl

Location
1 Mile High in Colorado
That's really cool that they're releasing it as a drop in kit!

As far as new motor/engine technology - I still have my reserves for this: YASA 400

120HP continual, 200HP peak available. 160 continual ft lbs of torque to rip your arms off, 300ft lbs to pull double flat water backies! 7500 peak rpm's means it will fit current jet pumps pretty well!

Only problem is it will take 2-3 years of production before costs drop beneath $10K and then there's the whole battery pack issue. But at 42lbs its hard to beat!

/derail
 
MADMAT

MADMAT

Location
Ohio
Cool! On both of those ^^^^!!

And who cares on the 10k price!!!??? 10 and 12 mil strokers cost that now (and WDK1200) and they need rebuilt every friggin 200 gallons of gas!!
 
Mobile Chernobyl

Mobile Chernobyl

Location
1 Mile High in Colorado
MADMAT said:
Cool! On both of those ^^^^!!

And who cares on the 10k price!!!??? 10 and 12 mil strokers cost that now (and WDK1200) and they need rebuilt every friggin 200 gallons of gas!!
Click to expand...

If you were talking about the YASA (ain't it funny that the iconic 2 stroke brapper is a DASA?), $10K isn't a BAD price, but for building a prototype, it's costly. Combined battery pack weight, motor and driver would be around 100-120lbs. toss that in a 70lb hull, with 40lbs of pole and pump and you have a competitive ski!! The YASA-400 seems to be the highest power/weight motor out there right now from my "research". Only problem is completely isolating the 700VDC neccesary to power it from ANYTHING lol... 700VDC@ whatever current is available would probably kill the rider if you got a little shock in the surf.
 
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Melmack

Melmack

(Timothy)
Location
New Braunfels, TX
This is actually a proven engine. Not new tech at all. I have been trying to get rights to this engine for two years now. Apparently, this deal is part of what blocked me(That and the fact that I'm broke and not Rick Roy) :) This basic design is used in Parajet powered paragliders, Axiro Kart engines in goverment UAVs all in single rotor form. So its proven tech. The biggest problem I have found is that no one wants to mass produce these engines for us. If they where to do so, they could bring the cost down tremendously in no time. This engine could revive the small PWC market, bring back the blaster and X2s as well as save stand ups. I hope this actually pans out and these guys realize that selling to the masses at a more affordable price is the way to go. Otherwise it will be out of reach and die off soon like so many other great ideas.
 
CARBONX2

CARBONX2

Location
South Africa
The peak of 7500rpm is where the motor will run to, probably peak hp at 4000rpm and then tails off to a max rpm of 7500rpm. I have been searching for the last year for a motor that has peak hp @ 7000rpm, the closest I can find is for the Tesla and they don't sell them separate.

Mobile Chernobyl said:
That's really cool that they're releasing it as a drop in kit!

As far as new motor/engine technology - I still have my reserves for this: YASA 400

120HP continual, 200HP peak available. 160 continual ft lbs of torque to rip your arms off, 300ft lbs to pull double flat water backies! 7500 peak rpm's means it will fit current jet pumps pretty well!

Only problem is it will take 2-3 years of production before costs drop beneath $10K and then there's the whole battery pack issue. But at 42lbs its hard to beat!

/derail
Click to expand...
 
Mobile Chernobyl

Mobile Chernobyl

Location
1 Mile High in Colorado
CARBONX2 said:
The peak of 7500rpm is where the motor will run to, probably peak hp at 4000rpm and then tails off to a max rpm of 7500rpm. I have been searching for the last year for a motor that has peak hp @ 7000rpm, the closest I can find is for the Tesla and they don't sell them separate.
Click to expand...

It's still rated at ~150 ft lbs of torque @ 7500rpm, so I wouldn't call that completely run out... Check out the torque/rpm curve for yourself:
http://www.yasamotors.com/sites/default/files/YASA-400-Low.pdf
-Compared to a 701 motor which puts out about 70-80 ft-lbs @ ~7000rpm that isn't too shabby?
-> ATP Video of 701 on dyno http://www.youtube.com/watch?v=mK61oPIX5yM

These things are pretty impressive, and can easily compete with the 3ph induction motors of the roadster, but the 400 model is not largely tested by consumers yet to back up those numbers....
 
Melmack

Melmack

(Timothy)
Location
New Braunfels, TX
Lets put it simple guys, a 1.3ltr Mazda can hang with a 3.5ltr v6 sports car. This engine is probably about 700ccs. It will eat a 701 for breakfast and then move on to munch on a DASA or two for lunch. Its no comparison.
 
BoostedBseries

BoostedBseries

BOOST!
Location
Dirty River
I NEED ONE OF THESE! But it needs boost then id like to see any 2 stroke touch it! And for comparison a "refresh" rebuild of a 13b costs about 800-1200$ depending on components chosen
 
kraqus

kraqus

Site Supporter
Location
Great State of Texas
Cool video:

[video=youtube;qpjxNRKT5Bo]http://www.youtube.com/watch?NR=1&v=qpjxNRKT5Bo&feature=endscreen[/video]





Benny
 
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