Author Topic: 1980 Ramcharger cummins swap  (Read 563 times)

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Offline RamV8Charger

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1980 Ramcharger cummins swap
« on: March 20, 2017, 01:25:09 AM »
Longtime member, haven't been active in a long while tho. Figured I'd make a post about my latest en-devour, I picked up this 1980 Ramcharger about 7 years ago. It was used as a plow truck most of it's life and was pretty rough. grabbed it for $250. fixed it up over time and started driving it every now and then last year. mostly because the fuel mileage is absolutely terrible. The other day I picked up a very rough 1990 ctd donor truck. the plan is to swap the driveline into the ramcharger.

Looks like from other build threads the engine will basically drop into my 80's frame. so really the only thing I'm looking to figure out from the crowd is how to adapt the wiring of the 80 to the cummins, and the speedo cable.

 
1968 Dart GT road racer one of these days.
1966 Dodge Dart 4 door
1963 Belvedere 4dr
1981 D250 Crew  now on a w250 frame, 5.9 cummins nv4500 sometime.
1980 Ramcharger 360 auto, ctd auto conversion candidate
2004 Harley Davidson Road King
1998 Honda crv daily

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    Offline ToxicDoc

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    Re: 1980 Ramcharger cummins swap
    « Reply #1 on: March 20, 2017, 01:35:56 AM »
    Speedo cable should bolt right on. Wiring should not be too hard. You'll have to decide if you're going to swap in the Cummins-version computer or a manual version of the grid heater.
    '85 W150 SB, 408 stroker, Magnum manifolds, Performer RPM, 670 Truck Avenger, HEI ignition, Auburn LSD 9.25 and '82 D44 (non-CAD) with 3.55/3.54,  NV4500/NP241

    Offline dodge82273

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    Re: 1980 Ramcharger cummins swap
    « Reply #2 on: March 20, 2017, 01:55:30 AM »
    yep key power on / off for fuel shut off , alt should be either a 1 wire conversion or , it will work with the voltage reg IN your truck .  An old fashion starter button and a solenoid with a diode ( No voltage spike into the trigger lead from coil collapse )  operates the glow plugs . 
    78 to 93 parts trucks
    91 w250 318 518 44/60 single 9 foot driveway plow locked
    87w150 44/corp727 kandy w/ ghost bats/summer
    86-D/W100 44/corp/318mag/carb/4500/aka shit box/winter
    93w150short/44/corp/360/le/mag "caddie"
    93w250LB51844/60posi 318"New Truck"

    Offline RamV8Charger

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    Re: 1980 Ramcharger cummins swap
    « Reply #3 on: March 20, 2017, 02:01:37 AM »
    I'm actually kind of on the fence about the grid heater. I was thinking about eliminating it completely. from my past experience with a 92 cummins I had the grid heater actually hurt me more times then it helped. had to have it plugged in all winter anyways so I was thinking about running just a good oil pan heater so the oil wouldn't be so molasses in starting
    1968 Dart GT road racer one of these days.
    1966 Dodge Dart 4 door
    1963 Belvedere 4dr
    1981 D250 Crew  now on a w250 frame, 5.9 cummins nv4500 sometime.
    1980 Ramcharger 360 auto, ctd auto conversion candidate
    2004 Harley Davidson Road King
    1998 Honda crv daily

    Offline dodge82273

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    Re: 1980 Ramcharger cummins swap
    « Reply #4 on: March 20, 2017, 02:08:42 AM »
    people replace the solenoid with a standard one and the spike frys their computer .... eventually ... how do you plug in say at work ? ... but that makes it simple er   
    78 to 93 parts trucks
    91 w250 318 518 44/60 single 9 foot driveway plow locked
    87w150 44/corp727 kandy w/ ghost bats/summer
    86-D/W100 44/corp/318mag/carb/4500/aka shit box/winter
    93w150short/44/corp/360/le/mag "caddie"
    93w250LB51844/60posi 318"New Truck"

