View Single Post
Old
  (#20)
Batfish
RC-Monster Aluminum
 
Batfish's Avatar
 
Offline
Posts: 617
Join Date: Apr 2005
Location: MA
06.21.2005, 08:41 PM

Small amount of progress tonight.

I got into the tranny and adjusted the two-speed shift. It now shifts at about 1/4 throttle and was easily as fast as my stock E-Maxx on 12 cells. This was with the 8-cell IB3600 pack.
Just for kicks, I finally plugged in one of my Kokam 3s 3200 packs...wow... I only ran it for about one solid minute since I didn't re-program the MGM for the 3s lipos, but it was a WOW difference. The peak voltage on the 8-cell is only about 1 volt less than the 3s, but I got my first glimpse of the way lipos don't drop voltage under load. If I didn't already say it; Wow! :)
Time to get a secure battery mounting system so I can put those packs to good use!
If I had to guess the difference, I'd have to say that the 3s lipo was about a 30% faster "feel". If I was running high 20s with the 8-cell, I'd easily say mid-30s with the 3s lipo. I really gotta get a GPS.

Also, the temps after 6 solid minutes of about 3/4 throttle on the 8-cell pack were: ESC - 125F, motor - 135F. The 8-cell pack started dumping right around 6 minutes of relatively hard running. Also, just about all my home testing is done in my back yard in the grass. At the track, I expect that it would have barely made a 5-minute race with hard driving. I think I have to cycle my packs a couple times since they haven't gotten much use over the past couple weeks.


Joe

Electronics run on smoke... if you let the smoke out, they stop working.
   
Reply With Quote