Author Topic: 70 Challenger RT - EFI 6 Pack Conversion  (Read 66204 times)

Offline 70chall440

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Re: 70 Challenger RT - EFI 6 Pack Conversion
« Reply #240 on: December 20, 2016 - 03:51:05 PM »
as in what state? I am in Washington State.
Current Mopar
70 Challenger RT 440-6 EFI, 73 Cuda 416-6 EFI
05 Hemi Durango, 01 Ram 4x4, 14 Ram 2500 4X4, 10 PCP Challenger 6 spd RT, 01 Viper GTS ACR, 52 B3B w/330 Desoto Hemi, 70 Hemi RR (under const)
Past Mopars
9 x Challengers. AAR Cuda, 4 RR, 2 GTX, 4 Chargers, etc... (too many to list)




Offline marc70challenger

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Re: 70 Challenger RT - EFI 6 Pack Conversion
« Reply #241 on: December 20, 2016 - 04:31:05 PM »
as in what state? I am in Washington State.

Ah ... of course ... other side of country.  Damn.   We're in VA.  Little to far to meet up ..
1970 Challenger 340 Performance Package
1965 Barracuda - "The Pumpkin"  http://www.cuda-challenger.com/cc/index.php?topic=116471.0

Offline 70chall440

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Re: 70 Challenger RT - EFI 6 Pack Conversion
« Reply #242 on: December 21, 2016 - 12:15:46 AM »
Ah ... of course ... other side of country.  Damn.   We're in VA.  Little to far to meet up ..

Yea that would be a pretty good drive, although I have done it a number of times over the years going from WA to NC.
Current Mopar
70 Challenger RT 440-6 EFI, 73 Cuda 416-6 EFI
05 Hemi Durango, 01 Ram 4x4, 14 Ram 2500 4X4, 10 PCP Challenger 6 spd RT, 01 Viper GTS ACR, 52 B3B w/330 Desoto Hemi, 70 Hemi RR (under const)
Past Mopars
9 x Challengers. AAR Cuda, 4 RR, 2 GTX, 4 Chargers, etc... (too many to list)

Offline marc70challenger

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Re: 70 Challenger RT - EFI 6 Pack Conversion
« Reply #243 on: December 21, 2016 - 12:36:20 AM »
Yea that would be a pretty good drive, although I have done it a number of times over the years going from WA to NC.

 :2thumbs:
1970 Challenger 340 Performance Package
1965 Barracuda - "The Pumpkin"  http://www.cuda-challenger.com/cc/index.php?topic=116471.0

Offline 70chall440

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Re: 70 Challenger RT - EFI 6 Pack Conversion
« Reply #244 on: December 21, 2016 - 11:51:44 AM »
I received the new bulk head connector for the engine harness and installed it. I eliminated the Amp gauge lead altogether as I do not believe it has a function any longer and having another "hot" wire in the mix for no reason doesn't make sense.

Unfortunately, this has not solved my problem, I am still not getting power to the heavy dark blue wire (#23) which is now my feed line for the MSD and ECU. I think this wire receives power from the ignition switch which has it own connector which is now suspect.

I will check this connector next, however the temps have dropped again so it might be awhile, plus I have to pull the seat out to work under there if it turns out to be that connector.

Here are some pictures for those who are interested. Of note is the gasket inside the connector which I could not reuse and does not come with the new one. I had to make a tool out of an old screw driver to punch the slots for the connectors to come through and then a razor blade to remove the displaced material on the back. I only replaced one terminal as the others were fine, just needed cleaning. The terminal I replaced was/is on the dark blue wire which is my problem child at the moment. I crimped and soldered it to ensure good connection and long life. Also, I am using some silver laden dielectric grease which promotes contact and reduces corrosion. It is a pain to apply, which I did to the female connectors. You have to wipe off any excess as it conducts electricity.
Current Mopar
70 Challenger RT 440-6 EFI, 73 Cuda 416-6 EFI
05 Hemi Durango, 01 Ram 4x4, 14 Ram 2500 4X4, 10 PCP Challenger 6 spd RT, 01 Viper GTS ACR, 52 B3B w/330 Desoto Hemi, 70 Hemi RR (under const)
Past Mopars
9 x Challengers. AAR Cuda, 4 RR, 2 GTX, 4 Chargers, etc... (too many to list)

