Originally Posted by JKyte5
I need help fellas. Im running vta at my local track and am getting smoked coming out of the corners and in the straight. Im running a 25.5 Ballistic and a GTB esc. My pinion is a 49 and my spur is an 80. These guys are killin me speed wise. Im not a great driver but at tha same time i dont run into tha walls or crash people all tha time either, just descent i guess. Any ideas on why my car is so down on speed????? Any suggestions????? Running a good 2s lipo recalibrated my esc to default and all my settings on my controller are at full blast and still no speed........Please help with a checklist of things yall think it might be......thanks
The guys have all given you good suggestions for places to look at to find if something may be mechanically wrong with your car.
I would add a few more as well as a few observations.
of the fastest TC3/4's that I have seen do not run anywhere near the FDR of a belt drive car, on average size tracks, due to the added rolling weight of the drive line. (something to consider when gearing your TC3)
There can be up to 1000 rpm difference between motors when at full timing if not more, at the sacrifice of efficiency and then more heat.
I would consider putting your GTB2 in the VTA car as well to make sure that there is nothing wrong with your current esc.
Your tires, older tires that have a considerable amount of runs on them and lots of sauce will have a larger diameter versus new. The older tires will have more top speed,and potential corner speed versus a new set because of the roll out and side wall flex.
Is your car weight biased to the front or rear? Front bias has a tendency to understeer/push, while rear biased can become rear loose as the weight swing through the apex.
Is your car's wheel base full long, long front, short rear, long rear? These can and will effect forward bite,steering,side bite, etc.
The angle of your links in realtionship to the cvd's will and can also effect all of the above as well.
Lots of food for thought, didn't directly answer your questions but another direction to look.