Quote:
| Originally Posted by skidlids For Steve's later engine that was 118mph in top, to get the same speed out of a 583 engine with the 2:1 Primary you would need 15/42 and also rev to 8750 or go 15/41 and rev to 8500 |
I am having trouble believing that is possible. The highest speeds measured at the BSB Brands weekend were about 112mph, at a point 400m from a third gear sweeping corner. I don't see that, even with another 100m to play with, it is possible to hit 6mph more than that from a slow 2nd gear bus stop. There is no way my motor could pull up to 8750 on 15/42 by the bridge. It was only just pulling those rpms on the 14/43 gearing.
(Skids, check my Primary against those rolling road figures - I was running 14/43 at Brands)