One shows standard gear ratios of a 131 and one showing close ratio gearbox as used in 131 Abarth.
Both calculations were made based on a 7:43 diff.
- Close ratio gearset - note the 'tall' first gear giving higher road speed compared with standard and less rpm drop between gears.
- 131 abarth gear ratio.JPG (108.48 KiB) Viewed 4999 times
- standard 131 5 speed gearset
- 131 gear ratio.JPG (117.96 KiB) Viewed 5002 times
Look, what a difference a competition gearbox can make!
It looks like making the engine 180+ bhp is just the beginning of hard decisions and spending ... it really requires more! The diff and gearbox seem to be key.
Miro