I just did the SP motor with 6 cell. WOW the car really moves. I thought the people where jokeing when they said it would spin all 4 tires when its aginst the wall.
Im thinking about going down to 5 cell that way there is less power. but then again the more weight might be good.
ied say go down to 5 cells its gonna be easier on ur car, you want less weight i have the spinbrush motor, ive found i have to cut down on the power im givin the car in turns to keep from spinnng my skyline out even with awd i have the spring kit it didnt help alot the factory springs are actually pretty good
ied say just cut down on the power ur givin the car to control it more in turns and such