Talk 1520 - your experiences - Page 6 - RC-Monster Forums

nuz69 · 05.07.2010, 04:48 AM

The "bad boy" mounted in the chassis

:

Gearing 15/46, 6S 4000mAh (a little heavy), runtimes under track conditions are 19-20min, although the gearing is a little too much to race !
Temps : when ambient is 55-60, motor reaches 100-105 °F after the run

I do not know the weight of my truggy, but I am pretty sure that it reaches 11 lbs (a little heavy compared to a nitro MBX5T).

nuz69 · 05.07.2010, 02:02 PM

Another video of bashing ;)

http://www.youtube.com/watch?v=dF3EU-2BarI

ANGRY-ALIEN · 05.07.2010, 11:00 PM

Thanks for the update and info man...

Jahay · 05.26.2010, 02:20 PM

that is a beautiful home made cd motor mount!!! You have a very nice truggy there!!!
You can see no expense has been spared!

Do you think you would like to make me one of those cd mounts :)

ANGRY-ALIEN · 05.26.2010, 03:12 PM

Thanks man... some expense was spared with homemade parts

... i'm not sure if I'll ever want to know how much money went into this build over the years...
hmmm... regarding the mount... it was a one off thing (materials here are scarce and I have to import almost everything i need)... So I'm not sure how feasible it would
be to make a small run on this design... besides, I wouldn't want to disrespect the site owner by peddling my stuff here...

Thanks again for the compliments dude.

Alien

nuz69 · 07:23 PM

Update for me :

14/46 ===> 17/46

The same deal for the motor, sames temps as 14/46 and insaaaaaaane top speed

Moreover wheelies are easier as in 14/46 (didn't touch the 70% punch control !).
But a bad thing happened... I did one time a full throttle from 0 speed, and my truggy responded by a DOUBLE standing backflip !! "OMG, WTF this 1520 is doing to my truggy :D :D !!!" ====> my out-shaft of center diff melted in the spur, blocked the diff... mugen parts are precise engineered, and the shaft enter tiely in the spur :( metal vs metal = heat, i didn't have this problem with the 14/46, but in 17/46 diff works maybe a lot more... I tried to enlarge a little the spur hole, but mugen parts are very heavy too ^^ Will see tomorrow if it works better.
anyway, this motor can handle bigger pinions and keep exactly the same temps, impressive

ANGRY-ALIEN · 05.29.2010, 12:12 AM

Powerrr!!!

... are you going to make some vids with that 17 tooth setup? can't wait to see that.

nuz69 · 05.29.2010, 03:37 AM

Quote:

Originally Posted by ANGRY-ALIEN

Powerrr!!!

... are you going to make some vids with that 17 tooth setup? can't wait to see that.

Coming today :D

Jahay · 05.29.2010, 04:37 AM

nuz i have this motor in my extended savage... considerably heavier than your truggy... i have it currently geared to 53mph (calculator says) and i get temps only as a high as 120degrees on the motor and less on the esc... temps are very low! i was considering gearing up but left it as it is and ill just run it on 9s when i have the funds

nuz69 · 05.29.2010, 07:26 AM

Good news ;) 120F is pretty cold for your savage and gearing

Today, my motor was at 110F on front and 125F on rear plate after one battery, it was sunny and ambient was 75F. I am geared for 48 mph but without a lot of ballooning :D
The video is uploading at the moment

nuz69 · 05.29.2010, 08:44 AM

http://www.youtube.com/watch?v=AtKp47Xz3jk

Here is the flying truggy :D

ANGRY-ALIEN · 05.29.2010, 01:43 PM

Those are some nice numbers guys

... Keep the updates coming.

nuz69 · 05.29.2010, 01:53 PM

I ran 2 batteries this afternoon, I tried to push the motor to its limit :D

158F on the rear plate and 130F on the front after the 2 batteries, ambient was 80F, and it was on heavy grass, with 17/46 ~50mph ! There is still safety gap with the 170F limit... but on race or normal bash the temp keeps at 130-140 max on the rear plate...
45-50mph on grass is very impressive :D I love see that thing wheeling on demand, even at mid speed :D
But I am disapointed with RCM pignons... it seems to use itself pretty quickly, maybe due to the extra weight of the truggy ? I have a NOVAK one in my buggy and it's still in good shape after 250 batteries...

nuz69 · 05.30.2010, 05:11 PM

Today's video, nothing new, just JUMP :D

http://www.youtube.com/watch?v=ZBUrEhpPuYQ

Jahay · 05.31.2010, 05:14 AM

some great vids there nuz!!! looks impressive! I am having teh same problems with pinions. I think i am going to swith to a plastic spur as it will stop wear on it.
I am not really worried about temps at the moment as some people say you should only get really worried if it hits 190? i am more worried about the ESC blowing! What temps are your esc?