I have installed a 6 volt battery in my clone. It was super fast. I have posted a video of it that had the 28L photo Lithium battery installed. I actually just taped it to the top of it since I was testing it. I had the battery laying around since I had brought the wrong one for my camera and could not return it opened. If you want to see click the link . I have a couple more test runs so post a request and I will add the others links.
http://members.aol.com/buycompuparts/1strun.mpg
Well I hope from posting this that I could be some ideas from you to make this more of a fun fast car with this type of high volt battery.
I am going to try a dual battery mod to compare the results. If the 6 volt is faster then the first thing I am going to do is look to see if there is a 6 volt battery out there that is rechargble and then get a zipzap since it has a bigger chasis and could hold this battery. I would the probably replace the pcb in it with the one from this car. If any electronics experts knows if this is really equal to 6 volt of the rechargable batterys please post your reply. Thanks
Results
Overall- First of from what I saw from testing is that this clone (fit Racer) can run 6 volts (but not sure about the milliamps) without the pcb getting fried. The next thing I found is that its not really a good idea to use unless you want to go straight only but would have to really modify the sloppy front wheels. Its wasn't reallly fun either because I could not steer the car and it keeped fliping over all the time.
Steering- I had disabled the steering and fastened the streering bar to stay straight but the front wheels still had too much gap on the pins which cause the car to sway left and right at times. Also its does not really look nice with this battery taped to the top since it could not fit in the battery compartment.(If you have ideas please let me know then maybe I will look for a 6volt rechargable battery like this one.) When I had renabled the steering the wheels would turn left and right but would stick because I think the steering coils were too charged. Also at full speed when turning the car would just flip on its side. I guess its going to fast and the controls dont allow for gradually turning. I also dont thing that having the battery mounted on top helped it either.
Acceleration-The acceleration was super fast compared to the original battery but I am not sure how it compairs to the dual battery mod(I have ordered the batteries but am waiting to receive them). Here is the thing though...If I accelerated 80 percent of the time the car would pull to the right. I think its too much power on the rear left wheel. Thats why in the video it goes to the right. Its pulls so much to the right even with the front wheels locked its goes a few feet then hits the walls. In the video that was actually a good run. I could get the car to go straight only if I started tapping the forward control until I got some speed then held it down. But by the time I got the car going the car would hit the wall (I only had about 10 to 15 foot of space of floor space).
What was being used
Bit Racer clone called a fitracer
If you are wondering the gears I were using were from a kit that goes to the zip zaps (the 2 motors and 3 gears sets). I used the red motor (23,000rpm) and had the read gears and axel which I modified to fit. The gear ratio I believe is 8:25:1.
Again the battery installed a 28L photo Lithium battery.
Internal battery was removed.
Runtime-I have not idea but its still going strong after 15 minutes. I havent tried it since then.
If you have read this far please let me know if you had any ideas or let me know what you think.
I did just want to add that I have tested this with a 3.0 motor and the results were disapointing. It took the whole length of the floor (10 to 15ft) before it just barely reached full speed and I figure it would probably be close to the end of antenna range as well.
Oh if anyone has a mod to increase the range on this fitracer please let me know thanks.
6 Volt mod test with video-Any ideas?
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