Cool man. Doesn't sound like you were worried about cost during this swap lol.
Everything looks real good though!
Are you planning in beefin up the engine?
But if you think about it if you ditch the efi get an intake carb and msd ignition controller you'll spend that much at least and the efi will be super nice for regular driving gas mileage cold starts ect.
I will do whatever needs to be done to it at home and I'll be running a custom tune anyway.
Thats a lot of wiring to do! There is no way I could do all the myself. I'm just a wrench head...
In fact, I didn't get all the wiring today. There are two wires I need to connect. One goes to the brakes system. It needs power when you hit the barkes to unlock the torque convertor. I have no idea where to attch it to?
I also need to connect a wire to the transmission harness. It is somewhat of a nuetral saftery switch? For reverse? I don't know where to to connect that wire at?
I tried to crank the motor, but nothing... Dash lights came on, CEL come on too (No O2 sensors yet). I think the two wires I haven't hooked up keep it from turing the motor. I know in my Chevy truck, I have to press the brakes before it will crank over. I'm thinking same problem here?
I guess I will be calling Novak tomorrow. Lets see if that expertise I paid for gets my Jeep fired up!
Hmm...well I'm pretty much taking Everything out of the engine bay of a fox body mustang. From the engine to the PCM. That means both PDC boxes and engine harness. So essentially I will be tricking the PCM into thinking its powering a fox body mustang. It's not automatic so I have less to deal with electronically.
OP do you have a wirin schematic from the donor vehicle?
I called Novak and Eric told me what I needed to do. I had a couple wires wrong, and there seems to be some extra plugs for emissions I may or may not need. Confusing and frustrating, but I knew the wiring was going to be the hardest part.
The brand new fuel pump I put in had a bad plug, chinese POS! So after dropping the tank to splice into the wires, its running!!
It sounds bad ass with the open headers! I am going to button everything up tomorrow night and take it for a test drive!
Im gald to see I'm not the only one that had 5 grand invested, and still have details to work out.
Where are you at on your build?
I keep telling myself it will all be worth it. My friends have 15-$20k in their Rhinos. I will have around $10k, 300+ HP, a hard top, and air conditioning! Stupid rhinos!
The wiring has cause me the most frustration. I spent the last 3 nights trying to make the connections. PIA! Finally got it wired enough to drive it safely. I will pulling it out of the garage tonight for the first time in over 2 months. I can't wait!!!
Exhaust put on tomorrow. I hope to get a little break in done Friday night. I have an annual Jeep trip Saturday I want to make!
My son is back on the road with it. we still need to work out some bugs. loooking at diffrent options on the axles, tires etc. Trying to let my wallet catch up. carbed 350 ax15 np231 looking at changing the gears from 410 to some where around 355. Took about 2 and 1/2 months, night and day.
I drove the beast tonight!!! All the money and hard work was worth it!!!
Everything seems to be working fine...so far.
I didn't get above 20mph, the headers are noisy as hell! I can alleady tell, this thing is a BEAST. Its going to be a challenge to keep my foot out of it! I will be driving it tomorrow to work to get an exhaust put on it.
what kind of headers are u running? I tried 3/4's they wouldnt clear the clutch arm. after soome trial and error I ended up running center drop manifolds off of a 70s model suburban to accomodate the guy that does my exhaust.
I don't know if I want to risk keepin the ax15 but it's between that a4 speed or auto 700r4 and I really want a 5 speed
I went with the ax 15, because many sites were impressed the way it holds up behind the sbc. I didn't have much time to plan this out. My 20 year works part time and goes to school full time. He decided to submerge his dying 2.5 liter in a local creek bed just before last christmas. Time was of the essence to get him back on the road. Just running down the high way I haven't noticed any probs. He and I joke about not needing granny gear at the stop signs located on steep hills. Thats not something his brothers 4.0 can do.
I wanted to post some pics and pointers on mounting the ECM. I had seen a couple different pics on the net, and decided to mount it on the backside of the fender. It seems like the safest place to put it...
I had to make some mounts using 1 1/2" angle iron. I also had to drill the bottom of the ECM. I slid some rubber washers in between the two and bolted them up.
Then I drilled the fenders and mounted the ECM to that. I used some shock bushings to add a little cushion to the set up. Turned out pretty good.
I HAVE to get get the AC working. It is SO hot driving this thing. already 100+ degrees in Phx. I guess I will be driving the Duramax again...
Yes, it does make the cab hotter. My girlfriend was complaining her feet were HOT. The exhaust ties together under the passenger side and is making it get very hot.
It doesn't help having a black hard top on either. Its like having a heat magnifier about 6 inches from your head!
I have some insulation on its way. I think I can block out most of the heat with it. I plan on covering the entire floor and firewall with it. I will probably stick some to the roof also!
Damn, this Jeep runs so smooth!!! Hot or not, I LOVE it!!!
Great job on swap,I just changed mine from a 2.5 to the 4.0 and I fell in love all over again.I will one day put a SBC in mine when its not a DD.or it blows up whatever comes first.mine will get up and go I coundnt amaigine what it would do with that 5.3 in there.nice job
93 yj 2.5 swap to 4.0,ax15. 4 inch RC lift with 33s.410 gears