    Offline RamV8Charger

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    Re: 1980 Ramcharger cummins swap
    « Reply #5 on: March 20, 2017, 02:28:18 AM »
    I have been fortunate for the last few years to have a plug in at work but that is a good point. could do an esbar too this fall i go to school to be a heavy duty mechanic and they dont have plug ins
    1968 Dart GT road racer one of these days.
    1966 Dodge Dart 4 door
    1963 Belvedere 4dr
    1981 D250 Crew  now on a w250 frame, 5.9 cummins nv4500 sometime.
    1980 Ramcharger 360 auto, ctd auto conversion candidate
    2004 Harley Davidson Road King
    1998 Honda crv daily

    Offline RXT

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    Re: 1980 Ramcharger cummins swap
    « Reply #6 on: March 20, 2017, 05:18:42 PM »
    Looks like from other build threads the engine will basically drop into my 80's frame. so really the only thing I'm looking to figure out from the crowd is how to adapt the wiring of the 80 to the cummins, and the speedo cable.

    Just grab the entire harness, steering column and everything attached to the dash and swap it over. Easy peasy and all of it will look like the factory built it that way when you're done.

    Another option is to not worry about it. The engine runs on just one wire.

    Speedo cable should bolt right on. Wiring should not be too hard. You'll have to decide if you're going to swap in the Cummins-version computer or a manual version of the grid heater.

    The main purpose of the Cummins computer is for cruise control. If the Op wants cruise, it will need to be swapped in, but otherwise, the engine doesn't require a computer at all to run

    yep key power on / off for fuel shut off , alt should be either a 1 wire conversion or , it will work with the voltage reg IN your truck .  An old fashion starter button and a solenoid with a diode ( No voltage spike into the trigger lead from coil collapse )  operates the glow plugs .

    There are no glow plugs in a Cummins. There is the grid heater (aka toaster) and that is only required on very cold days. During summer months, the grid heater isn't needed and is just there for the ride.

    Ed


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    Offline dodge82273

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    Re: 1980 Ramcharger cummins swap
    « Reply #7 on: March 21, 2017, 02:25:07 AM »
     yes ,I stand  corrected .NO glow plugs ,  heated air intake ,  resistor wires  that glow , like a toaster . same high electric load as glow plugs , uses a solenoid to switch it , that solenoid needs to have a suppressor , so it don't cause an electrical spike back into the power wire that turns the solenoid "ON" .  some say "suppressed" right on them ...   5 or 10 dollars more than the cheaper ford starter solenoid type , the trigger wire of which disconnects at the key when you let off cranking , so suppression is NOT required there . I would use the sending units ( oil pressure /water temp ) that match the gauges being used .
    « Last Edit: March 21, 2017, 03:36:46 AM by dodge82273 »
    78 to 93 parts trucks
    91 w250 318 518 44/60 single 9 foot driveway plow locked
    87w150 44/corp727 kandy w/ ghost bats/summer
    86-D/W100 44/corp/318mag/carb/4500/aka shit box/winter
    93w150short/44/corp/360/le/mag "caddie"
    93w250LB51844/60posi 318"New Truck"

    Offline RamV8Charger

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    Re: 1980 Ramcharger cummins swap
    « Reply #8 on: March 21, 2017, 02:25:31 PM »
    Another option is to not worry about it. The engine runs on just one wire.

    That's basically my plan. I'd like my 80 to look pretty close to factory.
    1968 Dart GT road racer one of these days.
    1966 Dodge Dart 4 door
    1963 Belvedere 4dr
    1981 D250 Crew  now on a w250 frame, 5.9 cummins nv4500 sometime.
    1980 Ramcharger 360 auto, ctd auto conversion candidate
    2004 Harley Davidson Road King
    1998 Honda crv daily

    Offline J10Mike

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    Re: 1980 Ramcharger cummins swap
    « Reply #9 on: March 23, 2017, 11:12:21 AM »
    Due to the increased amperage of that CTD alternator at 120 amps, you'll also need to beef up your under hood wiring and bypass the amp gauge, bulkhead connector, and dash as recommended at http://www.madelectrical.com/electricaltech/amp-gauges.shtml

    Especially Diagram B on page 2.

