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Better motor/esc OR higher c rating lipo?

Better motor/esc OR higher c rating lipo?

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Old 05-14-2011, 09:57 PM
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Questions?? Better motor/esc OR higher c rating lipo?

I'm fairly new to the whole lipo and brushless motors.

Currently I'm running a losi 22 with-
dynamite fuze 3300sc motor/esc combo
Dynamite speedpack 4000mah 20c lipos

Basically my quandary is which should I upgrade first? I'm looking at the viper vst motor/vtx10 esc combo pack in 10.5 turn with the batteries I have or would running like a 40-50c lipo produce better results with the fuze setup I alredy have. Thoughts on this would be appreciated.

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Old 05-15-2011, 02:03 AM
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Originally Posted by mdwalsh View Post
I'm fairly new to the whole lipo and brushless motors.

Currently I'm running a losi 22 with-
dynamite fuze 3300sc motor/esc combo
Dynamite speedpack 4000mah 20c lipos

Basically my quandary is which should I upgrade first? I'm looking at the viper vst motor/vtx10 esc combo pack in 10.5 turn with the batteries I have or would running like a 40-50c lipo produce better results with the fuze setup I alredy have. Thoughts on this would be appreciated.

Matt
I would upgrade all 3

The Viper set up should be much better than what you are running .

I dont have the 22 but run a mid-motor buggy with a 13.5t Team powers plutonium motor and xerun 60a esc with 40c batteries.
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Old 05-15-2011, 07:17 AM
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they will all get upgraded eventually. but which would make the biggest difference right now?

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Old 05-15-2011, 07:33 AM
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I suspect you will see a bigger gain going to the 10.5 motor than the higher C lipo. I can't really tell a difference between my 24C and 50C lipos but sure can tell a difference between 17.5 and 13.5 motors.
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Old 05-15-2011, 07:39 AM
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+1 on the esc / motor change.
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Old 05-15-2011, 08:10 AM
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Originally Posted by BigBrute_347 View Post
I suspect you will see a bigger gain going to the 10.5 motor than the higher C lipo. I can't really tell a difference between my 24C and 50C lipos but sure can tell a difference between 17.5 and 13.5 motors.
+1. I am still running 25C batteries with my 8.5 T Tekin motor with RS Pro and I can tell no difference when I throw in a 50C pack. I think the whole C rating thing is so full of fudging of numbers by the manufacturers and urban legend that I can't make heads or tails of the reality of it.
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Old 05-15-2011, 09:44 AM
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Sounds like a good consensus going. any thoughts on that viper set up?

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Old 05-15-2011, 04:07 PM
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I ran a Tekin and the viper is the only esc I would consider a replacement. Hard to beat the Tekin.
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Old 05-15-2011, 04:14 PM
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There are too many "misspec'd" Lipo batteries out there. The only way you would tell if the Lipo battery you bought was in fact an "upgrade" over your current one, you would need a good quality charger with high amp discharge capability in the 30-40 amp range with graphing capability(iCharger 306B,3010B, FMA Powerlab8 for examples). Many of the new high "C" batteries out there are no better than the much lower C rated counterparts.

WIth that said, I would upgrade the motor/esc combo. Seriously think Novak Ballistic at the very least for the motor. Once you buy one, you can always retune it into a completely different turn motor. THey are 100% rebuildable and you can buy individual stators, rotors, boards etc for em. So if you buy yourself a 13.5T Ballistic 540 motor, you can always swap out the stator and rebuild it into an 8.5T motor as an example. Currently I feel the Ballistic line is the best line of BL motors currently available, especially with the new epoxy dipped stators now available.
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Old 05-15-2011, 04:54 PM
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Agree on the motor/esc upgrade first. Higher C lipos are more of a stock thing, especially non boosted-blinky where the power is limited and you need all you can get. With modified one generally has plenty of punch, if you are working the throttle smoothly the extra punch is not noticed much. And E8 where it’s frequently needed for the max amps of those beasts.

Another much quicker and simpler way to compare lipos is by measuring effective internal resistance. Just like with nicads and nimh, this will correlate fairly well with punch. IR has an essentially inverse relationship to C, lower numbers are better.

Some of the better chargers can provide IR measurements, and there are small cell checking devices that include the capability. It is important to measure at the same temperature and charge state to get good comparisons. Unfortunately different chargers frequently provide different numbers, best to stick with one device. I’m not as familiar with the repeatability of the cell checking type deals.

Last edited by Dave H; 05-15-2011 at 05:19 PM. Reason: attempted to clarify inverse relationship
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Old 05-15-2011, 08:09 PM
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In anything but stock class the "C" rating doesnt really matter. In mod class you already have plenty of power so you wouldn't need the higher "C" packs.

So in that route I would agree with a previous post of upgrading the motor first to a good quality 10.5 motor then the ESC at a later date and then finally a good lipo. In that order.

If you eventually decide to throw a stock motor in it, you will need the highest "C" rated pack you can afford, but only then. If you dont go that route a good 25-35 C pack will work just fine! If you go stock, a 50-65 C Pack will be golden, and they are not that much more expensive! You just have to shop around!
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Old 06-21-2011, 01:56 PM
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Ordered my viper 8.5 motor/vtx10 esc combo! Should be fun. I podiumed with that fuze set up at the last race! Can't wait to drive with the viper! Any recommendations on gearing the 8.5 in the losi 22? Any recommended settings on the viper esc? Timing, boost and such?

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