Originally Posted by
Davidka
While the weight redistribution is commendable, you may want to put the steering rack back in. That bell crank will wreak havoc on your steering geometry. Perhaps you can drive the rack with a bell crank to re-locate the servo? To me, you've achieved what you were after simply by turning the battery.
I definitely put thought into the ackerman and bump steer for this project. This is the first rendition of this modification. I already have plans for modifying the bellcrank with fabricated parts to correct the slight bump steer I have.
As for the acherman, it is almost the same as the factory setup! I moved the ball studs toward the front of the car so that at lock, when the ball crank is at an angle where the linkage is very near the stock angles. Between center and lock the ackerman angles might be slightly different but at lock the tire angle are almost identical to stock. I did alter the bell crank position to change the angle of the outside tire to steer a little more, reducing the ackerman to suit my driving style. I like to carve corners not slide.
Keep in mind that EVERY other 2wd car (as far as I can tell) uses bell cranks. And putting a bellcrank setup on this car will not screw up handling, it just might take some sweaking to get it to work perfectly.
I have done a TON of research on suspension geometry to build my other projects and this is just one other to test of some of my ideas. This might turn out to not work but only time will tell. The limited testing I have done so far, just on asphalt, have been very positive. I like the more positive steering response the car now has.
As far as the weight distribution, it is almost identical to rear motor, in fact it's a little lighter on the front now.