I am turbo charging my 98 dakota 3.9 liter and i was wondering where i should connect my oil and coolant lines.

 

probly tie into the oil and coolant lines

after the water pump and before the thermostat, the return could go to the radiator maybe

and not sure even how you'd tie into the oil since theres no external lines, maybe tap into where the oil filter comes out somehow, then return it right to the pan


somebody else could probly give better insight

 

Oil Filter relocator, and tap into it's lines?

 

Oil for turbos is usually taken from a "TEE" fitting at the oil pressure sender port.

 

wouldnt there be lack of lubrication or would there be enough oil flow for one there?

 

makes sense, there should be plenty of oil flow from there unless you're wanting a waay to big turbo,

what turbo you looking to run?
i know you can get a holset off a forklift probly pretty cheap, buddy of mine has one i think,
holset is a stock cummins turbo, and many forklifts use a version of the 4bt

 

i was goin to run a smaller one because i would think if i ran a stock cummins one i would have really bad turbo lag wouldnt i?
also where do i hook up the vacum lines up to?

 

A stock Cummins Holset is a little on the small side for a small black V8 but I've got one I'm going to use on mine. Depending on the turbine housing size it should be just fine for a V6.

It will get plenty of oil, often times people have to run restrictors because the turbo gets too much oil.

 

the cummins 4bt is a 3.7L motor,
that turbo would fit well on your 3.9

 

The 4BT is 3.9. Remember, diesels spin at half of what a gas engine does and the exhaust is cooler.