Hi folks...the esc was so old i forgot that i had to connect another 4 cell 1.2V battery supply to power the receiver..it works fine now. Phew...cool now i can see if this old esc can match today's newer ones..so far it runs fine without losing control of my car. i guess older escs still do need an additional power source. new escs seem to have better BECs. i'll post some pictures of my setup soon here too. hope this info is useful!