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Hey All, just dropped a TPP 4050, 2310kv in my hydro to explore the possibility of setting up for P Sport. It’s a DF Vortex 34 Hydro. I’ve been running 8s on a Leopard 4074, 1050kv as a sport boat. I now have the provision to easily wire between 8s and 4s. The TPP is a 5D winding. I have never ran a TP and set the timing at 2 degrees. I’ve got a smaller prop on it, ABC 1715-17-45 since this will spin a few thousand RPM’s faster than the 8s setup. What do you think about the 2 degree setting? Also, does NAMBA restrict the battery size in P Limited and if so, what is the spec? Thanks!
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2 degrees is a good call Craig, sometimes you can get up to 5 on a D but I haven’t tried it.
Race limitations are out of my feild of concern. Lol -
D motors 0 to 4 degrees timing
NAMBA "P" Sport Hydro
Max hull length -34"
MAX mAh =10,000 on board. = two 4S-5,000 in parallel or two 2S-10,000 in series
Also read the rules on hull spec's for EL Sport Hydro's here: section #28
LarryPast NAMBA- P Mono -1 Mile Race Record holder
Past NAMBA- P Sport -1 Mile Race Record holder
Bump & Grind Racing Props -We Like Em Smooth & WetComment
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Thanks guys... Looks like it’s a legal hull, but my smallest 2s batts are 5200mah and I’m running a 2s/2p setup for weight distribution. So I need like 4800-5000... this boat is heavy, 11.6lbs, so energy capacity is a bit of a concern... What are most guys running?Comment
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There is no power advantage between 0* and 5* advance with Delta wind motors, just extra heat. I assume you are running 4S 5200 mAh power. If you are running six laps on a 1/6th mile course, 5200 mAh will not be enough, especially with that hot motor.
I ran a TP 4050/1950 motor in my Vortex and used 6600 mAh packs, this left me with just over 25% remaining in the packs after a full race heat.
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Jay, yes I have ran 5200mah packs as the smallest. But I didn’t set up a course close to spec, so I need to do that and see if I can hot lap 6 circuits and see what’s left... I’ve been running the boat on 8s and capacity hasn’t been an issue. I got some big 8000mah packs, and in 8s configuration with a M445 it’s getting just about 6 minutes with 25% left. Close to 8 minutes with a ABC 1715-17-45 on it.
I tried the boat with 2, 4s packs but the weight distribution went to hell and I lost a lot of good cornering in race water. I just went back to 4, 2S packs with them laid out horizontal out into the sponson wells on each side. The 4s packs were too thick to put them where I wanted due to limited height under the deck at that spot, just behind where the hatch opening begins. Attached a pic for reference, the motor is removed.
So I should just set timing at 0 and forget about that... I’ll do that.Comment
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And yeah, the kv is higher than I like... That 1050kv motor on 8s has been sweet!Comment
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Thanks a Larry, that’s a hell of a book there! As Jay noted and what I’ve been concerned about, that batt mah limit might be a death nail for me as far as racing is concerned... That’s a bummer...D motors 0 to 4 degrees timing
NAMBA "P" Sport Hydro
Max hull length -34"
MAX mAh =10,000 on board. = two 4S-5,000 in parallel or two 2S-10,000 in series
Also read the rules on hull spec's for EL Sport Hydro's here: section #28
LarryComment
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Craig
For your setup of four 2S packs, 2 in series on each side then those pairs in parallel.
If each pack is 5,000 mAh then your good, two 4S packs in parallel = 10,000 mAh on board.
If that is too heavy, four 3,600 mAh packs would give you 4S - 7,200 mAh total.
In my "P" sport I run two 4S -5,000mAh packs in parallel. (I need the weight)
LarryPast NAMBA- P Mono -1 Mile Race Record holder
Past NAMBA- P Sport -1 Mile Race Record holder
Bump & Grind Racing Props -We Like Em Smooth & WetComment
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Yes Larry, me to... The concern is (and I’ll have to test) is can the boat, at 11.6lbs, run the race on 10,000mah? That’s why I went with 8s in the sport boat config and get decent run time, but the smallest pack was 5200 each, for 10,400 total.
I need the weight so bad I’m even running hard shell cases to bring some more weight to the table. And, there’s not a lot of batts at 5000mah with a decent C rate. Oscar in Dallas told me that the limit was imposed for insurance requirements...Comment
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Craig I get my race packs here;
Graphene 2.0 -70C - 140C LiPo Batteries
LarryPast NAMBA- P Mono -1 Mile Race Record holder
Past NAMBA- P Sport -1 Mile Race Record holder
Bump & Grind Racing Props -We Like Em Smooth & WetComment
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What makers are you looking at? 5000 is the defacto large LiPo size.Paul Upton-Taylor, Greased Weasel Racing.Comment
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Hey Paul, I’ve been buying much larger packs because I’ve been just sport boating, 7200 and 8000. I’ve been running these Speedzone packs and they hold up real well. I tried the Turnigy 4s packs I bought from Larry, but as talked about earlier, it messed up my weight distribution.
Larry, I’ll check that link out! Thanks guys!Comment
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