Another 8ight-T 2.0 conversion

[Shark413]

Update:

I Finally got my Losi 8ight-T on the track today. The track has been completely redone since the last time I was there, very technical with lots of quads, offcamber, elevations, etc. Very difficult track for a truggy. At first the truggy was a handful to control, very inconsistant, then I remembered Losi recommends a break in period. After two packs the truggy felt much better and I was able to put in some hot laps. I have a Smart diff in the center but under power it still seemed to send more power to the front, my front tires were ballooning and I even popped a few wheelies when I really nailed it and that is a major no-no for a truggy. I blew both front stock Losi tires off the rims and then I switched to some new AKA's, these wheels/tires were dialed for this track (blue groove). I was happy with the handling, it turned much better than I expected and pivoted perfectly. Jumping was good and controlling altitude was a piece of cake tapping the brakes or when I stabbed the throttle. But not all was roses, one of the rear shock ends pulled off (I heard that the factory sometimes over tigthens the ends and messes up the internal threads), I lost a screw and lock nut holding the front inside upper toelink pivot ball, I blew off two of the factory glues tires and the inside of the rims rubbed on the spindle. But on the other hand I took a couple of big hits when I was getting used to the new track and darted a few of my double double attempts over the quads and nothing broke (except for the shock end). The Motor performed well and was faster than all the other truggies/buggies on the track. Temps on the motor were great (118 max, with ambient temps in the 80's).


Eagle Tree data (motor and battery temps)

[Shark413]

Update:

I recieved my Traxxas ESC mount and added it to the Losi. I used the existing holes in the Losi battery tray. Nice clean looking and holds the esc securely. The built in switch mount is also handy.

[Overkill]

That looks very clean with that TRX hold down thingy

I'm waiting for mine to be available in the next month or so, when they ship to hobby shops that freight international, can't wait, yours looks excellent

[Shark413]

As I reported earlier I am running a Smart Diff in the center and the truggy didn't feel right. It didn't seem that the SD was working correctly, too much power was still transferring to the front. So I opened it up and found a couple of problems. First, all (or most) of the grease was gone, apparently even when it seems to be full of grease the centrifugal force causes the grease to squeeze into all the open spaces around the outside of the diff, leaving the middle dry. Secondly I had accidentally rebuilt it using the 90 degree ramps which don't lock as aggressively. So I added the 120 degree ramps, removed two of the four .15mm springs, and regreased everything. Hopefully this will get it to lock up a little faster and more aggressively.


All the grease is around the outside, with nothing in the middle.


Dry diff


90 degree ramp on the left, 120 ramp on the right.

[Overkill]

Are you going to regrease or will you use some diff oil and fill her up? Maybe 3K or something like that, just to keep the gears lubed

[Shark413]

Originally Posted by Overkill

Are you going to regrease or will you use some diff oil and fill her up? Maybe 3K or something like that, just to keep the gears lubed

Overkill, I have been told by others not to use silicone diff oil in the SD because it is not a good lubricant. Some have tried stuff made for cars (Mobil syn oil) but I am sticking with the Losi grease, I just made sure I really packed it in there this time.

the neu castle 2200s do sure seem to run cooler then the 2650's.

Im glad I got the bigger tekin 1515 size for my buggy.

youre not the only one to experience temp problems with the 2650 shark.

most everyone around here can put in 25 min on a 2200 and come off with real cool temps just like you