losi 5ive-T conversion pics

[Bondonutz]

Originally Posted by FG101C

It's diffing out to the front a lot. From my experience with brushless motors, this is just my experience, brushless motors like a load. Diffing out may be causing the motor to run with less of a load causing slight over revving. I fixed this same sort of issue in my 1/8th Truggy by going to a thicker center diff oil.

In my baja the 2028 was running hot, so I went up two teeth on the pinion and it coooled down some.

Again this is just from my experience, I'm by no means saying that's the problem with your truck or saying I'm an expert at this...end disclaimer.

Diffing out def cause excessive heat, had the same probs with my EP buggys till the CD was running heavier fluids.
As if you hadn't heard it enough, 200* is excessive. With that much power to weight ratio you should be running 150-160* at the most. Gearing down may kill the fun a bit but def make a nicer/more managable drive and bring the heat way down.

My 2cents

[auto2]

bondo i do know 200 is hot. thanks:-) only happened once. wont happen again. kinda suprised me. i did gear down. from 18 to17. is 45ish MPH too high for a track with 200 foot straight? maybe. that why i ordered a 16 from mike. but a few other people thought i need to gear up to give the motor some load. i do have 30,000 in the center. guess im going to 50,000?

[Cain]

I am wondering with the 1/5, do the same rules apply as far as where you are topping out at down the longest straight when determining initial gearing.

Hopefully you can clear up the heat issue.

[brian015]

No traction, diff unloading - to me sounds like lots of wheel spinning - and heat generated in the motor from revving at high rpms w/o load. I would definitely go up in weight in the cd - many of us have used 100k in smaller trucks with success. What about punch control or torque limiting on the esc - have you tried those to see if they would make the truck more controllable (less wheel spin)?

[auto2]

is current limiter the same a torque control? if yes then i did. stock was at 200 amps. im at 150
I LIKE WHEEL SPIN lol.:-( i can drive with a lighter trigger finger and in a race i would but that doesnt show off how crazy this thing can be.

btw the truck is totally controlable :-) its the best sct ive ever driven no matter what the size. no matter how much wheel spin. its a beast.

[Cain]

Less wheel spin will also up your runtime. I remember fighting the wheel spin beast on a simple 1/10 2wd truck on a winter indoor track. almost made my runtimes go up 30% just by correcting it.

[auto2]

when proline comes out with a real 1/5th scale track tire that may help wheel spin .plus when the track gets redone and watered in a few weeks and has traction that may help too.
im thinking a 16 pinion will still be plenty for for the straight.

[auto2]

update- i ran at same track but only used whatever throttle the track could take. tried to have very little wheel spin. maybe 1/2 on the straight.
i got 17 minutes run time instead of 12.
motor was max temp of 150F on telemtry and was 125 in the pits by temp gun a minute later.
batterys were much cooler .100f
center dif was 50 degrees cooler.
60 degrees out today instead of 70
still a 150 amp current limit and a 3.5 voltage cut off



dont freek out with the rpm i may have 2 pole instead of 4 pole in telemrtry.? just devide by 2

[FG101C]

I would try 100k in the center, the truck seems to rotate very well naturally. You always have some throttle to make it do what you want if 100k is a little thick off throttle.

I want one of those trucks bad, don't hate but mine will have the 28.5cc reed motor in it though, I've seen a couple videos and that motor is nutty. The thing keeping me from getting one is no track for 1/5th around me to run it at.

[Bondonutz]

Originally Posted by FG101C

The thing keeping me from getting one is no track for 1/5th around me to run it at.

+1

[Cain]

was in the same boat too when I bought my first 1/5 . I can honestly say yeah, I would love to be able to race this vehicle. It definitely is a tough call on spending the money on essentially a basher if you have no track.

[killajb]

The thing keeping me from getting one is no track for 1/5th around me to run it at.

I started out with that fear, but then thought.. "Wait a minute, if I'm romping a 1/5 scale beast around I can buffalo it pretty much anywhere I damn well please!"

Granted, I've electrified all of mine.. but the 1/8 scale tracks will let me run there on practice days so long as I play nice with everyone else

You'd be surprised how friendly people get when they see one of these big things shaking about.

[auto2]

lol i ran over a slash .it wasnt pretty and wasnt my fault. funny though like a speed bump in the road

[auto2]

nvmd

[auto2]

found a place to stretch the beasts legs. CORN FIELDS nothing like cruizin at 60+ mph down a corn field ( without corn lol)
just dont roll over at the far end cause its a 5 minute walk to go get the thing.

i'm down to a 16t pinion with the castle blower fans and its running cool now.
no issues;no problems; just fun :-) i need tires.