Chainsaw Repair

Trout as far as a race saw I will take the 170 psi over the 240 psi every day of the week, month, year , I can run the saw on alcohol/nitro at 170 but thats about its limit before its start going backwards , you loose rpms and build to much heat on a good pipe saw , My goal when building a new racesaw is 165 to 175 , even the smaller bore saws like 272's donot like that much compression , 150 to 160 is good for them cause of all the rpms they turn