As suggested in a response to my 4 cell mod in my zipzap I have tried a 5 cell mod in another zipzap. (same body of pt crusier though) I have the same pcb swap from a fitracer as well and even same 23,000 rpm motor. The only difference is the frequency and that I left the stock blue gears in. I need to try the red gears when I get a chance. Anyways this mod would be the ultimate mod excecpt for the run time.
Runtime
Its runs for about a 1 and 30 seconds. But the last 30 seconds the batteries are really being drained quickly.
Handling
I noticed everything that was said about this mod about the car flipping over less and handling better (in the video I was still adjusting to the speed). I also think that since its not heavy like my 4 cell mod
http://www.tinyrc.com/forums/showthr...&threadid=7120
its definally accelerates faster and has a faster top speed than then my 4 cell and even with the blue gear on this car. The 4 cell has red gears.
Modifications
I did not even have to make any solder connections with this mod. All I did was purchase those batteries and bent then to fit.
I originally had tried to use the whole 6 cell pack (7.2 volts) but once I had charged them the car did not respond to the controller. I believe that the chip on the pcb has some sort of safety to shut off if a certain amount of volts goes throught it. I made sure these was no shorts and then connected the pcb wires to a single 1/4aaa battery and the car immeadly responded. I guess I have to find some sort of mini relay if I want to go over the 6 volts. If you have any ideas please let me know.
Also if you got a faster car post a video so we can see it.
Here is the link to the laymans mod by sessiz10
http://www.tinyrc.com/forums/showth...=&threadid=6045
Now here is the video of the run with this 5 cell mod
http://members.aol.com/buycompuparts/5cell-1.wmv
Was encoded and you may need divx to view it . download it at divx.com.
Threaded Mode
