This page documents all the motors that I know of that provide good to excellent performance in the Trex 450x.
I have also included a recommended pinion to use.
I will add to this table as new motors are tested.
All motor testing is performed on a static controlled bench with the T-Rex strapped down and linked through a Medusa Power Analyser to the PC.Click on the following link for some pictures and description of the functionality of the Medusa Power Analyser Plus.
I am also now using the Hyperion Emeter to gather power analysis data.
If you have a motor not on this list but would like to calculate (roughly) the required pinion it can be done as follows :
target rpm * teeth on main gear / motor kv / voltage / motor efficiency
In the case of the T-Rex this equates to an equation for the Align 400S with 3S lipo as follows :
2400 * 150 / 2800 / 11.1 / 80% = 14T
Another useful resource for calculating power systems was sent to me by one of my forum members (thanks Luke). It is a spreadsheet that can be used to work out how powerful your setup will be based upon various factors (including motor and lipo being used). The power Analysis spreadsheet can be downloaded here --> Power Analysis
In the table below the Align is shown with a 13T, this is the difference between maths and real life ;-)
| Motor | kv rating | Pinion | Weight | Review Scheduled | Completion Date | |
|---|---|---|---|---|---|---|
 |
Chilli Pepper | 3600 4200 |
11T 9T |
60g | ||
 |
Mega Power 400L | 3600 | 11T | 72g | ||
 |
Hacker B20 15L | 3700 | 11T | 51g | ||
 |
Align 400L | 2500 | 13T | 71g | ||
|
Align 400S | 2800 | 13T | 71g | January 2005 | 18th January 2005 |
 |
Eflight Park 400 | 4200 | 11T | 68g | ||
 |
Mega 16/15/3 | 3000 | 13T or 14T | 76g | January 2005 | 20th February 2005 |
 |
Mega 16/15/4 | 2200 | 15T | 76g | ||
 |
HA2815-3000 | 3000 | 13T | 86g | ||
 |
Lehner 1020/17 | 3529 | 11T | 60g | ||
 |
Warp4 BL4 3 turn | 2580 | 15T | 74.5g | ||
 |
Feigao 2045-3600 | 3600 | 8T | 62g | ||
 |
Neu Motor 1105/3Y | 3500 | 11T | 65g | February 2005 | Part 1 Complete |
 |
AON V2815-3500 | 3500 | 11T | 98g | March 2005 | 27th February 2005 |
 |
AON V2815-3000 | 3000 | 13T | 98g | March 2005 | Part 1 Complete |
 |
SHP SS23 | 2300 | 15T | 100g | TBC | |
 |
400 DH | 4200 | 8T or 9T | 42g | April 2005 | Part 1 Complete |
 |
MR-028-040-3400 | 3400 | 11T | 100g | March 2005 | 24th April 2005 |
 |
450 DH | 4000 | 9T | 55g | May 2005 | 13th June 2005 |
 |
MR-028-032-2800 | 2800 | 15T | 70g | August 2005 | August 2005 |
 |
450TH | 2900 | 15T | 57g | August 2005 | August 2005 |
 |
YH22XL-3900 | 3900 | 9T | 89g | September 2005 | September 2005 |
 |
450F | 3450 | 11T | 55g | October 2005 |