Trinity D4 17.5
#241
Here is the track. It's large for an indoor.
https://www.youtube.com/watch?v=4g8I-mD40Yg
Last edited by elex300; 09-10-2014 at 08:07 PM.
#242
Mid Motor vehicles dont accelerate as fast as rear motor. This is why I use a larger spur on my MM. My RM buggy is geared 32-34/70 where my MM is geared 28-30/72. For buggies I set the can to pull 10 amps. I cant say a specific number for the dial because it can vary from motor to motor. However 60 should be close.
Here is the track. It's large for an indoor.
https://www.youtube.com/watch?v=4g8I-mD40Yg
Here is the track. It's large for an indoor.
https://www.youtube.com/watch?v=4g8I-mD40Yg
#243
Suspended
iTrader: (115)
Joined: Aug 2014
Posts: 1,401
From: Florida
I'm still testing with mine (D4 Maxzilla / HW Stock Spec V3.1 / B5M), but I think it's close. I started with 32/72, 30 degrees timing, then went 33/72, 30 degrees timing. Came of the track at 99 degrees F.
Changed to 32/69 with 40 degrees timing, came off at 114 degrees F
I loaned out my 31 pinion, so I ordered some new ones, so I think I'm going to try 31/69 and bump up the timing to 50
Changed to 32/69 with 40 degrees timing, came off at 114 degrees F
I loaned out my 31 pinion, so I ordered some new ones, so I think I'm going to try 31/69 and bump up the timing to 50
#245
[QUOTE=Jeepy2013;13553876]What are people running for timing on average for this motor for 17.5 binky, off-road?
My motor came out of the box set at 30, I'm currently running it at 40.[/QUOTE/]
I would say between 55-60 on the can for 2wd buggy.
My motor came out of the box set at 30, I'm currently running it at 40.[/QUOTE/]
I would say between 55-60 on the can for 2wd buggy.
#247
Tech Regular
iTrader: (5)
Joined: Jul 2014
Posts: 260
From: Utah
So my D4 has been great... Til tonight. I have run it for 2 club race nights and tonight for practice. Has always come off the track at 140-145* but after one of the practice sessions it pulled off at 190-195*. Nothing changes other than temp. Think the motor is still okay with it getting thst warn for a short time? Didn't smell weird or burnt so figured I would ask
#248
So my D4 has been great... Til tonight. I have run it for 2 club race nights and tonight for practice. Has always come off the track at 140-145* but after one of the practice sessions it pulled off at 190-195*. Nothing changes other than temp. Think the motor is still okay with it getting thst warn for a short time? Didn't smell weird or burnt so figured I would ask
I would look everything over to make sure you don't have a bearing going out or something that is causing drag in the drive line.
Good Luck!
#250
Tech Master
iTrader: (83)
Joined: Feb 2011
Posts: 1,269
From: Sutter, California
I'm running a D4 17.5 Maxzilla with an extreme stock esc in a mid motor stadium truck. Felt like I was driving a freight train. Started off geared 26/80 with 45 motor timing then dropped to 24/80. Didn't seem to make a difference. Didn't have any other spur gears but stopped off at the hobby shop and picked up a 76 and 78 so I have some flexability. Any ideas or suggestions.
#251
and how big is the track and what kind of grip does the track have?
Dayton
#252
#253
Ok, try 33/69 at 50* timing. If temps allow, gear up.
I have found the sweet spot with the Ion5 and a Pro Select 12.5 Ht rotor to usually be around 48*-50* giving the best efficiency and power.
Above 50* increases power by far but efficiency drops off quite a bit.
Shoot for 150* on the can after a complete run, if you can run a fan it will allow you to pull a little more gear.
Dayton
I have found the sweet spot with the Ion5 and a Pro Select 12.5 Ht rotor to usually be around 48*-50* giving the best efficiency and power.
Above 50* increases power by far but efficiency drops off quite a bit.
Shoot for 150* on the can after a complete run, if you can run a fan it will allow you to pull a little more gear.
Dayton
#254
Ok, try 33/69 at 50* timing. If temps allow, gear up.
I have found the sweet spot with the Ion5 and a Pro Select 12.5 Ht rotor to usually be around 48*-50* giving the best efficiency and power.
Above 50* increases power by far but efficiency drops off quite a bit.
Shoot for 150* on the can after a complete run, if you can run a fan it will allow you to pull a little more gear.
Dayton
I have found the sweet spot with the Ion5 and a Pro Select 12.5 Ht rotor to usually be around 48*-50* giving the best efficiency and power.
Above 50* increases power by far but efficiency drops off quite a bit.
Shoot for 150* on the can after a complete run, if you can run a fan it will allow you to pull a little more gear.
Dayton
Can't wait till it arrives!



