Kyosho ST-RR conversion - RC-Monster Forums

Shark413 · 12.19.2008, 05:58 PM

Nice, looking conversion. Yeah I have been running my ST-RR conversion for some time now and love it. One of the best handling truggies I have every driven and I attribute some of this handling to the chassis flex. Most buggies/truggies are designed to flex, that is why the braces stop short and attach to the middle of the chassis (and not to each other). Without this flex it would feel like a brick. I use the King headz braces only because I was worried the stock Kyosho brace might pop off (held on with a large ballend) and so far they are working great. So don't worry about the flex, it is a good thing.

George16 · 08:35 PM

Quote:

Originally Posted by Shark413

Nice, looking conversion. Yeah I have been running my ST-RR conversion for some time now and love it. One of the best handling truggies I have every driven and I attribute some of this handling to the chassis flex. Most buggies/truggies are designed to flex, that is why the braces stop short and attach to the middle of the chassis (and not to each other). Without this flex it would feel like a brick. I use the King headz braces only because I was worried the stock Kyosho brace might pop off (held on with a large ballend) and so far they are working great. So don't worry about the flex, it is a good thing.

Great that you chimed in Shark. I just ordered the rear Kingheadz brace and rear mount from Amain since Kingheadz is so slow in replying to my question asking them if they ship to a military address. I was certainly worried about the flex (this is my first "real" truggy) but felt reassured now.

What's your current diff oil and suspension setup? Thanks again.

rschoi_75, we built that track inside the navy base here in Yokosuka Japan last year. The background is the mouth of Tokyo Bay and it gets windy and cold especially now.

Shark413 · 12.19.2008, 11:54 PM

George16, I am running 7K, 10K, 3K in my diffs and that setup works well for the short technical track I run at. One thing you have to keep an eye on are your diffs, the ST-RR uses spiral gears and they are very sensitive to shimming. The torque, heavy truck, bigger tire contact patch, plus the fact the neu motor puts out so much torque it can shred diffs bigtime. I destroyed my center diff one week and then the front blew the next week. The center blew out because I switched to an aluminum diff cup that was a little out of spec, the front blew out because the inner pinion bearing let loose throwing the mesh off. I have switched back to the stock Kyosho diff cup for the center with harden HB gears and rebuilt and reshimmed the front diff (and replaced all the bearings). Don't get me wrong, the ST-RR is a durable truck, I have been running it hard for 5+ months and these are the first diffs I have blown. Nothing else major has broken, but I did wear out the front bearing in my Neu a few months ago (replaced by Neu).