Didn't the late great Carroll Shelby said, "horsepower sells cars, torque win races."

Besides that point, I am glad you created a thread on the swap, I am also at that point of starting it and this saves me the time to create my own thread.

 

I honestly had no idea there was a sensor in the distributor..learn something new everyday lol. As to switching the sensors was it just for the plugs or the sensors themselves? because i cannot find the right temp sensor for the 6 at any parts store and curious if its the same that advanced and all them carry the wrong one >.< and im guessing all the 318 sensors will cross to the 360 no issues?

But regarding an earlier question will the van harness work? or are the wires too short to reach everything or does it have to be a Dak harness?

A little off topic but has anyone done more gauges in gen 1's? or we stuck with the stock 6 cluster? Id like to add a few more that look stock or close to it if possible.

 

15 HP and 40 ft/lb of torque for FREE. Since he is installing a V-8 anyways, why not bolt in the best one out of the two.

According to http://www.fueleconomy.gov/feg/bymake/Dodge1994.shtml the 5.2 and the 5.9 get the same mileage.

I would assume the sensors would operate the same but with assumption being the mother of all F up's, just chang'em.

Are you talking about the one wire temp sensor for the gauge or the 2 wire sensor for the PCM?

I don't know about the Ram van harnesses. My truck came with a V-8 so I didn't have to worry about that. You must live in a crappy area for junk yards. The yards here have plenty of V-8 Dakota's and Rams. The one thing I had a had time was finding a 5.9 PCM. After I got it I ended up liking the 5.2 PCM better.

A.J.

 

Talking about the sensor itself, no parts store carries the right sensor itself, havnt checked the dealer yet. But i'm talking actual Other Gauges, trans pressure and temp, fuel pressure, higher number tach and maybe speedo, not sure bout speedo since mine ends at 125 and goes up in 5's not 10's(rare thing?), and possibly others, im a gauge head an like knowing what everything is doing.

And Yes, it is the slimmest of the slim for picking where im at. Hailing out of knoxville TN is a nice area, but garbage for any bone yards that a worthwhile...no offence to anyone but, we have ALOT of mexico-ians and most if not all the good yards have been vultured to almost nothing usefull. The yard i can get motors from is over an hour away from me and its still been picked pretty hard and i got no clue if any of the engines there are worth anything..as the yard guys even say 1 in 5 engines can be rebuilt the rest is trash.

As far as the pcm goes, with what all i am planning to do mod-wise would a stock run all of that well? Or should i get a performance pcm to handle it?

And as far as the harness goes i guess i can grab 2 complete ones and then extend wires as needed and hope to god it plugs in the same.

! other question i got is about throttle linkage, i know 1 of the faq links for a 95 swap to a 318 said the v8 throttle linkage was needed from the pedal to TB, he said he modified his 3.9 one with a die grinder? Not really sure why all that would be needed if so could someone clarify as to the specifics on that, too short, too long, something?

 

You still haven't answered my question, one wire or two wire temp sensor.


Depends, do you like spending the money on premium or regular fuel. The Mopar Performance computer requires premium.

I'm running a 5.2 computer with my 5.9. I upped the fuel pressure from the stock 40-45 psi to 60 psi to make up for the smaller engine computer with a bigger engine. My fuel trims are a tad rich but my wide band O2 says I'm right where I need to be with my air fuel ratio. I did 15.2 in the quarter mile with the above set up. I think that's pretty good since the '98 Dakota R/T did 15.4.

A.J.

 

You kept on asking about the wiring. The best way to do this swap is get a 92-95 5.2 or 93-95 5.9 with all the sensors injectors and PCM ect. This way all the electronics will plug directly into your stock Dakota harness. Since you have a V6 and your going to a V8 all you need is 2 extra injector wires. That is it!!! Keep it simple.

 

Ah sorry, 2 wire. But they say the part id for the 318, and its alot smaller than whats in there and the plug is different.

Is that known as flashing the computer? Or is that a straight up reprogram? Sorry just lack almost all knowledge of injection system stuff for this part >.<

 

From my understanding there is one coolant temperature sensor for the computer. Take a picture and post it.

No, I was referring to swapping computers. I don't think the '92-'95 computers are flashable except by maybe the dealer. I can pull the chip, socket the computer, DUPLICATE the chip (5.2 or 5.9 calibration), and then install the chip. These computers use the same chips as the late 80's/early 90's chrysler turbo cars and those computers can be modified. So I have the equipment to duplicate 5.2/5.9 calibrations just not modify the calibrations.

A.J.

 

Finally got some numbers crunched and got a new job, so the swap is now within only month or so out, had a few final questions regarding the swap since I have been able to find a good number of affordable obdII 5.9's in the area since those will work.

Fuel System - mine being a 93 i have the return line. Will the rails off a 318 intake work on a later 5.9 intake if its the same kegger style intake? And does the throttle body have to be year specific to the rest of the system, or will any V8TB work?

Transmission - I have the option of grabbing another 42rh or I can grab a 46rh from the bone yard. It will be shop rebuilt before it even bolts to the motor, would it be easier to just run the 42rh after a rebuild and beef-up? Or does it make a significant difference with 1st and 2nd gear to warrant the crazy search or purchase of a new shaft from tail-shaft to carrier bearing?

PCM - Any obdI unit from a 5.9 will work right? Or might I have a little trouble with the fuel return system if it isn't 92'-93'?

 

'92-'93 fuel rails will work on any year 5.2 or 5.9 kegger. I have a '92-'93 fuel rail on my '94. All V-8 throttle bodies are the same except for the cable hook ups and the sensors/plugs. To be safe, stick with your year V-8 throttle body to keep the cables correct. Depending on the year wiring harness you use, you can then swap sensors to match. You'll need to match fuel injectors to the PCM. If you run a '93 PCM you'll need '93 injectors. I forget what years they swap the PPH flow rates so to be safe keep the correct year PCM to the correct year injectors. I ran '98 injectors with my '94 PCM and it ran like poop.

If you go 5.9 you're going to need a 46RH. I doubt a 42RH will handle the torque. If you get an OBDII computer and harness it won't work with a 42RH/46RH. You'll need a 42RE/46RE.

It depends. If you have a return fuel system you're going to need a '93 5.9 PCM. If you have a returnless fuel system you're going to need a '94-'95 PCM. However, if you have a return fuel system you can run any PCM, but if you run a '94-'95 you just leave the vacuum line to the fuel pressure regulator capped. OR you can do what I do, run a 5.2 PCM with your 5.9 and just run more fuel pressure. I like the performance of the 5.2 PCM over the 5.9 PCM.

A.J.