I just bought an rc12 l4 and i am running a mamba max 7700kv brushless in it with intellect 4200 cells (4 cell) but on the main straight of my track that is fairly long my steering is way to twitchy and i try to correct slightly i flip or run off the track, it is fine through the other parts of the track. can someone help me????
There is lots of good advice posted in response to your question. 1/12 setup is touchy as someone mentioned. One other item that could cause lack of high speed steering (on power) is up travel at the rear of the main chassis, controlled by center shock length when extended. If this is too much, it plants the rear end on acceleration at the expense of steering. Don't have any advice for a setting on an L4, but maybe someone else does.
Rich Chang's set up guide was written for a link car, but the same principles apply. Good guide.