Traxxas Spartan

[stringfly]

Traxxas recommends only a 42mm prop (max) with the stock set up. The stock composite prop is a 42mm with a 1.4 pitch. Will need to try a Octura X442 on it.

Stringfly <>+++

[Make-a-Wake]

Yep, much sharper and less flex outta do it well...................

[oscarel]

That makes me feel better, that's about 16% left in your packs...
Did the LVC kick in durring the run?

It didn't kick in during the run but after I pulled it in after the 3rd run and I tried for another.

I got my GPS worked out so I'm going to try one set of runs tonight with 4s and 6s. Apparently the GPS doesn't like more than 5.85V..

One more thing to note, I"m looking at the manual and for the ESC it says 80A continuous and 300A peak so it's got a pretty beefy yet small ESC.

[oscarel]

Traxxas recommends only a 42mm prop (max) with the stock set up. The stock composite prop is a 42mm with a 1.4 pitch. Will need to try a Octura X442 on it.

Stringfly <>+++

I do have and will try.

[Brushless55]

It didn't kick in during the run but after I pulled it in after the 3rd run and I tried for another.

I got my GPS worked out so I'm going to try one set of runs tonight with 4s and 6s. Apparently the GPS doesn't like more than 5.85V..

One more thing to note, I"m looking at the manual and for the ESC it says 80A continuous and 300A peak so it's got a pretty beefy yet small ESC.

sweet!

[oscarel]

Here's data with x442. I would watch it running with this prop on 6s, it heated up pretty quick when the run was over. Also the boat had a lot of chine walk or prop walk, the back was swinging back and forth and the boat was wobbling side to side at WOT. I was able to get a video on 4s but not 6s and I will post it tomorrow. Also the boat's owner came and picked it up today so this is the end of the testing for now. Hopefully this helps those looking to buy it. With a little adjusting I'd say this is a pretty sweet RTR for the price. I bought a Blackjack last year to get back into boating and I replaced the steerable drive before it ever hit the water and the Spartan I wouldn't change a thing. I don't have any experience with monos and I'm sure the wobbling could easily be corrected with the tabs, but I wasn't going to adjust them with a pair of pliers since I didn't own it! I do see however that Traxxas sells a bolt on adjuster which they should've included.

[oscarel]

And if anyone is interested I do have the eagle tree bdr files

[Checkmateguy01]

All this info is great!! My Spartan is just sitting waiting for the ponds/lake to thaw out, still got a way's to go. So, how did it run on 4s?? Any 4s top speed numbers? I have a set of DTX 7-cell NIMH's that i will run for sure, but i'm seriously considering getting a Hobby King Quatro 4 out-put lipo charger and a set of 2s lipo packs just for this boat. Curious if it will be worth the money over the 5000DTX 7 cells or not. Don't need 50+ mph for my lake, upper 30's to 40 mph will be just fine for me!

[oscarel]

4s is in the first two pics above, 33 I think was max with x442

[Checkmateguy01]

4s is in the first two pics above, 33 I think was max with x442

Ok, i just wasn't reading the charts right then. Only 33 on 4s huh? How come such a big jump to high 40's -50 mph with 6s? I would think good 7-cell NIMH's should get low-mid 30's, i guess i'll see when ever i get to run it for the first time.

[Brushless55]

so 47mph with the better prop on 6s?
great info man!

[Brushless55]

Ok, i just wasn't reading the charts right then. Only 33 on 4s huh? How come such a big jump to high 40's -50 mph with 6s? I would think good 7-cell NIMH's should get low-mid 30's, i guess i'll see when ever i get to run it for the first time.

going from 4s to 6s is a 50% jump in volts
so 33mph on 4s calculates to 49.5mph on 6s (with 50% jump)

[Checkmateguy01]

going from 4s to 6s is a 50% jump in volts
so 33mph on 4s calculates to 49.5mph on 6s (with 50% jump)

Ahhhh, OK, makes sense! So, then two 2s lipo's is 14.8 volts right?, and two 7 cell NIMH's is 16.8 volts, the NIMH's would be faster than 4s lipo, correct?

[Make-a-Wake]

Ahhhh, OK, makes sense! So, then two 2s lipo's is 14.8 volts right?, and two 7 cell NIMH's is 16.8 volts, the NIMH's would be faster than 4s lipo, correct?

Actually not, they weigh quite a bit more than lipos, and only put out about 40-45 amps for a high quality one. A 40c 5000 mah lipo puts out 200 amps constant, and will give more than the motor is asking for, hence more "power" more speed. Plus, a fully charged 2s lipo is 8.4 volts and has minimal drop compared to a nimh. Nimhs would come in very hot after a hard run.

[Brushless55]

Ahhhh, OK, makes sense! So, then two 2s lipo's is 14.8 volts right?, and two 7 cell NIMH's is 16.8 volts, the NIMH's would be faster than 4s lipo, correct?

depends on prop and the grade of cells of the Nimh packs
but most likely the lipo packs will be faster because they put out more amps for the motor to run faster

when I get mine, I'm going to cycle the Nimh packs a few times through my Revo and then try them in the Spartan and see what speeds I get vs my 4s packs