Quote:
Originally Posted by kyrix1st
I would suppose those race cars use sequential manual transmission, but if it's a radial race, probably is closer to GT4 spec.
Overall DCT would a better transmission since you don't have to worry about driver error, one variable down. I'm saying in some performance aspects, MT loses very little(downshift) or offers better(weight, gear ratio).
I don't think I've lost to any DCT in acceleration from 150km/h+, all else being identical; probably because final gear ratio is much shorter than DCT, so stays in peak power band for longer which is crucial at top speed. 4th~6th gear in E92 is basically a cross gear transmission.  |
It appears that BMW race cars do not use either a DCT or 6MT. To the best of my knowledge the Z4 GTE use a Hewland/Xtrac 6-speed semi-automatic paddle-shift gearbox, the M235R Factory Racer use a ZF 8 Speed Automatic, the M6 GTE uses a an Xtrac 6-speed sequential semi-automatic paddle shifted transmission. I am not sure what Transmission is in the BMW M4 ZTE that has been modified for Alex Zanardi but I believe it uses a centrifugal clutch.
I got a close look at Alex Zanardi's car (and got to meet Alex Zanardi) at an event at Manhattan Classic Car Club earlier this month. Other than its shape it does not appear to have very much in common with the production car. The driver's side door, which I would assume is made of carbon fiber, almost felt weightless when I opened it.