I pulled a couple wheelies myself on Saturday! I would like to try 7-5-3 in the diffs. On another note the Kyosho 1.3X8 pistons feel good on the bench with 45/30 oils. Will have to wait until next Saturday to try them out!

1x TKR5145 on each of the bevel (larger) gears inside the diff. Oldanski might be talking about the TKR1222 shims on the outside of the diff .

I think we emailed you back about the missing shim. We'll get that sent out tomorrow. Thanks.

Yikes, that's dirty. Looks like a rebuild might be in your future

where did you guys run at?

Finally was able to drive the buggy on our super rough, blown out, outdoor track yesterday and was pleasantly surprised with how close the buggy was with the stock setup. I am going to change a few things to get it dialed in, but it is a great start!

I think an 8x1.3 piston will be good for bumpier conditions. The stock 10x1.1 is good for smoother conditions with harder landings.

The stock 10x1.1mm is ~9.5mm total surface area for the pistons. I know the length of the holes also matters, but just for discussion, the 8x1.3mm is ~10.6mm of surface area. Smaller holes will have more pack especially when combined with the shape of our piston. So a flat piston with 1.3mm holes should be really good over bumpier conditions. Should also help traction in loose conditions.

Our stock pistons also have tapered holes. This is why I am running them upside down right now as it speeds up the compression (better for bumps) and slows the rebound (good for landing and getting back on the power without the rear end bouncing as much).

A 10x1.2 (11.3mm total area) with heavier oil would be good too. I am going to drill out some more pistons and give it a shot.

I think we will be changing our base setup to be 7-5-3 (f-c-r).

This is interesting. I've been running heavier F diffs vs C for 2 yrs now, in all my 1/8. I tell people what I run, and they look at me like I'm nuts......

We normally run out in front of my house. We also race amongst our selves out at Hawthorne Park. I race my mini 8ight a lot over at Larry's Performance R/C. What about you? You're about an hour or less from me, I want to try out Dirtburner's. How it is it over there? PM me.

I was talking about the shims on the outside of the diff as well. I couldn't get the diff in the gear case halves with one shim on each side. I ended up just putting one on the gear side.

Gotcha. I think there is a note about that in the instructions actually. Keep the extra shim handy. As the gearbox flexes and wears in, you may need the other one at some time.

I had the same problem. I just used one shim on the ring gear side.

I made sure to put both shims in for that reason exactly. Once everything seats(and it will), The gear mesh will be loose. I actually put both shims on the gear side to reduce some of the play. It made the transmissions extremely free, especially after they seated. There is not a ton of play between the gears either. It is just right.

Thanks for the info! We don't have smooth tracks up here in Canada!

Hmm, You know, im kicking myself now. I didnt even think about that. Im going to change the diff oils to 7-5-3 as that should help with the launching on the jumps and give me the on power steering I am looking for. See, Its good to share all this info. My car has too much umf and I can not be too aggressive leading up to the jumps. Too much thinking while driving makes my mellon hurt.