monster1971
New Member
fitted new carb to the series 3 a little while ago and i now get about 12 to the gallon ,this does seem a bit low to me what are you lot getting out of your 2.25 petrol
Yes, I'd not go for RR diffs unless you have a properly sorted engine. Before I'd put the higher torque cams/9:1 head on mine it was pertty hopeless now it is spot on.
As I've said before getting hold of a wideband Lambda sensor and tuning your carbs is a worthwhile exercis or at least was for me....got more mpg without losing any top-end poke by swapping a couple of jets.