Chassis Dyno Testing

[Cobra #42]

Georgia, There are as many questions as answers in these discussions. For example, when you start taking a engine that has been "dyno tested" and measured at the crank, what type of headers were used, are they the same ones you are running in the car, are the collectors the same ?? Mufflers, how long are the exhaust pipe, have both dyno's been calibrated and are using the using same temp inlet air. Carbs, type of oil, rear end lube,the list goes on and on. That why if you get into a dispute over who did what, drag both cars to the same shop same day and see what happens. The other issue may be when was the dyno last tested itself ?? That's why I don't concern myself about the HP numbers, what I like to see is getting my fuel air ratio to be even though out the entire RPM range and let the driver do the rest.