My Impulse 31 misfortune

[Diesel6401]

Thanks I will get one 42x55 on order. Please keep in mind I will still be using the stock 60amp esc

60amp pb esc, ul1 motor and grim 42x55 is a good reliable setup in a sv27 on 4s. Make sure you have good packs.

[de-pro]

sure thing. thanks for the feed back

[Brushless55]

The higher C rating did not cause the esc to fry, the size prop you used did. The higher the C rating the better when it comes to boating. The batteries only supply the amount of amps that the motor demands. Just because your batteries can put of more amps doesn't actually mean the extra amps are being used. The motor pulls the amps the esc recognizes the amp load and request that amount of amps from the batteries. Higher c rating didn't have anything to do with that. A x447 if a very LARGE prop especially on ul1 motor.

I think this thinking comes from the traxxas fan boys?

But I am looking forward to the run in this hull on that big Leopard...

[burgerchow1]

Impulse 31 misfortune

You think your impulse had it hard, mine is like a timex watch. Takes a lickin but keeps on ticking. Was t-boned by another impulse, so missing a big chunk of the side ( patched up with hockey tape, but can still see fiberglass). Then I installed ul1 motor in it, got carried away at the pond and t-boned my pt 109 ( which my son was driving) at full speed. The whole front end of the impulse was lodged into the side of the pt109 about 8 inches deep. Pt109 is a write-off, but the impulse still works.
I think the impulse is indestructible. Awesome boat, almost as fun as my motley crew( when the motley crew is working)
I've also got the impulse 26 for my 4 yr old to run. Awesome boat for $160. The thing isn't super fast, but is as agile
As a tugboat, and a 2s lipo lasts a half hour with room to spare. great retrieval boat

[de-pro]

I'm glad your having fun with that boat...lol
Yes I only cooked the original ESC and mostly because I wanted more speed. Never had much luck with RTR electronics, not even in offroad vehicles. Also due to lack of experience I picked up the prop. But I tell you she flys with that prop.
Typically people buy prop based on their electronics, I bought electronics based on my prop....lol
So my leopard 4074 and seaking 180 are on their way. cant wait to try them out.

You think your impulse had it hard, mine is like a timex watch. Takes a lickin but keeps on ticking. Was t-boned by another impulse, so missing a big chunk of the side ( patched up with hockey tape, but can still see fiberglass). Then I installed ul1 motor in it, got carried away at the pond and t-boned my pt 109 ( which my son was driving) at full speed. The whole front end of the impulse was lodged into the side of the pt109 about 8 inches deep. Pt109 is a write-off, but the impulse still works.
I think the impulse is indestructible. Awesome boat, almost as fun as my motley crew( when the motley crew is working)
I've also got the impulse 26 for my 4 yr old to run. Awesome boat for $160. The thing isn't super fast, but is as agile
As a tugboat, and a 2s lipo lasts a half hour with room to spare. great retrieval boat

[de-pro]

So I finally got the new electronics. Leopard 4074 2200kv and Seaking 180 esc running on 4s1p. I will be trying the new setup this weekend. Going to try with the stock prop first then the x447. Before I do that, I just need to make sure I am not over-proping this beast. Any thoughts?

[Diesel6401]

So I finally got the new electronics. Leopard 4074 2200kv and Seaking 180 esc running on 4s1p. I will be trying the new setup this weekend. Going to try with the stock prop first then the x447. Before I do that, I just need to make sure I am not over-proping this beast. Any thoughts?

The setup is much more a 4s2p setup. I ran that same setup in a 32" mono and data logged 160amp+ spikes. I would not run that prop on 1p. I would prop down to a x442 or so until you get a 2p setup. That motor can pull some serious amps and your batts need to be up to the task. Get some batteries that can handle the load. Turnigy, Zippy, Sky Lipos, Blue Lipos, Gens Ace, TP, Hyperion have all been proven in boating.

[de-pro]

got some older flightmax 5000 30c (the light blue ones) and some newer dark blue ones, Turnigy 5000 30c and Gens Ace 5000 40c. More Gens Ace on order. Nothing 2p unless I use the two 4s in parallel

[Diesel6401]

got some older flightmax 5000 30c (the light blue ones) and some newer dark blue ones, Turnigy 5000 30c and Gens Ace 5000 40c. More Gens Ace on order. Nothing 2p unless I use the two 4s in parallel

Yea your gonna need two 4s packs or you can use four 2s pack in a series/parallel combination (that gets crowded though). You def need a 4s2p setup though with that prop or things may get ugly.... prop down until get a 2p setup!

[de-pro]

never been a huge fan of running two batteries in parallel. Tried it before and cells discharge wacky but worth the try. So your saying the Gens Ace 200 amp constant discharge wont cut it?
What speeds were you getting in your setup?
btw, cool Utube channel :)

[Diesel6401]

never been a huge fan of running two batteries in parallel. Tried it before and cells discharge wacky but worth the try. So your saying the Gens Ace 200 amp constant discharge wont cut it?
What speeds were you getting in your setup?
btw, cool Utube channel :)

Parallel is def benefical and is without a doubt needed in this situation. No I don't think the 200amp gens aces will cut it, i think they'll eventually puff and/or fail. I was running high 40s to low 50s with that x447 I then switched out to a m645 and started running mid 50s, but that prop heats things up fast. I really have to watch my runtime with that m645. I'm running two 4s 3600mah 30-40c turnigy batts in my Pursuit 32" mono, but i really should be running more like two 4000mah 40c/50c or something like that. My 7200mah 30C setup is getting worked. You need your batts to be able to supply A LOT of amps. I am prob gonna step down to a m445 and leave the m645 for when i feel the need to go all out. I am however running a leopard 4074 1774kv with a x447 on a 1p setup in a 29" cat. The fact the 1774kv has more torque and pulls less amps then my 2200kv motor and is in a smaller cat (my cat has less friction then the larger mono = less drag) allows to me run a 1p setup and i am running 6000mah 25/50 nano-techs in that setup with great results.

Thanks for youtube comment!

[de-pro]

Thanks for the great info. I dont have an x442 but have a 42x55 on order also can get my hands on an x642. Any thoughts?
All batteries puff a bit under load. the degree of it and how fast they go down will determine if they survive.

[Diesel6401]

Thanks for the great info. I dont have an x442 but have a 42x55 on order also can get my hands on an x642. Any thoughts?
All batteries puff a bit under load. the degree of it and how fast they go down will determine if they survive.

42x55 should work just fine on 4s1p. some puffing is related to how tight the shrink wrap is around the cells.

[de-pro]

Any thoughts on a x642? I picked one up from a friend

[Diesel6401]

Any thoughts on a x642? I picked one up from a friend

Should be fine, i wouldn't go any bigger on 1p.

Do you own a eagletree data logger? Awesome and must have tool for boaters!