Quote:
Originally Posted by cRiPpLe_rOoStEr
Sure there are some limitations with a relatively small engine in a truck, but eventually you might overcome this issue messing with the camshaft, ignition timing, exhaust pipe... Well, the list goes on...
And some weight savings are also a good measure.
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Looking into it deeper, many Ranger guys are running 31s on 3.73s with good results on the same 2.3l DOHC(154 ft-lbs), especially on the highway. Though most prefer to regear to 4.10, because they are more offroad or towing oriented. The difference between stock tires(225/70/15) and 31s is about 12%, so my thinking may be too conservative! With my improved aero and driving style I could probably get away with a 10% net gearing change after tires and rear end swap with no issues.
Unfortunately there is not much available for power/efficiency mods on this engine without spending big money...
