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XFACTOR heres my advice, the Screamer(in its current state) is a great sport motor(per Mark F.) for GAS Hull conversions. I have built 2 Dumas scales with the same architecture as your Circus. Unless you heavily modify the hull you wont be able to package the Screamer, XL ESC and 10S2P Lipo into the hull. Even if you modify the boat if will be a pain working on the powertrain plus you will have a heavy boat. Go with the Scorpion, thats what i run in my (Dumas) Atlas. It will get you into the low 60s with the right setup(50-52mm prop), timing setting #2. Install the Screamer in Large Monos or Cats where you have plenty of room to package it.
SCOTT/ VINCENT you know the 770 kv motor will be the ticket for the high speed EDF guys and the serious bigboat racers. Rumors have been flying about this Kv wind for a while now. I know its probably going to need a few more amps to run than the current wind. Thanks for bringing it out(Scott, told you so)! Now i have to buy another Screamer. These monsters marine motors are so cool!~~~~~~~~`Mach 5 racing'~~~~~~~~~~~~
****2008/9 MMEU LSO, 2008 LSH CHAMP****
~~~~~~~70 MPH Club Member!~~~~~~~~~Comment
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Will the new version have the same can diameter?Comment
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Exactly the same, you will not be able to tell them apart frm looking at them
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Nice! What kind of speed do you think you were getting??
She handles the water nice.
ScottComment
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Looks good to me. Id like to see it on 12s.Comment
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Hi Mark,
What EXACT motor are you comparing us against? What Kv? How many amps are we pulling on 10S with ours and the current "Hor" set up?Comment
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Me too!
In the mean time we need info! If you have one of these motors and have ran it please post your setup.
We need setups and props and battery sizes and ratings so we can move forward. We are working very hard to bring you just what you want. But we will need your help to get there.
Thanks
ScottComment
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Hi Mark,
Do you have a video of the other motor in the same boat? I'd like to see it as well
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that video is now on our main page of the website as this weeks featured video!
ScottComment
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Based on randys run It could swing a x460/x457 with ease. I know the motor calc on a scorpion 4035 800 spits out 115 amps with a 457 @69 mph. Theres som footage of someone running a scorpion 4035 800 with an x 457 on 10s lipo and he's gps at 64mph thats pretty close.Somebody try a true nitro prop on this beast like a 1655 or 1657 its on youtube just type in scorpion 4035Comment
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My setup is in post 138. I have no data logging equipment so I dont have anything more than that. Best I can do is next time out I can do a certain number of laps and see how much mah my packs used up. Bob if you could bring some data equipment with you then we can put it in the boat when we go out together. This is the only video I can find of my boat. Sorry its my SAW setup so different 2230 motor than my norm. Ist pass was 95 mph and the second one was 105 mph. I will glady swap motors Bob when we go test so you can see first hand. I know the boat looks good but the speed is deceiving in the video. If you could see it run with another gas boat you would know what I'm talking about.
Mark
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It seems like the screamer would compare more to the new 1900zr series nue's for gas conversionsComment
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Mark,
I am building a new motor to take for our test session
I will try and have a 770 Kv and an 820 Kv so we can just swap onsite after we run them. I think Scott has the GPS expander for the ET logger. I have the logger with rpm sensor so we can get good info, but if we have the GPS too we can get exact info to cross test/compare Trust me guys, those that don't know me, we don't EVER want to be "just another" motor!! We go after it to be THE BEST option out there!! If my boat/car/jet can't be the fastest one at the event then I'm not done working yet!
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