this is getting very old very fast (overheating) PLEASE HELP!!

[09 lex 250]

ok so i just get done running the car in a local race today and through out the entire time i could not get my car under 200 degrees in a 6 min heat! i am currently using a lrp combo/sxx tc spec with a x12 7.5 motor. i first was at the fdr perfect and motor was comming off at 210!! then i dropped to a 19 and it shed only 10 degrees. my gearing is 84/21 and 84/19.i inspected the car entirely and the only thing that is getting hot is the motor and everything else that surrounds it. lrp settings on the speedo are 1/2/2/0.motor insert is standard at 4 dot. can anyone please explain why this is happening? my old b44 use to come off at the track around 145-150 all day long with the same motor bit a sphere tc this was sold about 5 months prior to getting my bmax.i read somewhere on this forums about people having excessive heating issues and i totally do not know what to do and do not want to touch my car untill i hear some advise from you gurus that have actually had the same issue and have resolved it!

thank you and please heplp me with this i have a major race in 3 weeks and do not need this issue again when i go run!!

thanks in advance

[CODMAN]

Lex, have you tried that motor in another 4wd buggy with similar FDR? Because it could be your motor (even if in the past it was OK). Or try your current setup with a different (similar) motor? I think it's worth a try to see if you hit similar temps. Obviously, with the motor removed, do you feel any binding in the drivetrain? That needs to be checked...I'm currently running a Mamba max 5700kv system (from what I know roughly equivalent to a 6.5T-7T sensored motor) and geared 84T/22T and my temps are coming off at 170ºF in the summer heat here (yes, there is heat in Canada...), Although I do have a heatsink and fan setup on both motor and ESC...In all honnesty, I find your temps way high for a 7.5T with that gearing... Although the LRP motors are known to run hot...Hope you find the problem!

[samd]

Lrps do run on the hot side, but they do have a higher temp rating then other makes. Ok to 100degC which I thinks around 215degF

[Yardeeee]

I'm sorry I can't be more help on this as I race for Novak and have never had an issue with heat, but I have a friend who uses an LRP X12 6.5t in his BMAX and after every race his motor is always scorching hot. I do wonder whether it is the standard timing setting which is maybe just a bit too high and causes excessive heat, with the BMAX being such a heavy car?

I run a 5.5 Novak Ballistic on 21/87, I have never used an 84 spur but when I first had my Yokomo, I did always find that the gearing options with an 81 spur used to make the car run hot which made me standardise on 87 for the past 12 months...

Hope you find a cure!

[DCM]

your not running a stock spec motor timing profile on the esc?

[09 lex 250]

thanks for the replies everything is stock settings on the timing on the motor and on esc the problem has to be in the center housing! ive tried everything you can think of.plus when it starts getting hot the slipper comes loose for no reason aas well this is getting very frustrating and have never had any issues with this car up untill now so can someone tell me how to free this whole center gearbox up and stop my slipper from comming loose randomly? ive read threads on this forum but cant seem to understand because one says do it this way a d visa versa its not like i can just ru to the hobby store and get new parts at anytime any help would be greTly appreciated