Offline 70chall440

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Re: 70 Challenger RT - EFI 6 Pack Conversion
« Reply #245 on: December 28, 2016 - 10:20:50 PM »
As I suspected, the connection from the steering column to the main harness was perished and the root of my power problems. Therefore I finally got under there today and repaired it using 2 weather pack connectors. After testing, all works, car starts and runs. Now I have to reinstall the drivers seat and steering wheel, then back to tuning.

For those interested; in the first picture there are two tubes and the main harness connector (it isn't from my Challenger, it from my Cuda). The pins inside there (male as seen in the 2nd picture) can be removed by making a simple tool using 3/16 brake line. There are 2 pieces because the long one is drilled out for the 12 and 10 gauge wires which have bigger pins whereas the smaller tube is undrilled. You simply push the tube over the pin which will collapse the locking tabs and allow the pin to pop out.
Current Mopar
70 Challenger RT 440-6 EFI, 73 Cuda 416-6 EFI
05 Hemi Durango, 01 Ram 4x4, 14 Ram 2500 4X4, 10 PCP Challenger 6 spd RT, 01 Viper GTS ACR, 52 B3B w/330 Desoto Hemi, 70 Hemi RR (under const)
Past Mopars
9 x Challengers. AAR Cuda, 4 RR, 2 GTX, 4 Chargers, etc... (too many to list)

Offline marc70challenger

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Re: 70 Challenger RT - EFI 6 Pack Conversion
« Reply #246 on: December 30, 2016 - 08:25:53 PM »
Did you take seat out so you could get up under in there? 

1970 Challenger 340 Performance Package
1965 Barracuda - "The Pumpkin"  http://www.cuda-challenger.com/cc/index.php?topic=116471.0

Offline 70chall440

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Re: 70 Challenger RT - EFI 6 Pack Conversion
« Reply #247 on: December 30, 2016 - 10:03:21 PM »
yes, as well as the steering wheel. Just makes it much easier.
Current Mopar
70 Challenger RT 440-6 EFI, 73 Cuda 416-6 EFI
05 Hemi Durango, 01 Ram 4x4, 14 Ram 2500 4X4, 10 PCP Challenger 6 spd RT, 01 Viper GTS ACR, 52 B3B w/330 Desoto Hemi, 70 Hemi RR (under const)
Past Mopars
9 x Challengers. AAR Cuda, 4 RR, 2 GTX, 4 Chargers, etc... (too many to list)

Offline marc70challenger

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Re: 70 Challenger RT - EFI 6 Pack Conversion
« Reply #248 on: December 31, 2016 - 01:14:36 AM »
yes, as well as the steering wheel. Just makes it much easier.

Ya. I was being lazy the other day and wedge myself up under drivers side. And got stuck. Upside down. All I thought was my wife's going to find my dead body here. Lol. Next time seats coming out.  :smilielol:

Your builds coming along.  :2thumbs:
1970 Challenger 340 Performance Package
1965 Barracuda - "The Pumpkin"  http://www.cuda-challenger.com/cc/index.php?topic=116471.0

Offline dodj

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Re: 70 Challenger RT - EFI 6 Pack Conversion
« Reply #249 on: December 31, 2016 - 07:50:41 AM »
I would be very careful using conductive grease rather than dielectric grease. The quality of the connection is in the metal to metal contact between connectors. The grease is only for sealing out contaminants/water so the connection doesn't degrade as fast over time. Not for improving a poor connection. If the conductive grease you are using is actually a good conductor, I would be concerned about the grease 'flowing' between blade connectors and causing a short. Just my  :2cents:
Scott
1973 Challenger  440 4 spd 
2007.5 3500 6.7 Cummins Diesel, Anarchy tuned.
Good friends don't let friends do stupid things. ........alone.

