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Diablo chip for a 1990 f-150 351

 
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Old 08-08-2004, 08:20 PM
90ford351
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Diablo chip for a 1990 f-150 351

Just wondering if anyone has put one of these chips in a 1990 f-150 351 ecc iv system and if it makes a difference is it worth the money to put a diablo chip in this truck its a regular cab long box 351 e4od trans 2 1/2 inch lift
31x12.5x15 tires 4.10 gears just change the from 3.08s huge update I was get 10mpg and now getting 13.5 mpg with 4.10s just wonder if the chip is worth it. thanks any info will help
 
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Old 08-08-2004, 09:27 PM
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If by "worth it" you mean recover the lost mileage.... no. The chip will not do a thing for the mileage, any gain is offset by the cost of premium fuel. It will help power, but how much depends on altitude, engine condition, etc....
 
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Old 08-08-2004, 11:57 PM
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condition of engine

will it runs really strong and I live in minnesota so alitude hiw does that effected the chip will i loose mileage with this chip or stay the same thanks
 
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Old 08-10-2004, 12:36 AM
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Altitude effects gas vehicles, chipped or not, an average of 3% per every 1000 feet above sea level. Mileage tends to go up slightly, but you need to run premium fuel with the chip.
 
 
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