Inliners International Forums General Discussion Hi Performance Building a 302 GMC for LSR

The mechanical engineers that have worked with the Winston Cup engine builders i've worked with, have explained it to me in terms that still border on a thesis level. Many times if they cant dazzle you with brilliance, they will baffle you with BS! Sometimes you would get an actual answer to a question, other times they would do that, usually meaning, you don't need to know! First, their main focus is on making the most HP and torque in the engines operating RPM range, usually between 7500-9000 RPM on Super Speedway motors, and around 6500-8500 on Short track engines. So what the engine does below that range, doesn't really concern them that much. They have done so much R&D in the R/L, that they have done exhaustive dyno and cam testing for all possible rod lengths(starting with 6.125" and going to 6.350" with rods made for lengths every .050 in between)and stroke combos. All that with no definintive answer as to why the loss of torque really occurs,other than it does, and they can prove it does. But that loss doesn't affect them, because it happens much lower in the RPM range than concerns them. Im sure that with the same R&D and dyno time that they spend with their engine programs, Ron could probably recoup what was lost, but he would have to know what he lost to begin with, and establish a baseline to compare.