Kyosho Ultima RB6 & RB6.6 Car Thread
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#5237
I think you guys are onto something with the rb5 rear arms. The steering, stability, jumping is all there, so the next area is to look for even more rear traction to push it outside the envelope, if that is what the straight arms do. Even as a noob I can only imagine the potential for the rb6. I think maybe even going back to a plastic chassis or t-plate for more flex could be the way, especially on low traction tracks? And she could do with losing some of that weight!
#5238
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You guys make me laugh.
#5239
Watch this. It's Tebo explaining how he does it.
http://www.rccaraction.com/blog/2011...ed-tebo-video/
#5240
Tech Adept
iTrader: (4)
Weight Distribution
Has anybody weighed their rb6 for weight distribution?
My rear motor weights - 1561 grams with 32.5% front and 65.5% rear
My mid motor weights - 1506 grams with 35.5% front and 62.5% rear
Went to Joliet (252 entries) this past week end and raced the the rear motor (8.5) in mod and the mid motor in stock (17.5) blinky. Fast lap for the mod was 20.9 secs and 22.4 for stock. It was a high bite wet clay surface that started out with slicks and we finished on ghost pins. Still haven't decided between the mid and rear motor setup, like both.
Turbo
My rear motor weights - 1561 grams with 32.5% front and 65.5% rear
My mid motor weights - 1506 grams with 35.5% front and 62.5% rear
Went to Joliet (252 entries) this past week end and raced the the rear motor (8.5) in mod and the mid motor in stock (17.5) blinky. Fast lap for the mod was 20.9 secs and 22.4 for stock. It was a high bite wet clay surface that started out with slicks and we finished on ghost pins. Still haven't decided between the mid and rear motor setup, like both.
Turbo
#5241
Tech Elite
iTrader: (47)
Soooooo can we add this info please?
I tested yesterday and had been running 25/0 Entry was great but exit was a little pushy
I went to 25/2 caster and it had a lot more exit speed, and overall twitchiness.
buuuuuuuut I just realize I didn't adjust the bump!
I think Cpt had a formula and he can correct me if I'm wrong
25/0 run 0 on the outside steering
25/2 run 1mm
25/4 run 2mm
If you don't run a shim, you will get bumpsteer and the car will react on edge, at least for me.
I tested yesterday and had been running 25/0 Entry was great but exit was a little pushy
I went to 25/2 caster and it had a lot more exit speed, and overall twitchiness.
buuuuuuuut I just realize I didn't adjust the bump!
I think Cpt had a formula and he can correct me if I'm wrong
25/0 run 0 on the outside steering
25/2 run 1mm
25/4 run 2mm
If you don't run a shim, you will get bumpsteer and the car will react on edge, at least for me.
#5243
Soooooo can we add this info please?
I tested yesterday and had been running 25/0 Entry was great but exit was a little pushy
I went to 25/2 caster and it had a lot more exit speed, and overall twitchiness.
buuuuuuuut I just realize I didn't adjust the bump!
I think Cpt had a formula and he can correct me if I'm wrong
25/0 run 0 on the outside steering
25/2 run 1mm
25/4 run 2mm
If you don't run a shim, you will get bumpsteer and the car will react on edge, at least for me.
I tested yesterday and had been running 25/0 Entry was great but exit was a little pushy
I went to 25/2 caster and it had a lot more exit speed, and overall twitchiness.
buuuuuuuut I just realize I didn't adjust the bump!
I think Cpt had a formula and he can correct me if I'm wrong
25/0 run 0 on the outside steering
25/2 run 1mm
25/4 run 2mm
If you don't run a shim, you will get bumpsteer and the car will react on edge, at least for me.
25 caster = 0mm bumpsteer
30 caster = 3mm bumpsteer (what I am running now)
You can do the math to figure out how much you will need at 27, 29, 32, etc. If you changed caster but didn't adjust bumpsteer washers to keep the car at 0 bumpsteer, you actually made two changes at once. You will feel the affects of bumpsteer just as much as caster... so your test was inconclusive until you make those change corrections.
There might be a difference in how much B.S. washers you run depending on the angle of your camber link as well, but I haven't tested that. The key is to just make sure you measure your bumpsteer before and after your caster changes to make sure you keep it the same so you aren't making two changes at once.
#5245
Yes lock it down.... You'll never have enough power to break anything in the trans.
#5249
Brandon, Is your set up on Pitite RC the most current?
#5250
Nope... and probably never will be. My latest is on my website, and the link always takes you to my latest (I just update the same link). I just made my changes/updates yesterday. Car was brutally good this last weekend.
Brandon Collin's RB6 setup for high traction indoor clay