What do you mean already???
I replace the gears in my tranny every 5-10 runs!!! It just cant handle the power of the motor, and because of the length of my truck, i can actually pull all the power down without too many wheelies.

Thats why i am looking into a CD conversion to lose all the extre unnecessary gears in the tranny...

The tranny means speedbox ? And your tranny's pinions arent made of steel ? yes, the center diff is the solution to avoid unnecessary wheelies and bring a fraction of the power to the front wheels ! What punch control setup do you use ?
I use 70% and my truggy still can wheeling on demand, although its center diff ^^ I use 40K center diff oil.

The Tranny is my transmission. Of course my pinions are all hardened but the gears in side the tranny are not as great.

I dont wheelie all the time as my wheel base is 17" so around 23+" over all length. And as my motor is mounted at the front, the extra weight forward helps keep the nose down. But it still wheelies on grippy surfaces.

I do not have punch control set. It is at 0. Not necessary as i have so much weight forward. Plus you are comparing your 10lbs truggy to my 14-15lbs truck (depending on lipos used) .

here are the vids of my truck performing.

http://www.youtube.com/watch?v=yxET4OFe7mM

http://www.youtube.com/watch?v=mS9ziX12FaM

As you can see... the weight forward helps keep the nose down and i can go all out on acceleration. Since the badlands, it has been performing so much better.

Ok, I am currently at work, you tube is locked here :D I will see it later. But as your punch control is set to 0, the strain on tranny is very high when you accelerate full throttle. Maybe setting it from 0 to 40-50% will increase your tranny gears lifetime ^^

NO!




haha didnt meant to be so blunt.
I love the immidiate torque... Also once you see the vids you will see what i mean by it being able to put the power down without the front lifting. Only when i use stock tires or 40 series rims and tires will it wheelie all the time, but with maxx size tires its quite controllable. I dont care about longevity of my gears... i just want pure fun.

Hopefully the CD will fix my tranny issues. And even if the spur on the CD fails, it will be easier to replace that compared to ripping my tranny out and completely rebuilding it.

OK OK ;)
How many trannys gears did you bought ? You order them by 10 ?

I just order them as they break. I have 2 trannys. One in the truck, and one rebuilt at all times. When one fails, i drop the rebuilt tranny into the truck and rebuild the broken one.

Its the only way to reduce down time...

Just saw the vids ;) This is bashing ^^ I like the speed runs in the grass ^^

You can see why my transmission keeps on failing. Just cant handle all the torque i can make use of. My diffs look perfect still, and my dog bones and all shafts are holding up very well without much sign of premature wear. My axles are showing a little wear but they are fine for a while still.

I cant wait to see what its like on 9s once i got the CD in!

9S with the 1520 ^^ Have you already a good esc for that ? Without any limitations on 9S this thing will be total overkill :D :lol:

no i am waiting for the ice hv esc for trucks to come out... I hope it comes out soon! But thats my plan! The motor could handle up to 10s so 9s for speed runs should be fun :)

And your temps ? Today for me after one 6S 4000mAh of bashing 122°F, but on the rear plate. The front of the motor was at 104°F, my truggy is geared for ~45mph Ambient was 75, but the weather wasn't sunny. My truggy weights in fact 10.8lbs. I am waiting two for the HV car ESC, wanna try maybe 8S combined with low gearing to increase a litte the speed and decrease even more temp.

The reason u keep going through tranny gears is because the stock gear that wears out is not hardened steel. You need to get the hd gear. It is hardened and will last as long as the truck. I've put about 30 runs through mine and the gear looks brand new still.

I've been running the 1520 in my LST XXL for a few weeks now on 6s. Geared for 45mph, I ran 2 packs through it yesterday back to back and at the end of the second battery, my motor temp was 117 degrees. Temp was 24 degrees (Celsius) up here in Canada. The truck can handle the power very nice, however my diff output cups are starting to notch out where the dogbones hit. I'm thinking about picking up some of Mike's Hardened diff cups (I think I saw some?).

I love this motor. It makes me smile. I couldn't imagine this motor in a Savage though, what a waste :lol: