Originally Posted by Turbo88XJ

I did my own custom turbo set up on my Cherokee, I used a T3 T4 60 trim turbo. I am currently running 10 pounds of boost. For fuel system I installed injectors from a 2004 Mustang cobra. The 2004 cobra injectors are actually different injectors than your stock wiring harness so you will have to rewire the stock wire harness to the connectors for the cobra. The cover uses a injector that is a Ev6 style is why you have to rewire it. For reference, timing is not adjustable through the distributor on a Jeep Cherokee 4.0. In order to adjust timing you have to remove the crankshaft sensor and drill the holes larger in the bracket to be able to adjust timing. The reason why you have to adjust timing this Way is because the computer controls the timing on a Jeep Cherokee 4.0 or even any Jeep 4.0 motor. Down the road I do plan install a standalone computer system like an AEM or Fast system so I can tune it more. I did also disconnect my stock O2 sensor that way it leaves it open loop so the computer doesn't try to lean about so much. I also am planning to change out the fuel system and use a different pump and lines so that I can get an adjustable fuel pressure regulator due to my Jeep being renix so I've been able to find an adjustable fuel pressure regulator for it. Also since my jeep is a Renix I had to build a custom elbow with mounting bracket for the stock throttlebody because mine doesn't have the lip to build a put the hose on to. Here is a couple pics of my set up