Recent content by smooth90

The four solid state relays form an H-Bridge to drive the brake motor, I tried using several types of brushed motor controllers but for whatever reason nothing but this diy H-Bridge worked which was a major pain. The 16 channel relay board isn't really being used (well one relay is) but in the...

Sorry for the late reply, I got it off ebay, it is a really nice little rack and pinion setup. The steering motor is a Nema 34 stepper motor. The part connecting them is a 3/4" to 3/4" shaft coupler with a rubber part in the center so it can flex and not be perfectly aligned. Another thing to...

The large metal sheet is all one piece then the frame is welded on top of it. The metal sheet is tack welded to the frame. I will likely run a few short weld beads around the frame soon. Gravity is basically compressing the bottom and the top together so the tacks just keep them together they...

If someone wanted to hack into this I guess it might be possible in principle but its something I absolutely think will %99.99999 of the time never happen. It's not connected to the internet which is where basically all hacking is done from so if you wanted to hack this you'd have to be very...

Yea definitely I was thinking of adding a seat mount in the center so a one could be bolted on and removed as needed. I'm really looking toward the tow behind approach for riding this kart. I want to create a really low profile roll cage for this that's only slightly higher than the engine so...

Drive System Test Video Here is a youtube video of me testing out the drive system. At 1min in the engine starts (I had to pull the starter a bunch of times to get the fuel pumping, the engine hadn't been started in months) At 2:10min I start throttling the engine and the wheels start...

Question/Comments If anyone has questions or comments I'd be glad to hear them. This project was pretty challenging so I'm pretty enthusiastic about it. I think it'll be ready for a road test within 10 days. The initial electronics that I'm going to put in it will be dead simple. I'm going to...

Additional Build Pictures [/url]

I’ve been working on this project over the past few months and its finally coming together. It all started with an idea to build a large scale “RC car”. I settled on a rather simple design. There is no suspension, I initially planned on independent front suspension and to have the rear move up...

I'm gonna have steel and possibly aluminum parts laser cut for the whole frame so I should be able to put together a nice guard for it. The stock plastic guard would probably fly apart. If I have problems with the belt slipping then a jackshaft reducer should work depending on how much torque it...

I think I'll go ahead and give it a try then. I guess the worse case is that the torque converter partially fails again (described below). If it doesn't work I'll make a jackshaft reducer to reduce the rpm range. Anyway thanks for the input I had a torque converter sort of fail once before, it...

Ah, thanks for your input. I forgot to mention that I'm replacing the connecting rod in the engine with a billet one as well. I don't plan on really hitting and sustaining 8400rpm. If I do get up there it'll only be for a short sprint at max speed. I'm already pretty invested in this engine so...

Hi everyone, I have a question about my predator engine and torque converter: I'm waiting on UPS for the parts to completely upgrade my Hemi Predator 212cc for a big RC car that I'm building. I purchased a Dynocams 308 billet cam, 32lbs spring set, new stainless steel intake valves, billet...

I am selling my 800cc go kart for $600. PICKUP NEAR MANASSAS VIRGINIA PM FOR MORE INFORMATION OR INQUIRES The go kart engine runs just fine however the go kart is not operational at the moment. http://www.youtube.com/watch?v=DhmNe4uurBg Will post more photos soon I just need to find my...

Its an Onon p220g twin cylinder rated at 20hp@3600rpm 800cc. This is a really time consuming project....... I'm working on something right now that taps into the ignition system to measure the rpm of the engine. Hopefully I can test it out tomorrow because measuring the rpm is not all it...