Losi 8ight-T & TP4070 (40x102mm) motor

[Dr_T]

...and some preliminary datalogs...

Geared 27/35, for a no-load wheel-speed of 146 kph (91 mph). Was a quicky, so no videos yet unfortunately... only had time for one pack. I didn't drive it in a long time and space was a bit limited, so I only dared to bring it up to a GPS recorded 109 kph (68 mph), which it would do within 3 seconds and within a distance of 50 m from standstill. Was fun to be out with it again :). To record a good top-speed with the 1 Hz GPS logger I need some more space and confidence. Might try to find a cheap Eagle-tree GPS sensor, as those log with 10 Hz.

I changed too much at the same time (diff fluids, shock oil, spring rate and tires), to be able to pin-point what did what, but I really like how it drives now, seems "sharper" and more controllable than before. Front wing is not finished yet, but at the speeds I did today, the front did not seem to lift.

The 1/5 TC GRP tires are a huge step up from the normal 1/8 truck tires, a lot of grip and car can accelerate quite quick now, found some pieces in the logs the car went from 25kph to 84kph in 1 second. That's an acceleration of 16 m/s^2, ~1.6 g, so 1.6 times faster than Mother Earth would accelerate it if being dropped from the rooftop :D. That comes with a lot of violence though, I was really impressed to see and hear the car working that hard, and the datalogs do scare me a bit - biggest recorded peak was 336 A, which made the 5Ah 60C Turnigy HD battery drop to 3.28 V/Cell. You can see in the logs it takes the batteriy about 7 seconds to recuperate from such a hit...