High speed G-maxx for ISC event, 100mph or bust

[Rivermaxx]

Some of you guys have seen my other thread on me wanting to compete in a ISC event with my G2 gorrilamaxx. After lots of research and help from various guys in this and the UE forum the project is on its way to become reality. My idea is to lengthen it for stability and keep it as low,narrow, lite, aerodynamic as possible, I am going to be using a mixture of stock plastic parts and some other exotic material parts and not normal parts to achieve this. Here are some pics and various stages of the build.

This is my Silverback build that I used the chassis from. I drove this truck quite few times and all I have to say is that chassis is awesome too bad they don't make it anymore.



This G4 is replacing the G2 chassis for a little different setup.More on that in the Silverback build in the near future. I like it a little better than the G2 because I am thinking it might be a little more stronger then the G-2 x brace setup. Not to mention parts are still available. So the G2 is getting sacraficed to the speed demon god.


One of the biggest issues with high speed is the foam donut filled tires will not handle high speed. There are a couple of options : HPI phaltlines on a tremor wheel or foam tires on a buggy wheels. The phaltlines are good for about 70mph if they are taped but after that they will most likely fail. The fix is to glue carbon fiber 20# test fishing line around the outside of the tire like this.

I really dont want to do this so I am going to try a different option.

The buggy foam tires on buggy wheels would work good for the speed but the problem is they are too small in diameter. My final gear ratio is to low and I will never get close to my goal. So the only thing I could do was get some custom made tires made. I found a company BSR racing tires who makes tires for on road cars willing to stretch some foams on wheels of my choice. The tires can only be maximum .300 thick though otherwise they will not last. So basically I have to find some big wheels. I originally was going to use the new 4" pro-line vtr wheels but that will only give me ~5" total tire diameter which is still a little short and my gear ratio will suffer. Eventually a guy on UE led me to some 23mm hex wheels made by CEN for their big 1/8 scale truck that are real big, ~5" to be exact. These will be ~5.5" with them trued & ready to go. Check it pics below:

Did I say they are BIG!!!!

I had to cut them down to 2 inches wide on a buddies lathe for better airflow and less weight and rotational mass. I could of gone thinner but traction might suffer.

These wheels are 23mm hex which is perfect because I have been reading the traxxas 17 mm hexes are sloppy and we all know 14mm wont last. My dace 23mm adaptors will work perfect for this build. I allready sent them to bsr and waiting to get them back. I am going to take a break now I hate typing. Next: I will have pics of some of the new special parts I have acquired because I took a little different route with this build. Feel free to comment and offer any ideas you might have as I could use any help I can get.