2009 TrackMagic Shifter Prototype, Very Similar to a Praga Tacho Evo, 30/32mm chassis.
The problem I am having IMHO most likely simply a limitation of running such a stiff chassis with a 206 but I will see what your thoughts are on it. The problem I am having and clearly where I am losing time is coming off the corner but not any corner. So, if the corner is followed by a strait of any distance there is absolutely no loss in speed infact in many corners I am coming off faster then every other racer. However, if the corner is followed by a corner in the opposite direction I am losing significant time and dragging down the motor during the transitional time between right and left or left and right. The quick transfer in load seems to be having a major effect on the speed of the kart. So usually only in 1 or 2 spots on the track does this negative effect hit.
So far, I have increased Caster, widened front track, reduced rear track, cut the axle down further, moved weight to the rear (seat change) and each time the kart has gone quicker. The biggest change was for sure moving weight to the rear. I have had tire pressures from 15psi-23psi during different sessions but generally I have found tires around 16-19 depending on temp work the best for my kart on Hoosier 60B
My Theory, The 32mm cross bars are simply not allowing the load to transfer from inside wheel to outside wheel and back quickly enough to keep the motor from dragging down after all there is a reason most people don’t run shifter chassis.
I have tried as well with seat forward widening rear and that definitely made the problem much worse.
Option 1, Go to the extreme and see just how much rear weight etc… it can take
Option 2, Run my 2020 Intrepid Freedom 206 chassis…