OK the build is complete and I have to say I only ran into one other issue. The center shock seems to leak a lot. I did some playing and found that the shock leaks from the shock shaft seal. This seems to be caused by the seen of the O-ring not being right enough and it allows fluid to pass when cycled. I did not find a solution to this but did note it when I finished the car. I have to say overall this was a pleasure to build and I want to thank Markus and everyone at Serpent for this car. Now if only I could drive better
Also having finished the build I decided to test the balance issue with brushless motors to see why everyone is complaining. I did not have one of every brushless motor on hand so I just played with what I had. I did this test by putting in the axle, motor, wheel screws into the rear pod and then set it on balance posts. To get The front of the pod to sit on the posts I used a CSH screw to form the pivot point. The results are a bit alarming in my mind. LRP 7.5-13.5 motors the pod needs 21gm of weights added to the right side to make the pod balance. LRP 4.5-6.5 took 23gm. Trinity 10.5 (only one I had on hand) took 17gm.
Now I am not an engineer and this is not a very accurate test but these seem like large amounts of weight when we consider that 865gm is the 2009 ROAR Minimum. Which was increased from the 2008 min weight of 794gm. Having said all that I have to say I am not good enough or fast enough to have this effect me. But while I had everything apart I figured I would test it. Does anyone know how much weight the tungsten diff rings add? I would bet not enough to matter.
Oh and for the record my WC Corally SP12X was even worse.
Thanks again for the wonderful car.