Currently I have a 1991 318i with a 4.10. I'm not sure if it's open or LSD. I'm getting 25mpg on average and it's not great. I had a 318is that would easily get over 30mpg but that car was a lot more modified. This car is bone stock.
I'm not crazy about speed right now. Just looking to get better fuel economy so I can justify to my wife that this 23 year old car was a "good" purchase.
What is the lowest ratio diff you would swap into this car? Is a 2.73 LSD going to make it sluggish? I'm thinking low like a 3.xx LSD.
I'm not crazy about speed right now. Just looking to get better fuel economy so I can justify to my wife that this 23 year old car was a "good" purchase.
What is the lowest ratio diff you would swap into this car? Is a 2.73 LSD going to make it sluggish? I'm thinking low like a 3.xx LSD.
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