i am looking to change my 18.5 turbo to a 12 or 14 wastegated what do you have to do to get them in like where do you hook the vacum line to and there is somthing where it conects to down pipe also one more question i was told that my motor is loud because of the valve ajustment can this be true if so how else would not haveing my valves ajusted hurt the motorlike power,fuel,noise or what just trying to learn where would i find out how to ajust valves or is it just better to take it somewhere thanks keith

 

To put a wastegated housing on you have to move the downpipe back about 1.5". The line from the wastegate can goes to a source of boost. On my truck I put a tee in the port where my boost gauge is attached and ran a piece of steel tube under the engine to the turbo. If your truck is a 5 speed you should consider swapping in a whole late model turbo or upgrading the compressor. The stock turbo will surge at low RPM under load. The automatics don't have this problem because the torque converter won't load the engine hard at low RPM.

Loose valve clearnce can make the engine louder, and setting them back to factory spec or slightly tighter (0.009/0.018) will improve power. You will probably notice that the engine runs smoother once they are all set to the same clearance.

Definitely adjust the valves yourself, it's not hard at all.

http://dodgeram.org/tech/dsl/valve_adj/12_valve.html

Don't worry about the special tools, as long as you have normal hand tools and a set of feeler gauges you will do just fine.

 

thanks so much for that info it helps me on every question

 

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