Ok all good info.
Cheapest option for me then will be to fit some 195 45 15 tyres to some spare wheels and try it out. Plugging the figures into a gear calc gives very similar figures to changing the FD to 3.94.
Bonus is I can switch between the two with a simple change of wheels so will be able to do back to back tests at the track. And it will also lower the centre of gravity slightly which will always help.
Give it a go...
That'll certainly lower your gearing. I'm sure you'll like it.
We tried something similar on a mates VR6...changed his 205/40/17s to some 195/45/16s (my spare Fabia wheels) and he did an afternoon on the track with them...that was enough to convince him to change the FD on his VR gearbox whilst fitting a Quaife.
MS sounds like a steep learning curve to start with but worthwhile if you are constantly changing something performance wise.
It is Paul. Not the easiest mapping interface either...but effective and pretty cheap.
It's good for really learning about engine management systems.
