you are wrong again because tl3-t has nothing to do with tuned the t refers to the turbo cut on the crank bell. the tl3-t is roar-ifmar legal where the tl3 is efmar leagl euro the tl3t like i said has more work done to the crank but both motors are modified the same other than the little more work done to the tl3-t. And where i race at the tl3t holds the top speed record at 68mph for .12s the so your motor i not tuned corretly the rbrc does have more bottomend yes but it does not have more topend jps are known for there top end they do lack so bottom end but when it comes to topend speed they are second to none!!!!!!!!! you need to do some more research before you comment on something. and by the way the murnanmodifed rb r3 is a lot faster than the rbrc it has more bottomend and more top end