Round 2 – FIGHT!

We ordered up some new arms and body mounts. Also needed a new spur gear. Losi sells a kit with a 60T and a 58T. Maybe we can get an extra .5 MPH with the 58 tooth spur, so I threw that on.

Also, we determined that the motor shaft on the Fuze 7000kv was wobbling, causing an inconsistent mesh with the spur. This was part of the reason it stripped. So, I went online and found a new (to me) powerplant. This time we want more speed, so I picked up a used Losi XCeleron 9400kv.

Got it bolted up, and threw on the biggest pinion that I could fit. This is a 19T pinion, up from the 16T we started with.

Next. I threw on a new front A Arm. One of the things I wanted to fix was how high the nose sat. I put a limiter inside the front shocks to prevent them from extending as far as they were. I held up a spring to show how much shorter they are now, I estimate they have 1/4″ less down travel. This should help keep the nose lower.

The arms sit more level now, which is a giant improvement

Kevin scoped this trick wheelie bar online. It is actually intended for the Team Associated RC18T. But, with a slightly longer screw, I was able to use the holes for the ECX bumper to mount it. This means no bumper on the back, but the motor is still protected so we’re ok. I mounted it upside down so that the truck will stay more planted. That’s what I was hoping for anyway.

Last but not least are the rear body mounts. When you order the set, it comes with both front and back. These are slightly different than the stock ones, in that these are adjustable. On the stock mounts it was a set length. These will be cool because if we keep flipping onto the roof, we can adjust the mounts to have usable holes.

My personal goal is 50 MPH. I wonder if we can hit it? We set out to a school parking lot. Not the same as the first time, but definitely big enough for some speed runs.

After a few ginger passes, I went for it. The wheely bar definitely helped keep the nose down. We no longer had a problem with the truck flipping. Now our problem was the tires. Once I would reach half throttle, the tires were ballooning so much that all that was touching the ground was a small sliver of tire. The truck would ride on the wheely bar and the pizza cutter of a tire, and lose control. We topped out at 41 MPH…disappointing to say the least. We did better with the other motor. We tried several passes through 2 battery packs, and we just couldn’t control it once the tires ballooned.

So, we’re going to shelve this project for now, with a top speed of 42 MPH (seen in the video below). That isn’t bad for what we started with, but we know there is more there. We’ll resurrect this project later this summer with another approach.

Here is the whole account on film. If you enjoy watching, share it with your friends.

[youtube]http://www.youtube.com/watch?v=ny8oVng95A4[/youtube]