RE: cen ct4s (how can i make it go faster - Acceleration!!!)
A caveat of the CT045 kit is it was so tight, it wore a pulley completely smooth and also chewed up the related belt. I'm going back to the original setup.
FWIW, if you drive it hard, you will pay to own a CT4S, around a year after purchase, I have over $1000 in mine now from all the crashes, self-destructing parts and shipping costs... My buddy with a Kyosho, has never had ANY problems with his at all, 'cept of course of a handfull of crashes he caused himself. Compared to his mine feels like a tortise.
I will never buy a CEN car again. Look for something with driveshafts instead of those awful belts.