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gonnacrash · 10-03-2014, 08:05 PM

Well my new to me one flight 450x, while sitting waiting for a new tail hub I decided to do motor locktite mod. Took it all apart and the motor shaft is all scored up, time for a new motor.

I wonder if jb weld would do, instead of locktite?

I guess it gets to sit a few more weeks, as I get some spare cash and wait on shipping

jadewarrior · 10-04-2014, 11:40 PM

E-flite 450H motor. Two bucks more than a stock motor and a WHOLE lot better.

gonnacrash · 10-05-2014, 12:04 AM

Ya I am going to get the elite 450 motor. Just need to wait to replenish the toy fund

RoboHeli · 10-11-2014, 06:23 PM

Quote:

Originally Posted by jadewarrior

E-flite 450H motor. Two bucks more than a stock motor and a WHOLE lot better.

Any need to also update the ESC when you do that? Or is the 450H okay with the stock ESC?

jhan1 · 10-11-2014, 07:37 PM

Quote:

Originally Posted by MrRoboHeli

Any need to also update the ESC when you do that? Or is the 450H okay with the stock ESC?

Runs fine with the stock esc.

RoboHeli · 10-12-2014, 01:47 PM

Thanks!

One last question. What's a good pinion to use with the 450H in order to keep the same sorts of headspeeds that you get with the stock 440H and it's pinion?

RoboHeli · 10-12-2014, 03:54 PM

Quote:

Originally Posted by MrRoboHeli

Thanks!

One last question. What's a good pinion to use with the 450H in order to keep the same sorts of headspeeds that you get with the stock 440H and it's pinion?

Okay, I found this on-line headspeed caculator:

http://dhrc.rchomepage.com/calc.htm

and then after doing some Googling to get the specs for everything, I came up with the following:

In stock form, the 450X has a 140 tooth main gear, a 10T pinion, and a 4200Kv motor. That gives a maximum theoretically possible headspeed of 3330 RPM.

With the 450H being a 3600Kv motor, it looks like I want a 12T pinion because that will give me a theoretical maximum headspeed of 3425 RPM

Nelsonisms · 10-13-2014, 09:41 AM

That's right. It also depends on whether you run 325mm or 350mm main blades and whether you plan to run a headspeed governor.

But yeah, with 325mm mains most people run 12T ungoverned and 13T governed with that setup...EFlite H450 or Scorpion 2221-8 @ 3600kv on 3S.

If you run 350mm blades you can get away with 11T ungoverned and 12T governed since the blades provide more lift and also to keep the flight times up with the increased drag.

That calc you referenced is cool. It has a lot going on with that page. For another option, the one most of us have been using for years is the one by Fredrik Melin (aka Mr. Mel). It's good because it's fairly simple and has options for different governors. It also takes into account battery drain throughout the flight when running ungoverned. He has a mobile version for iPhone and Android which is kind of convenient if you want a quick reference without a web connection.

jadewarrior · 10-13-2014, 11:08 AM

Quote:

Originally Posted by jhan1

Runs fine with the stock esc.

For some people.

jhan1 · 10-13-2014, 01:09 PM

Quote:

Originally Posted by jadewarrior

For some people.

Hahaha...Yes thats quite true. I changed to a CC edge lite 50 just to try out the governor. Works great

jadewarrior · 10-13-2014, 03:48 PM

Quote:

Originally Posted by jhan1

Hahaha...Yes thats quite true. I changed to a CC edge lite 50 just to try out the governor. Works great

It does work very well with the E-flite 450H. I had my stock ESC pop on me when I was still running the stock motor. And, that was after about 125 flights on the heli and running a second stock motor which didn't have many flights on it at all.

RoboHeli · 10-13-2014, 07:31 PM

Very interesting.

Wouldn't you also want to stretch the tail if you ran 350mm blades?

Nelsonisms · 10-13-2014, 07:41 PM

Quote:

Originally Posted by MrRoboHeli

Very interesting.

Wouldn't you also want to stretch the tail if you ran 350mm blades?

Right, you'd definitely need to stretch the tail to run longer blades. Most of us are using the Lynx stretch kit for that.

RoboHeli · 10-13-2014, 07:44 PM

Quote:

Originally Posted by Nelsonisms

Right, you'd definitely need to stretch the tail to run longer blades.

okay, cool. thanks!

I'm going to start out ungoverned on the stock ESC and then start saving up for the CC Edge Lite 50 (probably for next flying season...).

munger · 11-02-2014, 08:25 PM

I had 120 flights on the stock motor and stock ESC. The motor died and I recently switched to a 450H motor as recommended here.

Flew it for the first time today.
-stock ESC
-12T pinion.

