Alphabettispaghetti
Club Member
Ok so 70mph will be nearly 4000 rpm. When you are driving your modern car have a look at the rev counter when you are doing 70. Then change down until it reads nearly 4000 and keep it at that for a while.
My Sam has a 3.7 and it's fine.
Rob, in a 3.9 you're only 500rpm lower...... Its not a modern car.
On the flip side my modern car won't rev to 7500odd rpm, it will do upto 80mph without any revs.
3.7 is a very low ratio, useful for trips to the south of France though, seems an odd choice, quite a bit more touring than sport?
To be clear, 4.44 ratio diff 70mph is 3696.2839rpm.
3.9 3246.73 rpm
3.7 3080.23 rpm
I'm not sure what it is you worry about with a 4.44?
Thats all based on 205/60/14.