RX7 Longer 5th gear *WIP*
grabcad
I am pleased with my RX-7's fuel efficiency while cruising in fifth gear at 3500 rpm (equivalent to 120 kmph on the highway). To improve it further, I considered purchasing an 84-85 gearbox and extending the fifth gear ratio. However, identifying the year of a gearbox is difficult externally, so I resorted to drawing a new gear. Standard teeth measurement: ???-31?-15 = 0.84 Updates: 19/12/2016 - Incorrect tooth measurements due to lack of precision between gears; synchronizer not detailed enough; taper surface for the synchromesh hub slide requires fabrication.
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