Offline 70chall440

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Re: 70 Challenger RT - EFI 6 Pack Conversion
« Reply #250 on: December 31, 2016 - 01:39:10 PM »
Ya. I was being lazy the other day and wedge myself up under drivers side. And got stuck. Upside down. All I thought was my wife's going to find my dead body here. Lol. Next time seats coming out.  :smilielol:

Your builds coming along.  :2thumbs:

I have that T shirt many times over which is why the seat comes out now.... LOL
Current Mopar
70 Challenger RT 440-6 EFI, 73 Cuda 416-6 EFI
05 Hemi Durango, 01 Ram 4x4, 14 Ram 2500 4X4, 10 PCP Challenger 6 spd RT, 01 Viper GTS ACR, 52 B3B w/330 Desoto Hemi, 70 Hemi RR (under const)
Past Mopars
9 x Challengers. AAR Cuda, 4 RR, 2 GTX, 4 Chargers, etc... (too many to list)

Offline 70chall440

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Re: 70 Challenger RT - EFI 6 Pack Conversion
« Reply #251 on: December 31, 2016 - 01:54:53 PM »
I would be very careful using conductive grease rather than dielectric grease. The quality of the connection is in the metal to metal contact between connectors. The grease is only for sealing out contaminants/water so the connection doesn't degrade as fast over time. Not for improving a poor connection. If the conductive grease you are using is actually a good conductor, I would be concerned about the grease 'flowing' between blade connectors and causing a short. Just my  :2cents:

I was/am very careful about using the product and used only a very slight amount on the female side of the connectors to reduce/eliminate the possibility of it flowing.

What I used is silver conductive grease. it says the following

"This silver grease provides antistatic conductivity and maximum thermal conductivity between sliding surfaces, while providing protection from moisture and corrosion. Typical applications include lubrication of substation switches or circuit breakers, heat dissipation from transformers, or static grounding on seals or O-rings. Excellent moister resistance, chemical resistance, thermal conductivity, lubrication properties and protection from oxication."

As it stands right now, I think I am good as I have a new connector on the engine side with cleaned or new terminals and I redid the steering column harness with weatherpack.
Current Mopar
70 Challenger RT 440-6 EFI, 73 Cuda 416-6 EFI
05 Hemi Durango, 01 Ram 4x4, 14 Ram 2500 4X4, 10 PCP Challenger 6 spd RT, 01 Viper GTS ACR, 52 B3B w/330 Desoto Hemi, 70 Hemi RR (under const)
Past Mopars
9 x Challengers. AAR Cuda, 4 RR, 2 GTX, 4 Chargers, etc... (too many to list)

Offline marc70challenger

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Re: 70 Challenger RT - EFI 6 Pack Conversion
« Reply #252 on: December 31, 2016 - 09:25:39 PM »
I have that T shirt many times over which is why the seat comes out now.... LOL



 :2thumbs:
1970 Challenger 340 Performance Package
1965 Barracuda - "The Pumpkin"  http://www.cuda-challenger.com/cc/index.php?topic=116471.0

Offline 70chall440

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Re: 70 Challenger RT - EFI 6 Pack Conversion
« Reply #253 on: December 31, 2016 - 11:16:31 PM »
just got it put all back together, unfortunately it is now snowing so testing and tuning will be awhile.
Current Mopar
70 Challenger RT 440-6 EFI, 73 Cuda 416-6 EFI
05 Hemi Durango, 01 Ram 4x4, 14 Ram 2500 4X4, 10 PCP Challenger 6 spd RT, 01 Viper GTS ACR, 52 B3B w/330 Desoto Hemi, 70 Hemi RR (under const)
Past Mopars
9 x Challengers. AAR Cuda, 4 RR, 2 GTX, 4 Chargers, etc... (too many to list)

Offline dodj

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Re: 70 Challenger RT - EFI 6 Pack Conversion
« Reply #254 on: January 01, 2017 - 07:56:48 AM »
No snow tires?
Scott
1973 Challenger  440 4 spd 
2007.5 3500 6.7 Cummins Diesel, Anarchy tuned.
Good friends don't let friends do stupid things. ........alone.