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