








4-Speed manual gearbox inspired by TY85 Symmetrical All Wheel Drive from Impreza WRX STi 2004
Hi creators,
I didn’t have an idea that there is a may challenge at all, I have simply found time for LEGO at last.
My next project is going to be 1:8 Subaru Impreza WRX STi from 2004 and I started from powertrain.
So here it comes:
2x BuWizz Buggy Motor simulating Boxer engine
4-Speed gear box with manual shifter, but motorising is optional
Functional friction clutch
Transmission has a regular layout of gears (H 1-2-3-4) which was a little challange.
All wheel drive
Compact packaging prepared for application in 1:8 MOC
Motorisation can be deactivated by pulling aside the shafts
Overall gear ratio (including diff) on each gear:
I: 5/63 (0,079)
II (edited on 10.05.2026@17:05GMT+1): 5/42 (1,119) prior edit: 25/252 (0,099)
III: 10/63 (0,159)
IV: (edited on 10.05.2026@17:05GMT+1): 5/21 (2,38) prior edit: 25/126 (0,198)
It’s still a prototype therefore harlequin painting. Once I recycle Škoda and Mercedes I’ll make it prettier.
What do You think?