Re: RPF1 vs PF01 in terms of weight
[quote author=phate link=topic=168260.msg3567814#msg3567814 date=1268597926]
Simply because the wheels weigh more overall does NOT mean that more power is required to turn them...Unless you know the mass distribution around the wheel, then you don't know the whole story. Said another way, if that mass is more heavily centered on the inside of the wheel radius, then there is less mass on the far edge of the radius, which would result in less effort required to spin the wheel.
Simply think about a lever with an endpoint as the fulcrum. Where you put the mass on that lever is what defines the required energy of movement.
true true, the way PF01 is designed, the spokes are spread out compared to the RPF1s so there is a possibility the mass distribution is more on the center. Looking at the design structure of PF01 gives more integrity compared to the design structure of the RPF1s so it is really possible to have lighter mass with the further diameter of the wheels.
Hopefully enkei would justify their statement on the PF01 being better than RPF1 and post the actual weight of these wheels.
Buddy Club Racing Condenser||AEM CAI||5000k ddm slim hid kit (FOGS)||smoked LED markers||Mazdaspeed 3 OEM rear wing||CP-E 75 DURO||Borla CBE||TWM short shifter and shift knob||Mazdaspeed3 OEM Sway Bars||Hypertech Tune||17x8 RPF1