Originally Posted by D.a.v.e
To answer your first question. Yes running at my pace & setup I could run a 12 min race no problem. I have done 15 min before at practice but not all were race pace. Thats why I'm curious how much more power your using over me for that extra 3+ sec a lap?
I suspect ESC settings may use more then you give it credit for. The breaks heat things up quick. You run yours at 100% and sometimes lock up your wheels, until last week I had mine at 40% and no drag break. I also had the torque dialed way down (until Bill messed with it) and I run a 19 tooth pinion. I noticed after taking my external BEC out that my ESC temps have gone up 10 degrees or so (I still don't have a fan on it). I suspect if I went to a more aggressive setup (and could drive as well as you) our power usage would be more in line?
I also wonder how much our different tire diameters play into this. Running the smaller GRP's vs the larger Sweeps I've been swapping between this season? If I cared enough I suppose one could figure that out with one of those online calculators
It wouldn't surprise me if the smaller tires required a tooth bigger pinion?
Bottom line until I become a better driver I don't really have to worry about all this theory stuff that you fast guys do for an extra 1/10 of a second
But I would like to know if 6 cells is really any better or if its just theory? Sounds like I need to suck up the cost of a motor and find out for myself.
LOL Dave, you cant compare going out practicing to a race.
I can drain my whole pack practicing and pull my car off the track at 130 but soon as I race my temps shoot up 50 degrees and my run time shoots down.
Gary runs 4s too and he can sit out there and practice for a ungodly amount of time lol
During the hot days of summer your motor was at the same temps as mine I don't see how you think you would be able to "race" for an extra 7 minutes and not over heat. Im sorry but I just don't see it. one day after a race you told me your motor was at 210?
Last year when I started out my lap times were 3 seconds slower on average but I use to do a few practice laps and run the entire race with a cheap 5000 mah battery and never had a problem completing a race.
this year that battery wouldn't last me 12-13 laps lol
it kind of shows you the difference those seconds make.
yea a 40% brake vs a 100% brake would make a difference lol never thought you would have it so low so id assume difference would be minimal if you were at 70, 80 or 90 percent. I leave braking all the way up and dial down on my remote and adjust as needed. when traction is high I can dial it way down but if its low I need to turn it up.
yea the GRP's require a larger pinion because of the roll out is shorter on the GRPS. With Sweeps/Alphas my car freakin hauls ass down the straight lol
Id honestly have to gear a tooth or 2 down for them. that's kind of why our cars are pretty much even going down the straight even though im geared taller.
Dave told you since day one, skip all the small BS with setups and shit lol. worried about how much power is used is even more useless. as you get faster it will all change anyways. better to spend your time driving =)
just find a decent setup and run with it. our track conditions vary to much to try and keep the car dialed even if you find some magic sweet spot it might work one day but the next day your cars can be all over the place lol
On the last race day bring the eagle tree if your really that curious and if its not to much work to connect it we can try it out just to for the hell of it.
These are the only ways I think a 12+ minute race would ever work
Night time driving, we use to parking lot race at a homedepot all night. 5000 packs would last us 20 minutes and our motors wouldn't pass 130-140 at most.
or limiting the speed of the cars to 3s on high KV motors. last year lesh and I would run 3s for fun and besides our long ass straight away the rest of the track was fun with the 3s motor. top speed would be around 45 but heat stayed wayyy downnn.
or race on 50 degree days lol
Heres a better question, If I switched to a 1700 on 6s do you think id have any chance in hell making a 15 minute race? lol