A friend is in town for th eweek and he recently picked up a used e-revo brushless. We Spent the past day rebuilding his truck as someone decided to sell him a nice mess. Now we can't keep the front end on the ground ever. This is for bashing
Truck setup is as follows.
Trencher x tires (non taped) Came with the truck.
2x 3s traxxas lipos 5000mah
Slipper is about a half turn out ( using aluminium pads)
Punch is set to 20%
Front diff has 50k
Rear diff has 30k
I don't know shock oil and current spring rates.
Currently estimated gearing = 47 mph
The Truck now runs great but once you hit about half -3/4 throttle .. the front becomes perma airborn.
I assume I have a few options Which of the following would have the most drastic effect ?
1. Swap the front and rear diffs putting 30k in the front and 50k in the rear.. I know it should cause more power to go to the front but will that totally remove his wheeling ability (Always fun) .
2. Gear the truck up . Go up to 20/65 which would put me at 59 mph. I've seen the general rule is 4s = 40 5s = 50 and 6s = 60 but mind you must watch your temps and make sure the motor / esc are happy. Lower gearing can create more torque which could be leading to the truck being wheely happy.
3. Change spring rate and soften up the back so that it isnt so stiff and the truck will sag under heavy acceleration instead of wheeling ?
4. Anything I may have missed that might help.
He is also currently looking at picking up a 4s setup so He shouldn't have quiet as much of a problem keeping it planted. But for the time being any suggestions would be appreciated.
Thanks in Advanced