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My 440 EFI-Coil on Plug/LS PCM ignition-UPDATED PINOUTS #1376544
01/26/13 07:53 PM
01/26/13 07:53 PM
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Central Valley, CA.
Quicksilver440 Offline OP
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I'm had lots of questions and PM's on a project I've been working on, so I thought I'd write up whats done so far. My goal is to have it done in time to drive to Spring Fling in a few months.

So...my goal is to take a 98-2002 411 LS1 PCM from an LS Truck/F-body/etc and adapt it to run my 440 in my Challenger. This will give me a fully adjustable Coil-on-plug ignition and EFI system that actually matches or exceeds the abilities of most aftermarket EFI systems. Many aftermarket systems don't actually incorporate/control ignition systems which is a definite negative when it comes to my future turbo plans.

This project has taken me awhile mostly due to recently buying a house (8 month long short sale)and not wanting my car apart during the move...and the recent birth of my little boy Ian (Child #5!!).

I'm going to break this into several posts to make it easier and I can add more as I make progress (I hit a wrong button earlier and had to type it all over again.... )

Last edited by Quicksilver440; 03/08/13 05:30 AM.
Re: My 440 EFI- Coil on Plug & LS PCM ignition project [Re: Quicksilver440] #1376545
01/26/13 08:14 PM
01/26/13 08:14 PM
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Quicksilver440 Offline OP
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The main issues to tackle in this project (and the question I am most often asked)....is how is the PCM going to get a Crank Position and Cam Position Signal it can recognize?

The LS1 PCM is a challenge in that it uses a 24X Crank reluctor that is mounted on the back of the crankshaft and has a very unique crank signal.

7562560-24xcrank.jpg (672 downloads)
Re: My 440 EFI- Coil on Plug & LS PCM ignition project [Re: Quicksilver440] #1376546
01/26/13 08:16 PM
01/26/13 08:16 PM
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Quicksilver440 Offline OP
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Here's a closeup of the unique tooth pattern:

Last edited by Quicksilver440; 01/26/13 08:17 PM.
Re: My 440 EFI- Coil on Plug & LS PCM ignition project [Re: Quicksilver440] #1376547
01/26/13 08:41 PM
01/26/13 08:41 PM
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Quicksilver440 Offline OP
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So...I came up with a few different solutions to this, one being to mount a stock reluctor to my crank pulley and use an external pickup.

Another being to take a 24X reluctor from a BB Chevy and mount it on the crank snout behind the timing cover and install a sensor bung in my cover. This can concept certainly can be done and would be clean looking being that it would be factory style....but I chose to go with the easier external reluctor for now.

So, I took a stock $22 reluctor and removed just enough material to make a snug slip fit on my stock tapered crank pulley. The key here is alignment and indexing. I wanted it to sit behind the pulley, but in front of the balancer. Also I had set the motor at TDC #1 and marked the pulley to line up with the sensor location (using AndyF's bracket) before I removed it originally. Then, I just tacked the reluctor in place once I had alignment and indexing correct.

7562595-reducedpic.jpg (1511 downloads)
Last edited by Quicksilver440; 01/26/13 08:44 PM.
Re: My 440 EFI- Coil on Plug & LS PCM ignition project [Re: Quicksilver440] #1376548
01/26/13 08:46 PM
01/26/13 08:46 PM
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Central Valley, CA.
Quicksilver440 Offline OP
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Here's another:

7562604-reduced2.jpg (1351 downloads)
Re: My 440 EFI- Coil on Plug & LS PCM ignition project [Re: Quicksilver440] #1376549
01/26/13 08:52 PM
01/26/13 08:52 PM
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Quicksilver440 Offline OP
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Then I installed it all with AndyF's crank trigger bracket. It's possible you may need the adjustment in the bracket later after you get it running. At a minimum, It's regular practice on LS1's to do a "Crank Relearn" once the reluctors been touched, new rebuild, etc.

Here's it is installed:

Re: My 440 EFI- Coil on Plug & LS PCM ignition project [Re: Quicksilver440] #1376550
01/26/13 08:55 PM
01/26/13 08:55 PM
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Quicksilver440 Offline OP
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Next issue is getting a cam signal. The Vortec v8 and V6 pickups use a 1X reluctor in their distributors, so I just went to the junkyard and pulled a donor distributor for $30.

Last edited by Quicksilver440; 01/26/13 09:01 PM.
Re: My 440 EFI- Coil on Plug & LS PCM ignition project [Re: Quicksilver440] #1376551
01/26/13 09:03 PM
01/26/13 09:03 PM
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Quicksilver440 Offline OP
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Next, I just heated the tip of the shaft up with a propane torch (it was attached with some kind of epoxy) and gently pried it off. and unscrewed the sensor.

