[rgofast]

I have the later tip S in my 98 993, but it is still the 4 speed. I think the only difference is the S has the steering wheel buttons, which are real convenient when I am commuting and eating at the same time. I hardly ever drive in the automatic mode, but I have experimented a little with how the computer responds to how I manipulate the accelerator. I shift it in manual mode and can match revs on the downshifts if I blip the throttle at the precise time. I have left alot of 993 six speeds on acceleration with this transmission, as the average driver cannot shift as fast as this transmission. The torque converter locks up once you are in second, and there is no loss of traction during shifts. I bring the revs up close to redline before I shift up, but If i forget the transmission will shift up before the engine over revs. We use Swepco hydraulic transmission oil in these units and find that it improves the operation. Before changing to Swepco, my tip used to shift up prematurely in the manual mode, if I chose not to shift, and now it will rev up to redline if I let the transmission over ride the manual input