Originally Posted by Francis M.
Although this car has less adjustments than the RRR. It seems to be more in the ball park set up wise when i go from track to track. the main difference i use from stock is i use hong nor spring wich is the same as associated springs. I always start with yellow front and red rear or copper rear and just mess around with the droop. I haven't done anything to the bulk head. another thing I changed on the car is I used mugen aluminum hexes that locks and tamiya shims same size as the 10x15 bearing behind the hubs to get rid of side play. As for saving money this car has saved me a lot of money since making the switch. I really liked the RRR but could not afford to replace the pinions along with the out drives every two meets.
Thank you for your prompt response. I bought my RRR second hand off a friend and as yet have not raced it, i have just been practicing for the start of the season. I fully agree with you about the pinions & the rear diff outdrives...
My biggest fear with the GPX4 is parts availabilty, i usually shop online in HK, but no body seems to have Hobao parts from what i can see. If i order from the US i will have to pay duty when it gets into the country