Whoa, hold on there John, the formula isn't relating MAXIMUM HP to MAXIMUM TQ. It relates the HP at a given rpm to the TQ at THAT rpm. You even proved it yourself when you stated that the TQ at 6000rpm is 78.6 and the HP ALSO AT 6000rpm is 90. HP = TQ * rpm / 5250 or HP = 78.6 * 6000 / 5250 which is 89.82857143 (well aaaaaalmost 90 hp) AND HP = 70 * 8000 / 5250 which is 106.66666667 (hey, where'd that .06666667 go???) :-) Rod VMOA #1169 ............................................. To unsubscribe go to http://www.sayegh.org/unsubscribe.htm .............................................
