Did anyone Data log their Sport 20 hydro running on 4s?

[Raydee]

I am using Ice controllers in all my hulls except my Whiplash Sport 21 hull and I am just curious if anyone has data logged thier sport 21 hull to see how many amps they are pulling. My buddy put a Ice 100 controller in his Whiplash running a Neu 1515 1Y on 4s1p and I was shocked to see that he was pulling over 200 amps in the boat. At full throttle the boat kept cutting out, it looks like the current limiter is kicking in. I swear we tested this hull before and it was ruuning in the mid 90 amp range with some 135-145 amp spikes. My larger Sport 45 hull using a Neu 1527 doesn't pull over 200amps.

[Fluid]

My very heavy P Sport Hydro with a 1521/1.5D averages 185 amps running in the low 60s,with spikes in the high 200s. A fellow club member with the same setup in a lightweight hull pulls 160 average - average is a normal line through the amp curve. My Q Sport with 1527/1Y pulls around 160 average running 70+. I cannot believe that a competitive 1515/1Y would average only 90 amps, that would be no faster than a Limited-powered boat.



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[Raydee]

Yeah well I could be wrong on the old logs. I guess I am still shocked to see a 4s boat pulling that many amps. The graph shows peaks in the 220 amp range and average at about 150-160. The runs were very short because the ESC was cutting out and we didn't want to smoke it. Looks like he will have to switch to the Ice 200 to be safe.

[Fluid]

Yes, he will eventually smoke the ICE100 - then he'll post that it was that shi**y Castle controller's fault.

I just do not understand why lots of folks think that amperage is somehow tied to voltage. You can pull just as many amps with a 2S setup as with a 12S setup, it all depends on the load applied and what the packs can supply. I see this a lot when inexperienced posters recommend 300 amp controllers - or more - for someone else's 10S boat with the misguided thinking that the high-voltage boat will need more amps. Totally wrong, in fact one of the advantages of high voltage is the ability to produce a lot of power (watts) without pulling high amps. To supply 2000 watts a 2s setup needs to pull over 270 amps, while a 10S setup needs less than 60 amps to reach that power level.

There is nothing wrong with having headroom in an ESC, but even oval-racing 10S boats seldom exceed 175 amps average draw, most are less. My 10S cats run in the mid/high-60s drawing less than 150 amp average over a one-mile heat.


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[Raydee]

Well I guess we figured that since re ran 120 Hydra ESC's in our Whiplash hulls for a year or so that there was no way that we were pulling that many amps. Its a miracle that the 120's even survived after seeing how many amps these Sport 21 hulls are pulling. I am stilling running a older Hydra 240 esc in mine but I am thinking about switching to the Ice 200 for next season just for the data logging. I doubt that the Ice 200 will fit so I may go with the 200 Lite and put a water cooled plate on it.

[oscarel]

I have some data I'll post later tonight. I may have 1515 1y and aquacraft 2030 data in an fe30.

Sent from my SAMSUNG-SGH-I997 using Tapatalk 2

[Raydee]

I have some data I'll post later tonight. I may have 1515 1y and aquacraft 2030 data in an fe30.

Sent from my SAMSUNG-SGH-I997 using Tapatalk 2

Which Ice controller are you using?

[oscarel]

Which Ice controller are you using?

It will be from eagletree, I use a Turnigy T180.

[RayR]

Ray,

I can verify what Jay just said. Virtually all of the boats in our club in the non-spec classes, average between 150 and 180 amps average draw.

[oscarel]

Here you go, 1st is 1515 1y with ABC H5 4s2p Haiyan packs. 2nd is Aquacraft 2030 with ABC H5 and 4s1p Haiyan pack. Note, motor burned up the next time I took it out, so won't do H5 with 2030 again!

1515 1y ABC H5.jpgAquacraft 2030 ABC H5.jpg

[Raydee]

Ok thanks guys, at least we know the ESC is not faulty and we are just running some high amp setups

[oscarel]

Sorry, the Aquacraft was small and I inserted a larger view.

[RaceMechaniX]

I have run a 1515 1Y and a Lehner 1950 for P sport and both show currents between 180 and 240 depending on prop. Yes you can prop down and pull less, but a competitive system will pull 175A or so depending on the hull and setup. I run a PT Stealth with 4S2P for P sport. It's light for a p-sport but also runs a 23 second 2 lap time.

I also run either an Ice 200 or a Schulze depending on motor.

Tyler

[jonjon00]

Whiplash 20 abc prop 9_23_2.jpgWhiplash 20 octura prop 9_23_1.jpg