I'm going to be running at that track bridgeport. If necessary I will go with a faster engine, but going to practice with the MT12. I did awesome with it before and I can do it again. The r40 has been lightened, regeard, and I now have a better pipe and the 30%. Lastly I got that tiny 800nimh 5cell pack to slap in there as another weight reducer. Really gittery to try it, but have to wait till the snow we are getting melts. Rody is great usable power, but for bridgeport mehh...it's not as big as my home track Floyd Bennet. An RS12 will be suitable power for that track as well as an RB V12 turbo. My main thing is to be consistent.