ML BOATWORKS GSX 380 Q-Sport Build

[Speed810]

Hey Rat....I’ve been running the swordfish 240 HV for 3 years now in my Q boat. No problems at all. Matter fact they now have the new X series. Check them out.

IMO...those SK 180’s will not do the job in a Q boat. Pulling way to many amps.
I have an X200 amp in one of my P-sport boats and it works perfectly.

So far the swordfish ESC’s have not let me down.

[rat350r]

Speed810

Thanks for the quick reply. if it is not too much trouble could you post some pictures of the battery and ESC location.
Also did the weight ready to run come out to be and where is the GC?

Thanks

[Speed810]

Q esc

Hey Rat... the layout for batteries and ESC Is similar to this picture. This was a new ML 380 that I built for a buddy. The only difference was that he is using the Mamba XL 220amp. ESC. The Swordfish 240 will be right up against the bulkhead except you’ll stand it up on edge instead of flat in the tub.
Depending on where your motor is mounted this should give you plenty of room to move your 6S packs around for obtaining the correct CG.

I have been finding that the ML boats like the CG right around 1 1/8” to 1 1/4” from the trailing edge of the sponson. Also note that the motor I’ve been using is the 5692.

Hope this helps

[rat350r]

Speed810,

A picture is worth a thousand words, this helps a ton. The motor size was a typo on my part I am also using the 5692 in the same location as your build. Thanks for the info.

Have a great day

[rat350r]

Speed810,

Did you experience any issues with getting the boat up on plain from a dead start. My boat tends to act more like submarine.

[Speed810]

Speed810,

Did you experience any issues with getting the boat up on plain from a dead start. My boat tends to act more like submarine.

Hey Rat.... Sorry its been so long on getting back to ya. Been a lot going on since the 1st part of Sept. with family stuff... Yes my 380 would act like a sub all the time.
I set the CG back to around the 1.5' to 1.8' behind the sponson heel. Had to add weight to the transom. Did some more tweaking on the strut and raised it so it would kick the front up. This all seemed to help, but its still not as great as I was hoping for. It is blistering fast...but very unstable. I have had so many times when it will be running down the front or back stretch, full out, stable and then bang...out of no where it dives right down. Sometimes I won't see it again for 1 to 2 minutes when it finally comes back up. I have had the darn thing suck in the bottom mud for 5 minutes and then all of sudden...boink...it pops up.

Let me know if you were able to owrk out any of your problems with it and we'll compare notes.

[rat350r]

Speed810,

I got out this past Sunday with my GSX 380. Over the winter I moved the motor aft 1". I put an X452 prop on it which is a little small, and for the first time the boat from a dead start jumped up on plane and took off fine. I have no idea what kind of speed it was running but the boat finished two runs of 7 laps around our race course with no issues. Everything came back to shore cool but I suspect the water was chilly helping keep things cool. I need to check where the balance point is and I will get back to you. I hope 2020 is a better boating year than last year. I was thinking of changing my initials last year to DNF.

[Speed810]

Speed810,

I got out this past Sunday with my GSX 380. Over the winter I moved the motor aft 1". I put an X452 prop on it which is a little small, and for the first time the boat from a dead start jumped up on plane and took off fine. I have no idea what kind of speed it was running but the boat finished two runs of 7 laps around our race course with no issues. Everything came back to shore cool but I suspect the water was chilly helping keep things cool. I need to check where the balance point is and I will get back to you. I hope 2020 is a better boating year than last year. I was thinking of changing my initials last year to DNF.

Hey Rat....
Sure be interesting to know where the new COG ends up. Can you give me a measurement from the back of the sponson bulkhead to the top edge of the motor? We'll see if we are close on yours and the second one I built.....LOL I know on last years 380 build for my buddy I ended up with the motor about an inch aft of where mine is. Figure I'll tear the motor out of mine and relocate the motor mount and stuffing box. Sure seemed to make a difference on my buddies boat.