Thread Tools
Feb 08, 2020, 02:54 PM
Registered User
tware's Avatar
I'm going back to stock.. I've gotten to Mini-z cars and a few other expensive RC projects. Dont feel like finding a water cooled solution for the brushless esc. It ran great on the 30A Hobbywing Car esc, it might be fine, but things did get pretty warm, but it was on a cool day, it might have needed water cooling for running in the summer. Although, I expect it would be as easy as the JetJam to drill the pickup, I just dont have the time. I have a Park 400 4200kv (madness, can still self right) and a Park 370 5400kv (would expect the speed but never tested the self righthing). They both bolt up without modification. If you want one or both of them, PM me.
Sign up now
to remove ads between posts
Feb 08, 2020, 11:02 PM
Registered User
I was surprised as well. I expected the bec to burn or the servo but the servo runs the same slow ass speed..
Most esc can handle more voltage if the caps are rated for it. Bec not so much.
Most impressive is the motor only being warm.
Last edited by jtthebiggafigga; Feb 08, 2020 at 11:33 PM.
Feb 09, 2020, 06:39 AM
Registered User
Quote:
Originally Posted by jtthebiggafigga
I was surprised as well. I expected the bec to burn or the servo but the servo runs the same slow ass speed..
Most esc can handle more voltage if the caps are rated for it. Bec not so much.
Most impressive is the motor only being warm.
I changed my servo out to a 9 gram digital metal gear. It's much better.
Feb 10, 2020, 08:17 AM
Registered User
What diameter has the jet drive?
Is it the same as the Tear Into (20mm)?

I'd be keen on the bare hull, maybe with the jet... the crappy radio would be for the birds anyway - are you OK with it?
Feb 10, 2020, 05:22 PM
Registered User
So today I drove it for a while in a creek. Here's the video

Sprint Jet 9" 3S 500 Almost smoked it. (1 min 38 sec)


Sloppy one handed driving...

Part throttle is really hard on it on 3s with the stock system. . When I opened it up I could smell it and see the faintest hint of smoke coming out. Going brushless
Feb 19, 2020, 02:08 AM
Registered User
3s 450mAh ,4500kv dynamite motor, castle mamba micro 2

Perfect perfomance but the motor is almost hot after 10 mins. or so. I think I will do what I use to do with my nqd outrunner and let a little water in the boat to splash cool the motor. Works pretty well and I always oil and dry my boats after every run.


Jane's Creek 2-11-20 4500kv 3s 4 (1 min 38 sec)
Last edited by jtthebiggafigga; Feb 19, 2020 at 02:17 AM.
Feb 19, 2020, 02:15 AM
Registered User
2s 500mAh ,4500kv dynamite motor, castle mamba micro 2

Ok but not as fun. Water was a little lower than the 3s day. My motor likes 2s better but I like 3s better. Run time is good on both for me. The loose fit of the impeller and housing make the insane revs work. And talk about priming. I even have a little reverse with the weight of the 3s pack!!

Jane's Creek 2s Brushless Dynamite 4500 4 (1 min 25 sec)
Mar 27, 2020, 08:46 PM
Which stick makes it go up?
hobbyjumper's Avatar
First time out in 2020. The electronics got wet before the camera started rolling, and things got dicey.

Jet Buoy Jet Grille. RC Truck and Boat Expedition. (6 min 29 sec)


Later on the bench, I did a waterproofing routine below decks, hoping to be back on the water the next day.
Last edited by hobbyjumper; Mar 28, 2020 at 03:10 PM.
Mar 28, 2020, 03:06 PM
Which stick makes it go up?
hobbyjumper's Avatar
Waterproofing worked, conditions were ideal to do what I've been meaning to do for years.

Up The Crick - RC Jet Boat Expedition (10 min 11 sec)


Wish the hull would plane on any throttle setting other than full, but apart from that, it's a good little boat
Last edited by hobbyjumper; Mar 28, 2020 at 03:12 PM.
Apr 02, 2020, 10:40 AM
Registered User
Can you say something about the jet drive?

Is it the same as in the Tear Into (20mm)?
Are spare parts available and possibly exchangeable with similar units?


Quick Reply
Message:

Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion Swashdrive jetsprint for sale mickieb49 Jet Drive Boats 6 Dec 01, 2017 05:42 PM
Discussion How to Lubricate/ Grease Proboat React 9 Drive Shaft? Joel1316 Micro and Sub-Micro Boats 8 Jun 14, 2017 11:07 AM
Article Proboat Blackjack 9 - 9-inch Brushed RTR Catamaran Jim T. Graham Racing Boats - Electric 42 Oct 11, 2016 09:34 AM
Mini-Review Proboats REACT 9 AustinTatious Micro and Sub-Micro Boats 2 Mar 07, 2016 08:36 PM
Discussion Mickiebeez 1/6 Jetsprints mickieb49 Racing Boats - Electric 12 Feb 20, 2014 05:17 PM