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Finally! 5.9L

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Old Sep 6, 2012 | 10:41 AM
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keilkravec's Avatar
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Default Finally! 5.9L

As of last night I have finally sealed the deal on procuring my 5.9L for my truck. Getting a 32k motor that runs perfect from a durango parts truck..including the Torque convertor! From what i know its an 01'-03' motor.

What I know - will need to switch the sensors back to 93 style to fit my plugs and harness, will need the matching year pcm for my truck as a 5.9. will need the V8 fuel rails, and my question regards the TB.

From what I've read here so far the TB will need to be swapped to match my cables. If i can find a year matching at the pull yard and clean it out, will I be able to direct swap it and it match up to my V6 throttle cable? I cant find a V8 cable to save my life at any of the yards around here. Thoughts?

-Also read up a few places here about fuel pressure not being right and to use the regulator from an Intrepid? Can anyone give more specific details? I will be running a year matching pcm that matches my fuel return system, so just need to know whats what before diving in.
 

Last edited by keilkravec; Sep 6, 2012 at 10:57 AM.
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Old Sep 6, 2012 | 08:25 PM
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On my 5.2 when I bought my fastman 50mm TB the linkage was for a newer model. I used a angle grinder and ground down the metal that was mushroomed out over the plastic and carefully used a punch to drive it off. The fastman TB had a hole with machine screw taped into the new cross shaft.that may be an option is to get a fastman 52mm and get it with the bracket you need.
 
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Old Sep 6, 2012 | 09:37 PM
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First of all I suggest to use a 94-95 5.9 V8 Ram Mopar High Performance PCM instead of a stock style one.

The fuel rail will need to be from a 92-93 5.2 or a 93 5.9 V8 Ram/Dakota/Ram Van.

For the fuel pressure regulator, the stock 5.2 is the same a 5.9 in 92-93. If you run a 93 5.9 PCM and injectors the stock style fuel regulator is just fine. If you use the Mopar HP PCM with newer/more higher flow injectors (then the early years) then you will need to use a higher regulator like for a 94 Dodge Intrepid 3.3 V6.

As for the throttle body try to get a 92-93? V8 throttle body Ebay or www.thefastman.com performance throttle body they will get you what ever year style of hookups you need.

Also don't forget you will need 2 more injector wires and PCM pins to hook it up to your stock V6 wiring harness. Also the newer years injectors use a different plug which you will have to find to swap your plugs over to.
 
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Old Sep 7, 2012 | 01:11 AM
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Alright thanks for the info.

As far as the pcm goes I'm ordering a factory replacement unit online for around $200, mainly because I cannot afford to run premium all the time and have had to deal with pinging for 1 too many years now. It's annoying as hell anymore.

Going to get some older style injectors from the pull yard and have them refreshed so they fit my plugs, also turns out my pull yard has gotten 12..yes 12! Gen 1 Daks since I was last there. Majority of them 93-95. so looks like I may be able to get a full V8 harness.

As far as the throttle body goes my thought was to grab just a stock V8TB and try to get it to work with the V6 throttle cable incase I couldn't get a V8 cable. Hence my question regarding it's compatability.

As far as the fuel regulator I would only need to bump the pressure up to 60psi manually or by Intrepid part if it's using the newer injectors?

Transmission - For sake of time limit on the swap getting done and parts availability, I will be rebuilding a 42rh from the boneyard to handle the power of the 5.9. I noticed in another thread that the trans would have to be re-shafted or something to be able to mate up to a newer Torque Convertor..any truth to that? Since the trans will be a 93-95 era, the tc will be 01'-03'.

Rails will be no problem getting. pull yard has 17 ram vans from 91-99. all V8's with complete top end assemblies.

As far as a wiring harness goes, are those specific between our trucks and the vans and other dodge full-sizes? Or would a cargo van harness work in a gen1 Dak? Curious to it as the yard has so many vans with full harnesses, almost willing to get more than one if i have to extend wires depending on what they want for them.

edit - Oil Pan! I have read that durango oil pans will work in our trucks as long as they are both 2wd or 4x4. Truth? Read somewhere they can work but need to be notched?
 

Last edited by keilkravec; Sep 7, 2012 at 01:17 AM.
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Old Sep 7, 2012 | 01:56 AM
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If you get a '93 V-8 throttle body your V-6 cables ought to work.

If you ordered a '93 5.9 PCM then you're going to want to get injectors from a '93. They changed flow rates at certain points for different years. If you get the correct flow rates for your computer, you're not going to have to run the higher pressure Intrepid regulator. I took the P/N off of my '94 injectors (from my truck) and the P/N from the injectors (from my '98 donor engine) and did an internet search and found out the '94's flowed more than the '98's and that's why my truck ran like crap with the '94 computer.

A.J.
 
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Old Sep 7, 2012 | 02:14 AM
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AAhhhh ok that makes sense. Thanks!
 
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Old Sep 7, 2012 | 01:24 PM
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Snowballing off of original post. I have also have a dakota I am looking to swap to a 360. Details of truck. It is a 1994 Dakota, STL longbed currently I have a 3.9L V6 stock for the most part except headers and edelbrock air cleaner. I have been shopping around and I found a good 360 from a wrecked 94 ram, with 60K miles, including tranny. I also asked for the PCM and for some reason (not complaining) they will throw in the PCM for no charge. I however did not ask for the harness, because of wiring in the injectors, seems simple enough. Just worried about the diagram part which Crazy4x4 I have seen has posted diagrams in FAQ's in previous threads. Questions... PCM do I have to have this flashed even though it is coming from the same year model etc. Could I get by without it being flashed?? Far as the tranny and engine, should I get different mounting hardware?? Fan shroud.. would I be safe with just cutting my current fan shroud to make it work?? (I have already had to cut the fan shroud from my body lift) Any guidance would be amazing. I am looking to spend the least amount on this swap. Other goodies and mods can come later.. Just trying to get a running project now. I know fuel rails are fresh in this forum now so i will ask.. Do I need to get new fuel rails on my engine even though they are the same year model, or does that not even make a bit of difference?
 
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Old Sep 8, 2012 | 01:03 PM
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The Hi perf PCM is a PITA on the street with stock gears and coverter
It will ping with even premium gas
Strip only or very HP
not if you live in hills or are towing or any HD use
 
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Old Sep 8, 2012 | 04:31 PM
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I have the mopar performance pcm in my truck along with other mods listed. Mine does very well with no pinging. I never tow and is more a street/strip truck. 93 octane gas and seafoam this last tank.
 
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Old Sep 8, 2012 | 06:02 PM
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Originally Posted by wyrmrider
The Hi perf PCM is a PITA on the street with stock gears and coverter
It will ping with even premium gas
Strip only or very HP
not if you live in hills or are towing or any HD use
Not for me too. Even on 86 gas (only the times the wallet must be squeezed). It's great on the street.

You might have another problem like the notorious intake plenum.
 
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