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My last combination showed 23% loss based on the math from the engine dyno to the chassis dyno rear wheel HP Traction and wheel spin can laed to false readings at the rollers as far as RPM and true output The thing to remember about all types of dynos is they are a tool to measure changes and the results of changes No two dyno will read exactly the same as each other



that what i want to do, carb, timming, cam timming, valve adj, etc.. have this whole day for free so any suggestions, please make them, i dont want to wast time