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  #1  
Old 01-08-2012, 09:41 PM
catfishr3dn3ck catfishr3dn3ck is offline
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Smile performance parts help 3.9l

hi i have a 3.9l engine and im rebuilding the engine i want a cam that will make it rumble and give a good sound but everywhere i looked i cant find a cam to put in my truck and what else should i do to get more power out of the engine if anyone can help me that would be grate
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Old 01-08-2012, 10:11 PM
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Sorry not sure on this one, if the members here can't get you an answer try our Dakota specific forum.
http://www.dakotaforumz.com/
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Old 01-09-2012, 12:42 AM
catfishr3dn3ck catfishr3dn3ck is offline
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thanks i will try their and see what they say
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Old 01-09-2012, 11:14 PM
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Hughes Engines can set you up.
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Old 02-24-2015, 09:55 PM
Scootermule Scootermule is offline
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I am doing a 3.9L rebuild and from what I understand the major changes one can make are porting the heads (see your machine shop) and opening up the exhaust - ie headers. More performance means more air and fuel in faster and more exhaust out faster. Hence look into having the heads done to get air in/out faster. Headers open up the exhaust, so that should help. I am dubious on the cam thing. ECU mod worked on my Saab 9-3, so that too could be an option for the fuel injection models. I am not sure if a modified air filter that everyone is selling has much impact... Making sure your engine is very balanced internally is always a good idea- ie rods and pistons weight.
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Old 02-25-2015, 11:39 AM
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You can pretty much do anything to a 3.9 that you can do to a 5.2/5.9. As stated, Hughes has a bunch of stuff. They have cams and TB's, your problem will be tuning. I think Mopar made a high perf ECU for the 3.9 back in the day, but I don't know if you'd be able to find one now. Other option would be a standalone unit.
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