|
If the 4 cylinder Susuki engine is truely superior, you could keep all 4 cylinders and destroke the crank to reduce displacement to l1. That might get you closer to the 3 cylinder's mpg numbers, but the cost would be huge downside.
At a minimum, offset grinding the crank and rebalance ~ $400, semi-custom pistons w/greater compression height <move the pin down the skirt> $500 or custom length rods for a Suzuki, ~ $200ea. You might get lucky if you search high and low, and find a slightly longer OEM rod from a similar engine that could be altered slightly to work, but my experience with mixing and matching rods and stroke regrinding crank journals has been 'it's real time consuming' and not real cost effective.
|