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Old 05-12-2006, 06:32 PM
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Join Date: Dec 2005
Posts: 128
Turbo 4.0?

Got a wild idea for my 92 YJ the other day...about the same time I realized I'd have to pull my now-cracked header off to re-weld it, LOL! I also play with the turbo dodge cars so I have a pretty decent sized pile of turbo goodies laying around the garage (garrett turbos, 2 bar map sensors, boost-referenced fuel pressure regulators, etc) and was thinking about having a garrett turbo flange welded to the bottom of the header, and plumbing in a turbo. Oil and water lines would be simple to plumb too (-AN bungs are cheap), and hose from the turbo to the throttlebody would also be easy. A boost referenced fuel regulator (higher manifold pressure equals higher fuel pressure to the injectors, equals more fuel to meet the increased airflow) should bolt right into the fuel rail and if it doesn't meet the requirements I can have a buddy who burns custom turbo computers try his hand at one for the Jeep. MSD makes a standalone ignition box with boost referenced timing retard to fight pinging and holes in pistons. Anyone ever done, or thought about doing, this sort of thing? I figure even a mild 5psi boost would make a big difference in driveability and hopefully fuel mileage (right now a measly 15mpg mixed cycle). Any thoughts?

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