Hello all,
I've got a '81 Fairmont (foxbody) with the 200 I6, C4 auto trans, and 2.73 7.5" rear end. It's super anemic around town because it shifts very early and bogs the motor. It goes into 3rd at around 20mph under normal conditions and bogs until about 40mph. On the highway around 50-60mph it's got good pep.
I've heard that throwing an AOD at the 200 will just bog it down further unless you regear it, I was thinking 3.73's 8.8 out of a auto Tbird until I found out I had 2.73's.
I don't have a tach so I don't know if my rpm's at 50mph are acceptable for mpg's right now, but I'd assume the extra range of the swap would make the car more enjoyable to drive. Most of my driving is 50-60mph, but there are many hills and a town to drive through.
Could someone with more experience tell me if swapping an AOD and 3.73's is worth all of the work for a marginal increase in driveabillity?
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