[discostu]

Originally Posted by bender

After trying the swb mod a few weeks ago my car was better, but I was convinced it was mainly due to the driveshaft sweep and not the placement of the shocks.

I calculated the weight % and distance when the shocks were at the back and the value was relatively small, so I didn't think it would make much of a difference.

Last raceday I modified the arms so that the driveshaft sweep was the same as the swb mod, but the shocks were back on the front of the arm, and I expected the car to perform similar to the previous meeting.

In the end, the car was terrible, and I had a lot of trouble trying to get grip. I ended up running almost 4 degrees of toe-in at the back, which combined with the driveshaft sweep, made the car handle very badly. This was very surprising as I didn't think the location of the shocks was that important.

For tomorrows meeting I have made further changes, reversing the suspension mounts as posted above (the Chris Long method).
You end up with a slightly shorter wheelbase than std, plus only a little more driveshaft sweep, and of course the shocks are at the back of the car, but doing it this way also means all the arms and suspension mounts are further back too, which adds to the weight at the back.

yeah dont forget these cars are very small and it only takes a slight change in spring oils wieght distribution to compleate change the feel of the car prime example the tamiya 501x and the 511 they are very simular cars the battery placement is about 2mm diffrence on the chassis making it feel maybe easier on the track if its easier on the track its easy to drive it fast and more importanly consitant.