| correct me if my following reasoning has any flaw: when the flywheel and the clutch are engaged, the engine's power is applied to the clutch, then via the clutch to the transmission, then to the driveshaft, then to the differential, then to the wheels. Scenario 1. If the rear wheels do not touch pavement, then the only performance increase we'll be able to see , is this: suppose:
mass(which is proportional to its weight) of flywheel before lightened = F1
mass of flywheel after lightened = F2
mass of all other parts abovementioned (clutch, transmission , driveshaft, rear axil and wheels) altogether = A because A is way more than F1 OR F2, and the engine's power is applied NOT JUST TO F1 OR F2, BUT TO A+F1 OR A+F2, the reduction of F1 to F2 is really really not big enough for a human to notice, although you might feel some better response(especially when clutch is not engaged in which case th engine's power is only applied to F1 or F2) Senario 2: Now we look at the big picture and let the rear wheels touch the pavement.
If the engine's force = E, the whole car's mass with stock flywheel = M1, the whole car's weight with lightened flywheel = M2 we are only to observe an increased acceleration by E/M1 - E/M2 , this number is very very minimal because we are talking about maybe 3300 lbs VS 3290 lbs as the denominator. I highly doubt if a human being can notice this small of an acceleration increase. thus, in my reasoning, the car's performance is only minimally increased. So minimal that any claim that you can "feel" better performance is pure psychological. so correct me if im wrong, i've been baffled by this for a long time. ( don't get me wrong, I have specialtyZ's lightened flywheel installed on my own car)
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