    That's what I did prior to doing my CTD conversion. I'm running a 140 amp alternator.
    www.j10mike.com

    1977 Ramcharger, CTD 4bt/46rh/NP241, 6 inch lift, BFG M/T 35s, Front D60 w/Detroit Truetrac. Rear HD60 w/Detroit Locker.

    2000 Dodge Ram 2500 QC, CTD, 4x4...Juiced.

    2013 Dodge Charger R/T - DD

    Former Rig: 1982 Jeep J10 Sportside.

    Offline RamV8Charger

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    Re: 1980 Ramcharger cummins swap
    « Reply #10 on: March 23, 2017, 02:20:57 PM »
    Due to the increased amperage of that CTD alternator at 120 amps, you'll also need to beef up your under hood wiring and bypass the amp gauge, bulkhead connector, and dash as recommended at http://www.madelectrical.com/electricaltech/amp-gauges.shtml

    Especially Diagram B on page 2.

    That's what I did prior to doing my CTD conversion. I'm running a 140 amp alternator.

    Which wires required beefing up?dumb question but I'd rather ask then burn up my truck
    1968 Dart GT road racer one of these days.
    1966 Dodge Dart 4 door
    1963 Belvedere 4dr
    1981 D250 Crew  now on a w250 frame, 5.9 cummins nv4500 sometime.
    1980 Ramcharger 360 auto, ctd auto conversion candidate
    2004 Harley Davidson Road King
    1998 Honda crv daily

    Offline J10Mike

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    Re: 1980 Ramcharger cummins swap
    « Reply #11 on: March 23, 2017, 02:48:21 PM »
    In my case, it was the bulkhead connector that started smoking a few months after I bought the RC. That was with the factory alternator. I believe 78 amps.

    I found madelectrical's website and bypassed the burned bulkhead connector with heavier gauge wire the next weekend. I bypassed both the bulkhead connector and the amp gauge the same afternoon.

    Later, as I was preparing to do the CTD conversion, I went ahead and did the dash wiring bypass shown in Diagram B (attached). I ran heavier gauge wire from the alternator to the starter relay, starter relay to the battery. With this bypass, the high amps are NOT traveling through your dash circuits first before getting to the battery.
    So far, so good. It's worked well since.
    www.j10mike.com

    1977 Ramcharger, CTD 4bt/46rh/NP241, 6 inch lift, BFG M/T 35s, Front D60 w/Detroit Truetrac. Rear HD60 w/Detroit Locker.

    2000 Dodge Ram 2500 QC, CTD, 4x4...Juiced.

    2013 Dodge Charger R/T - DD

    Former Rig: 1982 Jeep J10 Sportside.

    Offline RamV8Charger

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    Re: 1980 Ramcharger cummins swap
    « Reply #12 on: May 19, 2017, 03:30:22 AM »
    So I've finally after almost 2 months made some progress on the dodge project. I gathered parts for the last month to rebuild the brakes and suspension on the ramcharger and for the new parts. Picked up some newer looking springs  from the auto wrecker. paid 150 bucks for a pair of 6 pack leafs, which I think I'm going to yank out a leaf or two from the pack because It gave me 8" of extra height over the worn out factory 3 leaf pack. so I'm guessing it's gained me at least 6" of lift. I'm sure the cummins extra weight over the small block that came stock will drop it down likely an inch but I'd like to stick around 4" of lift so I think dropping a couple of leaf's from the pack will fix that.
    1968 Dart GT road racer one of these days.
    1966 Dodge Dart 4 door
    1963 Belvedere 4dr
    1981 D250 Crew  now on a w250 frame, 5.9 cummins nv4500 sometime.
    1980 Ramcharger 360 auto, ctd auto conversion candidate
    2004 Harley Davidson Road King
    1998 Honda crv daily

    Offline TXPower

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    1980 Ramcharger cummins swap
    « Reply #13 on: May 22, 2017, 02:39:54 PM »
    Following.  Looking for a RC right now, think I have a line on a 75 model.  Plan to CTD swap what I buy.  Reading all I can right now to get ready.  Keep up the good work and please post what you learn and as many pics as possible.

    Thanks,

    TXPower