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  #11  
Old 07-07-2013, 05:18 AM
Blackhawk021 Blackhawk021 is offline
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Join Date: Jul 2013
Location: Southwestern Ohio
Posts: 6
Vehicle: 2001 Dodge Dakota
Trim Level: SLT
Color: Black
Engine: 1997-2003 - 3.9 L (238 cu in) Magnum V6, 175 hp (130 kW)
Rep Power: 0
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Thank you 95dak. You've been so much help. I really appreciate it
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  #12  
Old 07-07-2013, 05:21 AM
Blackhawk021 Blackhawk021 is offline
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Join Date: Jul 2013
Location: Southwestern Ohio
Posts: 6
Vehicle: 2001 Dodge Dakota
Trim Level: SLT
Color: Black
Engine: 1997-2003 - 3.9 L (238 cu in) Magnum V6, 175 hp (130 kW)
Rep Power: 0
Rep:10
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Thank you 95dak,you been so much help. I really appreciate it.
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  #13  
Old 08-24-2016, 05:26 AM
Cade Conley Cade Conley is offline
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Join Date: Aug 2016
Posts: 1
Vehicle: 1999 Dodge Dakota
Trim Level: SLT
Color: Red
Engine: 1997-2003 - 3.9 L (238 cu in) Magnum V6, 175 hp (130 kW)
Rep Power: 0
Rep:10
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Question 3.9l performance mods?

Hello, My name is Cade and i have 1999 3.9l SLT Dakota, and I have a cai, 180 degree thermostat, and a freeflowing exhaust, and the next mod i would like to do is a single turbo! i would like to know what all i would need to have a reliable turbo! P.S.- im 16 and this is my daily driver
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  #14  
Old 08-30-2016, 03:08 PM
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CaffeineTripp CaffeineTripp is offline
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Join Date: Jun 2014
Location: Duluth, MN
Age: 34
Posts: 372
Vehicle: 1991 Dodge Dakota
Trim Level: Base
Color: Red
Engine: 1987-1991 - 3.9 L (238 cu in) LA V6, 125 hp (93 kW)
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Overall, it's better to have a spare engine that can be rebuilt to the specifications you want. You'll be in this project a lot of money, but it has been done successfully, though not by many people. It would be far easier to have the engine tuned by a reputable speed shop. Plan on going over budget by unforeseen circumstances. Plan on rebuilding the engine using good, high-quality parts. Use forged pistons. Have the camshaft reground for a turbo setup, install higher flow rate injectors so you won't max them out at 5 pounds of boost on a small turbo.

Building a turbocharged engine can be done for cheap, but then you have an unreliable engine with a lot of knock-off parts. The hardest part of a build is changing an engine into something it wasn't meant to be; a naturally aspirated engine needs a complete rebuild to be an effective forced induction engine. When adding a turbo, or supercharger, to an N/A engine you'll need to essentially re-engineer it; spark plugs, volumetric efficiency (machine work to heads, camshaft, intake manifold), exhaust system, fuel system, gaskets, ECU tuning, internals (pistons, bearings).

Another vehicle as your truck will be down sometime while working on it.
$3,000-$5,000 for the parts and other labor for manufacturing.

General Parts:
Turbocharger: 500
Custom intercooler piping: 500-750
Intercooler: 200
Custom exhaust downpipe-to-turbo and turbo-back: 200-500
Oil cooler and lines: 100
Turbo oil lines: 50
Turbo cooler lines (if applicable): 50
Oil pan tapped for oil line: 50
Larger injectors: 150-200
'Colder' spark plugs: 50
MegaSquirt ECU: 300
Cooler thermostat: 15
Camshaft Regrind: 150
Wideband O2 sensor: 200
Blow Off Valve: 200
External wastegate (eliminate boost creep, more stable to tune): 200
Tuning MegaSquirt ECU: 300+
Clutch: 300
Multi-Layer Steel headgaskets: 150
ARP head bolts: 200
Valve Springs: 400

General Maintenance on engine: 200-500

I'm not trying to tell you not to do it, I'm just trying to let you know what you'll be in for. Many car builders are never done on the vehicle, or they take years to complete, and that's just fine. If you want to build a turbo 239, by all means. Just be aware that there are only a few people who have traveled down the path with success. A turbo 6 would be a great build to see, and there are far too few out there.
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