Upgrading to 8s Power: Is It Worth It? โ๏ธ
We test the @fmsmodelRC 8s 1500kv motor and 120A ESC in the E-flite Viper 90mm. Is the upgrade worth it? Find out!

Two Brothers Radio Control
13.8K views โข Mar 4, 2023

About this video
We took the @fmsmodelRC 8s 1500kv motor and 120 amp ESC combo and tossed them into the E-flite Viper 90mm RC plane. It's debatable as to whether this is truly an upgrade overall, as some aspects of the jet do suffer while others improve. You get more low-end thrust at the cost of higher end speed. This could also be a case of wind interference, but the model's tendency to stall easier is definitely a consequence of adding more weight to the wings. It can be a super upgrade for those of you who want the most power under any circumstance.
๐ Like what you see?
โ๏ธ Pick up your own Viper 90mm: https://bit.ly/3JGRS30
๐ฌ๏ธ FMS 8s 1500kv motor: https://bit.ly/FMS1500kv
โก FMS 120 amp ESC: https://bit.ly/FMS120ampESC
๐ SMC Batteries
We're flying on SMC Batteries from www.smc-racing.com and you should too. The LiHV packs are outstanding and you won't believe how well they perform until you try them for yourself.
๐ฅ 5280 RC
Be sure to pick up a BlueFire or TrueFire ๐ฅ afterburner for this jet. Larry's afterburners look amazing - brighter than what you can get elsewhere, and cheaper too:
https://fiftytwoeightyrc.com/products/eflite-viper-70mm-flicker-led-afterburner
๐โโ๏ธConnect With Us On Social
๐ป Two Brothers Discord: https://discord.gg/Tt5ByVbhSc
โ Tiktok: https://www.tiktok.com/@jonsynrc
๐ท Instagram: https://www.instagram.com/TwoBrosRC
๐ฅ: @rcpilotwill
๐ฆ Products We Recommend
Receivers:
Spektrum AR10360T Receiver: https://bit.ly/3SuAlPv
Spektrum AR8360T Receiver: https://bit.ly/3QBdgtc
Spektrum AR637T Receiver: https://bit.ly/3dCjiuO
Transmitters:
IX20SE: https://bit.ly/3BI3eBD
IX20: https://bit.ly/3BQvB0u
NX10: https://bit.ly/3Qm6BSR
NX8: https://bit.ly/3bA4dcA
NX6: https://bit.ly/3QlIF27
Servos:
AGFRC B13DLM: https://tinyurl.com/B13DLM
AGFRC B11DLS: https://tinyurl.com/B11DLS
Hitec HS-85MGs: https://bit.ly/3dD1r7c
Batteries:
4s 30c 2200 Smart packs: https://bit.ly/3SsoUrB
4s 50c 2200 Smart packs: https://bit.ly/3dcdBU3
6s 50c 5000 Smart packs: https://bit.ly/3A0jVY2
6s 50c 4000 Smart packs: https://bit.ly/3JANxOL
#rc #aviation #rcplane
rc plane, aeroplane, rc planes, airplanes, airplane, aircraft, model airplane, flying model, tutorial, learn to fly, crash, rc plane crash, plane crash, tail heavy productions, brian phillips, rc saylors, the rc geek, flite test, flitetest, petrincic bros rc, eflite, horizon hobby products, horizon hobby, e-flite, viper, eflite viper, viper 90mm, 90mm edf, edf jet, sport jet, viperjet, fms motor, fms 1500kv, 1500kv
0:00 Introduction
1:25 Takeoff w/ 8s 3600 HV
3:30 High Alpha Performance
4:20 Landing & Battery Swap
5:40 Speed Testing w/ 8s 4400 HV
8:20 Touch & Goes
9:45 Landing & Battery Swap
10:47 Performance Flying w/ 8s 4400 HV
13:58 Landing & After-flight Thoughts
15:47 Tradeoffs on 8s Systems
๐ Like what you see?
โ๏ธ Pick up your own Viper 90mm: https://bit.ly/3JGRS30
๐ฌ๏ธ FMS 8s 1500kv motor: https://bit.ly/FMS1500kv
โก FMS 120 amp ESC: https://bit.ly/FMS120ampESC
๐ SMC Batteries
We're flying on SMC Batteries from www.smc-racing.com and you should too. The LiHV packs are outstanding and you won't believe how well they perform until you try them for yourself.
๐ฅ 5280 RC
Be sure to pick up a BlueFire or TrueFire ๐ฅ afterburner for this jet. Larry's afterburners look amazing - brighter than what you can get elsewhere, and cheaper too:
https://fiftytwoeightyrc.com/products/eflite-viper-70mm-flicker-led-afterburner
๐โโ๏ธConnect With Us On Social
๐ป Two Brothers Discord: https://discord.gg/Tt5ByVbhSc
โ Tiktok: https://www.tiktok.com/@jonsynrc
๐ท Instagram: https://www.instagram.com/TwoBrosRC
๐ฅ: @rcpilotwill
๐ฆ Products We Recommend
Receivers:
Spektrum AR10360T Receiver: https://bit.ly/3SuAlPv
Spektrum AR8360T Receiver: https://bit.ly/3QBdgtc
Spektrum AR637T Receiver: https://bit.ly/3dCjiuO
Transmitters:
IX20SE: https://bit.ly/3BI3eBD
IX20: https://bit.ly/3BQvB0u
NX10: https://bit.ly/3Qm6BSR
NX8: https://bit.ly/3bA4dcA
NX6: https://bit.ly/3QlIF27
Servos:
AGFRC B13DLM: https://tinyurl.com/B13DLM
AGFRC B11DLS: https://tinyurl.com/B11DLS
Hitec HS-85MGs: https://bit.ly/3dD1r7c
Batteries:
4s 30c 2200 Smart packs: https://bit.ly/3SsoUrB
4s 50c 2200 Smart packs: https://bit.ly/3dcdBU3
6s 50c 5000 Smart packs: https://bit.ly/3A0jVY2
6s 50c 4000 Smart packs: https://bit.ly/3JANxOL
#rc #aviation #rcplane
rc plane, aeroplane, rc planes, airplanes, airplane, aircraft, model airplane, flying model, tutorial, learn to fly, crash, rc plane crash, plane crash, tail heavy productions, brian phillips, rc saylors, the rc geek, flite test, flitetest, petrincic bros rc, eflite, horizon hobby products, horizon hobby, e-flite, viper, eflite viper, viper 90mm, 90mm edf, edf jet, sport jet, viperjet, fms motor, fms 1500kv, 1500kv
0:00 Introduction
1:25 Takeoff w/ 8s 3600 HV
3:30 High Alpha Performance
4:20 Landing & Battery Swap
5:40 Speed Testing w/ 8s 4400 HV
8:20 Touch & Goes
9:45 Landing & Battery Swap
10:47 Performance Flying w/ 8s 4400 HV
13:58 Landing & After-flight Thoughts
15:47 Tradeoffs on 8s Systems
Tags and Topics
Browse our collection to discover more content in these categories.
Video Information
Views
13.8K
Likes
318
Duration
17:41
Published
Mar 4, 2023
User Reviews
4.6
(2) Related Trending Topics
LIVE TRENDSRelated trending topics. Click any trend to explore more videos.