pp13bnos

I'm going to be taking my 8 out to the drag strip this weekend. I'm hoping I don't break anything...but I began to think...what if I did? Would I put it back together all stock, or play around with some different overdrive ratios? It would be nice to have a true highway gear like the 3rd gen Rx-7s, or the gsl-se 5th gear. I know fuel mileage would greatly increase, at the expense of 6th gear acceleration. (Is there ever realy and top gear acceleratioin in a N/A rotary? :D) I was'nt worried about fabrication. I'm pretty good friends with Rob Golden at Pineapple Racing. But what made me wonder was how the Rx-8 picked up the speed at wich the car travels? Do they use wheel speed sensors, or is it something along the lines of a electronic speedo gear? I guess I'll go pour over the factory workshop manual, and try to come to a conclusion....but if somone allready knows, feel free to throw your input in. Thanks, CJ

rotarygod

Your 6th gear is your highway gear. It is the overdrive. Your 5th gear is the 1:1 ratio that the RX-7's and most other cars (5 speeds) have in 4th gear. You just have an extra gear to play around with on your way up there.

pp13bnos

uhhh.....I just want a taller 6th gear. I want something that at 80mph, I'm spinning the engine around 2,900-3k rpms. I was aware that the 8s 5th gear was 1 to 1. I hope I did'nt confuse anyone. CJ

rotarygod

OK makes more sense now. You need a 7th gear!

MazdaManiac

iTrader: (3)

It uses the wheel speed sensors and the tranny speed sensor.

Mazda Monkey

Wheel speed is picked up by the ABS wheel speed sensor. The ABS / DSC unit sends the speed info through the CAN line to the PCM & instrument cluster.