Miss Geico 4s vs Spartan 6s

[Diesel6401]

What do you think about an X440/3 running 5s and 6s on this motor?

Fully charged set of lipos at 6s your looking at 55,000 unloaded rpm's... That's a crap load... Even 5s is over 45k unloaded. You would def have to prop small. I myself wouldn't want to risk my motor/esc trying it. I stick to 4s on that motor. Chasing speed isn't worth blowing my setup.

What does SAW stand for? Your the second person to say that to me. I've been around rc for many many years mostly gas but this is my first real boat

Straight-A-Way racing. Meaning back 2 back speed passes. Goal is straight speed, but A LOT of stress on the setup. Not for the faint of heart and you have to have some $$$ in your pocket.

[Darin Jordan]

I know the new AQ cat with a Grim 42x55 on stock motor sees 47-50mph on 4s
so stock AQ 4s vs stock spartan on 6s, the Aquacraft could run away from the spartan

A Stock Miss Geico on 4S with an ABC 45x55 or a Prather 230 will do 47-50 mph as well... for 4 minutes on an Offshore coarse...

Offshore is going to be a BLAST this season!!

[Brushless55]

A Stock Miss Geico on 4S with an ABC 45x55 or a Prather 230 will do 47-50 mph as well... for 4 minutes on an Offshore coarse...

Offshore is going to be a BLAST this season!!

It's going to be a fun class bro!
I need to stock up on some 4s packs

[Diesel6401]

Also would you suggest a lower kv motor then to run more cells? I have the 2 3s lipos on the way so I nees to find a use for them weather I change motors or prop down either way there has to be away to use them safely

Yes lower kv higher voltage. 1300-1500 kv range is good for 6s.


This will help you.

[Brushless55]

Yes lower kv higher voltage. 1300-1500 kv range is good for 6s.


This will help you.

Man, you keep coming up with good stuff bro

[Diesel6401]

Man, you keep coming up with good stuff bro

Properchopper posted that a while ago, thought it was cool so I saved it...

[Brushless55]

Properchopper posted that a while ago, thought it was cool so I saved it...

I justed saved it to

[Darin Jordan]

Yes lower kv higher voltage. 1300-1500 kv range is good for 6s.


This will help you.

Be sure to keep in mind, however, that GOOD Lipos will hold much more Voltage under these loads than the Nomimal 3.7V/cell, which is what that chart is based on... So, for 6S, for the first minute or so of the discharge, at least, you'll be looking at more like 24V, not 22.2V.... My Thunder Powers tend to maintain about 3'9-4.1V/cell under these loads for a decent portion of the discharge. That's some additional RPM...

[wilsta67]

That motor can take more prop then a x642 liked mentioned. A m445 and that prather you have would work great but running 5s & 6s on that 2200kv motor unless your running SAW its just not the best choice! That would be a very VERY hot setup and I wouldn't recommend it especially being new to the hobby. JMHO

sorry for being a dumb ass but wat is the term saw and hot set up??
im running a cc1515 2200kv with a t-180 in a spartan and it runs great on 6s
im thinking of doing the same set up in my mg when it finally gets here but run it on 4s.
here is the vid of the s.h.i.t.b.o.x in action.

http://www.youtube.com/watch?v=8dTyfi8_agc

[martin]

sorry for being a dumb ass but wat is the term saw and hot set up??
im running a cc1515 2200kv with a t-180 in a spartan and it runs great on 6s
im thinking of doing the same set up in my mg when it finally gets here but run it on 4s.
here is the vid of the s.h.i.t.b.o.x in action.
http://www.youtube.com/watch?v=8dTyfi8_agc

The question is for how long before you get problems, At almost 49000rpm unloaded & probably more on new cells. It my be slightly faster than other set ups using 1500kv on 6s but i know which one will last the longer. Its not just motor & esc that your pushing at those revs but drive shafts as well. A hot set up is basically to high kv, to high voltage for that kv, To big prop for given revs, excessive amp draw. Martin.

[bbosncali]

A Stock Miss Geico on 4S with an ABC 45x55 or a Prather 230 will do 47-50 mph as well... for 4 minutes on an Offshore coarse...

Offshore is going to be a BLAST this season!!

Really???? Then what am I doing wrong with my setup to only get mid 40's????

[bbosncali]

sorry for being a dumb ass but wat is the term saw and hot set up??
im running a cc1515 2200kv with a t-180 in a spartan and it runs great on 6s
im thinking of doing the same set up in my mg when it finally gets here but run it on 4s.
here is the vid of the s.h.i.t.b.o.x in action.
http://www.youtube.com/watch?v=8dTyfi8_agc

What prop are you running with that setup??

[Brushless55]

hey speaking of lower kv motors, did you ship out my new MG motor, esc, and card yet?

[bbosncali]

Shipped it out the next day priority... tracking number is available at pp but you should get it today anyways

[Darin Jordan]

Really???? Then what am I doing wrong with my setup to only get mid 40's????

Could be any number of things...

Based on past experience, You and I could be running the EXACT same parts, and your boat might be 2-3mph faster than mine, because there is a LOT in how those parts are prepped.

Could be I'm running fresher or better quality batteries. Could be that my batteries were warmer to start out with, which helps increase their voltage and amp delivery.

Most likely, it will come down to the props. My props aren't stock... they aren't just sharpened and balanced, and they likely have a little bit of tweaking and tuning on them to make them work...

AND, it could have something to do with it being part of my "job" with ProBoat to push the limits of the equipment to find out how much it can take, so I'm willing to push things to more critical levels than I'd recommend for the average user.

However, that 45x55 on there seems to be a "safe" setup (still pulling 70+ amps) that is good for 46-47 mph consistently... The Prather 230 pulled a few more amps, but showed 47-49mph on consecutive passes (EagleTree GPS).

There are a few other props that can work, but again, all of mine have been poked and prodded and tweaked and bent and thinned and ... and ... and ... so your results may vary.

The key is ARE YOU HAVING FUN!???