Originally Posted by clp.eng

I have read that answer but I don't have the 19T pulleys so I'm guessing this will not apply to my set up.

Originally Posted by Kevin Marcy

Unfortunately, the motor/ESC combo you've chosen is a sensorless system, so changing to a 21.5T motor would probably not work well. Sensorless ESCs do not work well with high-turn motors due to start-up issues. The one basic rule of brushless systems (sensored or sensorless) is if it's too hot, go smaller on the pinion gear. There isn't any "magic" FDR that fits all tracks & all cars. The 9T motor you've got is also probably why you haven't gotten much advice on gearing since most racers are running sensored 17.5T or 21.5T motors.

Spinning tires will NOT make your motor too hot. All motors pull more amps at low RPMs, with the amp draw decreasing as the RPMs go up. (Amps = heat.) The only way under-gearing can maybe make your motor hotter is if the car is so slow that you spend 100% of the time at full throttle.

Originally Posted by ttsquirrel

well, my first day of racing didnt go well at all...

i was barely able to finish the car about 1 hr before the racing started. i am using this for my motor/esc. http://www.hobbyking.com/hobbyking/s...dProduct=42712

i bought the trackstar programming card to setup the esc but the freaking card would not work with this esc!! and then

with no programming card and no instructions on how to setup esc, i was stuck. the car would drive but i had no brakes.

Originally Posted by Kevin Marcy

I'm not sure if you're still fighting with this ESC or not, but if it came from the same factory as the Turnigy 1S ESC I got, the throttle setup might work like this:

1 - Hold full throttle on the transmitter
2 - turn on the ESC
3 - Keep holding until the ESC flashes green LED & it "rings".
4 - red LED now blinks & ESC beeps. Hold full brake.
5 - Keep holding until it "rings" again.
6 - yellow LED blinks & it beeps. Return trigger to neutral.
7 - ESC will ring again.

Actually, looking at the picture it doesn't appear to have 3 different color LEDs. Still, a procedure similar to this might work...

Originally Posted by ttsquirrel

Ok well thanks for that info. I'll have to stick to this motor combo until I have enough $$ to purchase another. I was thinking about lowering the throttle setting to about 90-85%. Would this help me be able to control the car better?

Racing for the third time tonight. This week I was able to do 5 minute runs and kept the motor about 140. Hopefully I'll be able to finish all my races tonight.

Thanks to all for the advice

TTS

Originally Posted by Yogi-

Yes turn the throttle down to 80% and sneak up from there. When you stop hitting walls and your lines come cleaner go up a bit.most classes of racing are won by the guys that don't always have the fastest car but have the cleanest run.A 15 sec lap can be hard to get back when you need marshalling a couple of times throught the race.

Originally Posted by Loomisfin

Hello everybody. Wow this is a long tread, i'm somewhere around page 50

So i bought a Turnigy td10 from hobbyking witch is from what i understand exactly the same as SZS. My first build and first touring car and it has been really fun. don't know about speed but really easy to drive. just tweaked the suspencion a little.

But then DISASTER i stripped my spur gear and it takes a long time to get the parts to Finland. So my question is are there spurs from any other brand that i can use? Local shops stock traxxas, hpi, xray, tamiya.

Originally Posted by Loomisfin

Hello everybody. Wow this is a long tread, i'm somewhere around page 50

So i bought a Turnigy td10 from hobbyking witch is from what i understand exactly the same as SZS. My first build and first touring car and it has been really fun. don't know about speed but really easy to drive. just tweaked the suspencion a little.

But then DISASTER i stripped my spur gear and it takes a long time to get the parts to Finland. So my question is are there spurs from any other brand that i can use? Local shops stock traxxas, hpi, xray, tamiya.

Originally Posted by thefan

So i tried a ball diff in the rear and have to admit i love it, no more fluid all over the rear of my car anymore, its super smooth, i also installed the 7075 alloy drive shafts in the back plus a narrow chassis so basically its a full zero with xi rear tower now

Originally Posted by kanamin

I tried a 64p RW racing spur and it didn't work. Don't know about their other spurs though.

Installing the XI motor mount V2 right now, not too comfortable with the material left after cutting the root hole, I'll post pics later.

Also got the alum servo mounts and am now realizing it will require some shimming to fit right.

Originally Posted by ttsquirrel

Where did you purchase a ball diff from?