XRAY - Model racing cars

Hi .need some help.i run a 13.5 t gm with hobbywing stock speedo.last week it started going slow after some running.switch of and on and will be ok for a bit but same thing.changed sensor wire and still not fixed.then checed setting.changed battery and checked wires.my mate runs all the same as me and..no problem.i cant find the sensor bord no more and dont know what els to check. Thanks

Is anything getting hot very quickly?

Try taking the motor apart and cleaning it out, then carefully putting it back together making sure all the shims go in correctly.

Skiddins

May well need resynching with your transmitter - which you do not mention; I speak from Tekin experience not Hobbywing which I do not run. I have had a couple of experiences where the motor ran fine but the turbo would not kick in; resynching solved it.

Hi.i will do so and see what it does.thanks.

Try turning off temperature cut-off on your speedo- it doesn't work with motors other then Hobbywing

Also check the voltage cut off point. I have disabled mine after cutout problems. the ESC senses the voltage of each cell and not the pack total.
Kevin

Hi.did as sugested and seems to be ok.went to the track today to test.my car just makes 5 minuuts but my mate cak run much longer.i know to run for 5 min but just makes me think somthings rong.somone els told me about the cutoff aswell so will give it a go on sat.thanks for the advice.

I am sure this isn't the problem but on the basis of your last post I think the ? needs asking - what is the capacity of your LIPO?

I thing the problem is the motor gearing or something wrong on hobbywing setup. Ifyou want send as you speedo setup. Also tell as what rotor has your motor?

Hi.my speedo setup.
Version.110930 stock
1-for-brake
2-0
3-2.8
4-6 punch
5-75%
6-50%
7-0%
8-6%
9-36º
10-18
11-enable
12-30º
13-5000rpm
14-off
15-400
I have a 84t spur and 30t pinion.my car is a t3 12.
I am running it at west london track wich is out doors getting reddy for summer.my mate and his brother runs exactly the same exsept they have 27t pinion.have fitted one now to try.my batterys are 5300ma and 50 c.i have tried their batterys on my car.will be testing on sat.thanks.

Hi.i did wat was sugested and changed to 27t pinion.changed speedo settings but left turbo delay of.seems fine now.thanks to all for the help.