Observations
- Heli has much more pop. Responds much quicker to collective changes
- forward flight speed is increased but not dramatically
- motor temp seems slightly cooler than the stock motor
- ESC temps feel about the same.
- flight times same

RoboHeli · 11-03-2014, 08:10 PM

Nice! Did you use the stock motor mount as well?

munger · 11-04-2014, 05:47 AM

Yes stock motor mount as well.

Mr.D 4511 · 11-04-2014, 07:15 PM

Same here on the stock m.m but I had to shim the motor up a tad cause it was barely grinding on the top of the main gear.I used the small washer that goes behind the main grip screw for that.Worked perfect!I`m also using a Rino harden steel 12t pinion in mine,might be why I had to shim it...not sure

10-03-2014, 08:05 PM	#1 (permalink)
gonnacrash Registered Users Join Date: Sep 2014	dang stock motor, aka need new motor Well my new to me one flight 450x, while sitting waiting for a new tail hub I decided to do motor locktite mod. Took it all apart and the motor shaft is all scored up, time for a new motor. I wonder if jb weld would do, instead of locktite? I guess it gets to sit a few more weeks, as I get some spare cash and wait on shipping __________________ Blade 450x and dx7 Mcpx stretch kbdd sr blades Esky cp3 not flight ready Forza 450 still in box Last edited by gonnacrash; 10-03-2014 at 08:12 PM.. Reason: autocorrect

10-05-2014, 12:04 AM	#3 (permalink)
gonnacrash Registered Users Thread Starter Join Date: Sep 2014	Ya I am going to get the elite 450 motor. Just need to wait to replenish the toy fund __________________ Blade 450x and dx7 Mcpx stretch kbdd sr blades Esky cp3 not flight ready Forza 450 still in box

10-13-2014, 09:41 AM	#8 (permalink)
Nelsonisms HF Support Join Date: Feb 2013	That's right. It also depends on whether you run 325mm or 350mm main blades and whether you plan to run a headspeed governor. But yeah, with 325mm mains most people run 12T ungoverned and 13T governed with that setup...EFlite H450 or Scorpion 2221-8 @ 3600kv on 3S. If you run 350mm blades you can get away with 11T ungoverned and 12T governed since the blades provide more lift and also to keep the flight times up with the increased drag. That calc you referenced is cool. It has a lot going on with that page. For another option, the one most of us have been using for years is the one by Fredrik Melin (aka Mr. Mel). It's good because it's fairly simple and has options for different governors. It also takes into account battery drain throughout the flight when running ungoverned. He has a mobile version for iPhone and Android which is kind of convenient if you want a quick reference without a web connection. __________________ Gaui X5F 6S (VBar), Lynx 450X-L 6S (Ikon), Lynx 300X-L 4S (Ikon), Blade 180CFX 3S (Ikon) Lumenier QAV400 4S (Vector), Lumenier QAV250 3S (Naze32/CleanFlight), CYE Stingray 500 4S (TG Multi) AMA Member, HCAM Member

11-04-2014, 07:15 PM	#18 (permalink)
Mr.D 4511 Registered Users Join Date: Aug 2012	Same here on the stock m.m but I had to shim the motor up a tad cause it was barely grinding on the top of the main gear.I used the small washer that goes behind the main grip screw for that.Worked perfect!I`m also using a Rino harden steel 12t pinion in mine,might be why I had to shim it...not sure __________________ Paper Money + Heli`s = Loose Change !!

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10-04-2014, 11:40 PM	#2 (permalink)
jadewarrior Registered Users Join Date: Feb 2014	E-flite 450H motor. Two bucks more than a stock motor and a WHOLE lot better.

10-12-2014, 01:47 PM	#6 (permalink)
RoboHeli Registered Users Join Date: Jan 2012	Thanks! One last question. What's a good pinion to use with the 450H in order to keep the same sorts of headspeeds that you get with the stock 440H and it's pinion?

10-13-2014, 07:31 PM	#12 (permalink)
RoboHeli Registered Users Join Date: Jan 2012	Very interesting. Wouldn't you also want to stretch the tail if you ran 350mm blades?

11-02-2014, 08:25 PM	#15 (permalink)
munger Registered Users Join Date: Apr 2014	I had 120 flights on the stock motor and stock ESC. The motor died and I recently switched to a 450H motor as recommended here. Flew it for the first time today. -stock ESC -12T pinion. Observations - Heli has much more pop. Responds much quicker to collective changes - forward flight speed is increased but not dramatically - motor temp seems slightly cooler than the stock motor - ESC temps feel about the same. - flight times same

11-03-2014, 08:10 PM	#16 (permalink)
RoboHeli Registered Users Join Date: Jan 2012	Nice! Did you use the stock motor mount as well?

11-04-2014, 05:47 AM	#17 (permalink)
munger Registered Users Join Date: Apr 2014	Yes stock motor mount as well.

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