So I have now tried them both and I think they both deserve a final review! You can follow the initial threads here
LRP NEXXT 4X
http://traxxas.com/forums/showthread...s-Nexxt-4x-esc
Castle Sidewinder SV2
http://traxxas.com/forums/showthread...-SV2-ESC-Mount!!!
LRP NEXXT 4X Final Review
When I first opened the box and saw how small it was and how it does not have a heatsink, I was skeptical on how it would perform in my MERV. But it did not disappoint! Big performance in such a small package.
PICS:
http://s191.photobucket.com/albums/z...orter%20Wires/
PROS:
- Small and no mods to chassis to mount
- Waterproof
- Easy calibration
- 3.5 bullet connectors like velineon 380 motor
- 5 programming modes
- MODE 0 (internal temp check system 2) tells you how far or close you were to thermal shutdown temp.
- Autocell System knows if lipo or nimh battery is being used
- Smooth sensorless driving
- Change mode settings without transmitter
- Quiet functionality more quiet than Sidewinder SV2
CONS:
- No programmable lipo cutoff (But it was slowing down around 3.6-3.7V/cell)
- Need velcro to safely mount it or you need to use the double sided sticky tape provided
- No heatsink??? Not sure if a pro or a con lol!
RUNTIMES:
20-25 minutes on 1x 20C 2S ***** Lipo
WHEELS and GEARING
2.2 size wheels and 28T pinion 50T Spur
TEMPS:
HIGHEST ESC - 43.6 Celsius
Velineon 380 MOTOR - 39.8 Celsius
PRICE: $110 CAD taxes + shipping included
Castle Sidewinder SV2 Final Review
When I first got the Sidewinder SV2 at a great price on ebay, it was basically as a backup solution to the LRP NEXXT 4X. I was also looking for a non-mod-to-chassis way of mounting it. I thought well let's see what other are doing. Came across www.e-revo.net and this guy mounted his ESC sideways. I thought hmmmm Sidewinder let's mount it sideways lol!
PICS:
http://s191.photobucket.com/albums/z...20ESC%20MOUNT/
PROS:
- Easy calibration
- 9 programming modes
- Smoother sensorless driving than LRP, no cogging what-so-ever!
- Waterproof? See CONS
CONS:
- Have to build a mounting bracket to securely mount it sideways without any chassis mods
- 4mm bullet connectors, need 4mm male -> 3.5mm female adapters if using Velineon 380 motor
- If for some reason you are switching back and forth between LIPO and NIMH you have to go to the 7th mode to program it, no auto detection
- Programming needs to be done with Transmitter
- Noisier than LRP
- Not waterproof? New HPI Firestorm is using the Castle Sidewinder SV2 and they are claiming it is waterproof...
http://www.ultimaterc.com/forums/sho...d.php?t=121655
http://www.hpiracing.com/press/105878.html
RUNTIMES:
23-28 minutes on 1x 20C 2S ***** Lipo
WHEELS and GEARING
2.2 size wheels and 28T pinion 50T Spur
TEMPS:
HIGHEST ESC - 31.8 Celsius
Velineon 380 MOTOR - 43 Celsius
PRICE:
$63 CAD taxes + shipping included
FINAL THOUGHTS
Very very tough decision but in the end since I do not run my MERV in wet conditions (cleanup is annoying!) and I also noticed the Sidewinder SV2 is much smoother than the LRP, however the LRP is smooth... I will be using the Castle Sidewinder SV2 esc throughout the spring, summer, fall in my MERV. Also the LRP was very hard to find and more expensive than the Castle Sidewinder SV2. Maybe the hard fun work put into making the mounting bracket also made me want to use the SV2 lol! I don't know lol! The sidewinder sv2 runs cooler but makes the motor a little warmer. I get more runtime with the Sidewinder SV2 mainly due to the programmable lipo cutoff which I set to default 3.0V/cell cutoff. I kind of find that Castle is more geared for the North American RC users and the LRP more towards the European RC users... The LRP is way cheaper in Europe and the Castle stuff cheaper in North America... But in the end, these are 2 great alternative ESCs for the 1/16 E-Revo!









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