The 6.9 and 7.3 IDI's will run forever but are severely short on power for pulling heavy loads...Even adding a turbo doesn't do much for them as they are 21-1 compression and 5-7 lbs of boost is about it.....To make serious horsepower with them you need to put 17-1 pistons in them so you can put the boost to them and make about 250 horsepower..When a guy buys a dually he buys it to pull loads...My 1997 Ford F-350 with a 460 pulls much better and gets the same mileage loaded as the old IDI did..
IH told Ford they would factory turbo the IDI engines for $300-400 extra and Ford claimed it was too expensive and that they didnt need it..Boy,were they ever wrong..
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Today's Featured Article - More Memories of a Field Service Engineer - by Brian Dye. Introduction: The author worked for one of the largest Ford tractor dealerships in England as a trouble-shooter on tractor engines, hydraulics and combine harvesters from 1963 to 1972. In 1972 he became a dealer manager and finally left the dealer net in 1975 to run his own electronic design and manufacturing company. [Editor] We live right in the middle of Norfolk. The dealership that I worked for sold Fordson Tractors from the 1920's and some of t
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