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by DePingus
Sun Dec 28, 2014 4:59 am
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Re: Kyosho Ultima II

http://i.imgur.com/L2ViWpwl.jpg New wheels and tires. Shocks adjusted. New ball ends on order. IIRC I had previously moved the shocks way down to increase the ride height because the back end would slap the ground with the lower profile street tires I had put on. That's also why I removed the wing ...
by Coelacanth
Fri Jan 23, 2015 4:24 am
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Re: Kyosho Big Brute, Ultima XL and Turbo Raider - Back Into

Welcome to the forum, nice cars! I like that Turbo Raider, actually. :) You're in good hands here but yes, there's a bit of a "re-learning curve" when it comes to modern electronics. It's not possible to make a single post to answer all your questions and teach you everything you need to k...
by DePingus
Fri Feb 13, 2015 2:56 pm
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Re: Kyosho Ultima II

It's done! 15T Brushed / 2S LiPo / ESC / Low Voltage Alarm http://i.imgur.com/D9pXMwfl.jpg This thing is crazy fast!!! Good thing I ordered that extra set of ball ends. 3 old ones cracked open when I rolled it. http://i.imgur.com/8yhwyPjl.jpg Questions... How do I lower the center of gravity? The sh...
by Diezel
Sun Jan 07, 2018 6:15 pm
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Re: Kyosho Ultima II

This was an awesome post to find! I just resurected an Ultima II that was given to me. I'm deciding if I'll convert it to brushless. Right now its got a trinity monster motor, a hobbywing 1060 esc, running futaba radio and servo. I'll snap some pics of it later to add here. As well as another link t...
by THEYTOOKMYTHUMB
Thu Jan 28, 2021 2:16 am
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Re: Kyosho Nitro Brute Restoration

Poor quality Nitro Brute video. Look how cool it looks with the big tires before Derek ruined it!

by HiTec
Mon Feb 01, 2021 6:05 pm
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3D printed Ultima ST "Type-R"

Hey all. I thought to dedicate an own topic for this car. I started to model some parts to my ST GP some time ago and the things just went out of control when i win a bid on BNIB Ultima ST Type-R EP. Before assembling it, i recreated all the Type-R specific parts to my PC, so i could easily print sp...
by coxbros1
Fri Feb 12, 2021 9:42 pm
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Re: What Size/Replacement to Replace Dogbone Pins OT-6/92645

I had an Optima right when itgot rere'd in 16' and i raced it outdoors and on carpet, alot of running and i never wore any out. I sold it few yrs ago☹ so i cant look at it. But I do have two 80's Turbo Optimas i bought used and restored, neither had worn pins
by coxbros1
Fri Feb 12, 2021 10:10 pm
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Re: Kyosho Nitro Brute Restoration

In your vid, it looks like the right side has alot of play in the axle thru the bearing. Check that...does the truck have full bearings? it needs to. On the left side (and probably right side too) alot of play is coming from the rod ends. Mine had that to...if u look 2 pics up, i installed rod ends ...
by coxbros1
Sat Feb 13, 2021 10:59 am
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Re: Got my Big Brute Running Again! But Gearbox Still Having Binding Issues.....

question from Nitro Brute thread: The trannys are quite a bit different on my Nitro Brute vs your Big Brute. Yours just has a pinion gear/counter gear/differential gear. Mine has the input shaft coming in the back with a ring/pinion setup changing the direction of the gearing....big difference. I do...
by Lowgear
Sun Feb 14, 2021 7:00 am
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Re: Got my Big Brute Running Again! But Gearbox Still Having Binding Issues.....

I have an old CAD file for a plate that goes between the motor and gearbox. I'm wondering if it was designed to fix this particular problem. I can't remember the details but 15+ years ago I bought some prototype parts off a guy who also included the file for me to have them manufactured. I never did...
by Coelacanth
Tue Feb 16, 2021 5:04 pm
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Re: What Size/Replacement to Replace Dogbone Pins OT-6/92645

You would think so...the Optima & Ultima originally had the same dogbones...62.5mm pin-to-pin. I don't have any re-re's so I can't confirm with those parts, but I imagine they'd be the same?
by coxbros1
Tue Feb 16, 2021 8:19 pm
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Re: What Size/Replacement to Replace Dogbone Pins OT-6/92645

Just measured a rere Ultima and Optima....getting 62.5mm pin to pin on both
by sgirouard
Wed Feb 17, 2021 8:47 pm
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Re: Got my Big Brute Running Again! But Gearbox Still Having Binding Issues.....

I used to have a usa-1 and had the same issue. It was really frustrating. What I ended up doing was to get metal tubes and used them as a support tubes for the motor mount screws inside the tranny case. I JB welded the tubes to one side. It took away the flex in the case I wish I could remember the ...
by coxbros1
Tue Feb 23, 2021 4:53 am
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Re: Ultima Tires?

Marwan RC has the tires for your original rims that are like the original tires....the guy at the hobby shop needs to know his business