Last edited by Quicksilver440; 01/26/13 09:09 PM.
Re: My 440 EFI- Coil on Plug & LS PCM ignition project [Re: Quicksilver440] #1376552
01/26/13 09:15 PM
01/26/13 09:15 PM
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Central Valley, CA.
Quicksilver440 Offline OP
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Next I needed to find somewhere to mount the reluctor and sensor, so I found a gutted/blemished 440source billet distributor on their website in the clearance section for $25.

Re: My 440 EFI- Coil on Plug & LS PCM ignition project [Re: Quicksilver440] #1376553
01/26/13 09:23 PM
01/26/13 09:23 PM
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Quicksilver440 Offline OP
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Then I notched the side of the housing to fit and mount the sensor. I still need to make a cap for it somehow so it doesn't look goofy with no wires on it (since it will be coil-on-plug). Also...I need to take another pic of it all bolted together since I can't find one on my computer.

Last edited by Quicksilver440; 01/26/13 09:24 PM.
Re: My 440 EFI- Coil on Plug & LS PCM ignition project [Re: Quicksilver440] #1376554
01/26/13 09:26 PM
01/26/13 09:26 PM
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Quicksilver440 Offline OP
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Baby is screaming...so I'll have finish typing this one handed in a little while...lol.

Re: My 440 EFI- Coil on Plug & LS PCM ignition project [Re: Quicksilver440] #1376555
01/26/13 10:12 PM
01/26/13 10:12 PM
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Quicksilver440 Offline OP
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I ended up going with a Edelbrock 440 EFI intake once I realized it will fit under the bulge hood of my Challenger with the throttle body. That really excited me as it was not possible to fit a carb on a Victor intake with an air cleaner under my hood.

7562714-edl-29545_w.jpg (723 downloads)
Last edited by Quicksilver440; 01/26/13 10:12 PM.
Re: My 440 EFI- Coil on Plug & LS PCM ignition project [Re: Quicksilver440] #1376556
01/26/13 10:20 PM
01/26/13 10:20 PM
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Nebraska
72Swinger Offline
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Awesome!


Mopar to the bone!!!
Re: My 440 EFI- Coil on Plug & LS PCM ignition project [Re: Quicksilver440] #1376557
01/26/13 10:23 PM
01/26/13 10:23 PM
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Quicksilver440 Offline OP
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I ended up going with a Accel 1350 cfm throttle body since you can't really over throttle body a motor with EFI. Plus, the Accel throttle body was was only $338 on Amazon and was much thinner than a Holley Carb and even allowed my drop base aircleaner to fit. Plus, the sensor plugins will fit my LS harness as they are GM style IAC and TPS sensors.


Last edited by Quicksilver440; 01/26/13 10:39 PM.
Re: My 440 EFI- Coil on Plug & LS PCM ignition project [Re: Quicksilver440] #1376558
01/26/13 10:32 PM
01/26/13 10:32 PM
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Quicksilver440 Offline OP
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Next...I needed bigger than stock injectors for my HP level....so, after researching them some I found an abundance of 42lb injectors were available for cheap. The stock LS7 injectors are 42 lbs and people change them out when they do mods...so I picked my set up for $78 on ebay. Only drawbacks is they are shorter than standard injectors and have a different connector, so you have to either put FAST injector spacers on them (I bought mine brand new for $25 on ebay)....or modify the edelbrock injector brackets...I took the easy way out and bought the spacers as my brother has used them on 800+ hp engines with no issues. Also, I had to change the connectors out on my harness to the USCAR style connector.

Last edited by Quicksilver440; 01/26/13 10:35 PM.
Re: My 440 EFI- Coil on Plug & LS PCM ignition project [Re: Quicksilver440] #1376559
01/26/13 10:38 PM
01/26/13 10:38 PM
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5th and plum
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redmist Offline
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Watching Intently, I am currently building a MS3X System based on LS2 coils running in sequential, and also full sequential fuel. running off the Edelbrock pro Flo XT Manifold.

Keep the tech coming!

Re: My 440 EFI- Coil on Plug & LS PCM ignition project [Re: Quicksilver440] #1376560
01/26/13 10:42 PM
01/26/13 10:42 PM
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I like where this thread is going.

I pondered several of the same ideas a few years ago. I ended up selling my RB stuff and getting a 3g hemi. In retrospect, the downtime was never worth it but the car will have all the technology I could ever want with the hemi.

Keep on innovating, it looks good.


My Build thread: Let the hemi swap begin!

1968 wanna be pro touring whatchamacallit with some fancy stuff and a new roof skin.
Re: My 440 EFI- Coil on Plug & LS PCM ignition project [Re: Quicksilver440] #1376561
01/26/13 10:47 PM
01/26/13 10:47 PM
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Central Valley, CA.
Quicksilver440 Offline OP
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Next....I needed coils. All the LS style coils are decent. But after researching them....I found that the LS Truck coils (without the heatsink) are the ones being used on the big HP turbo cars (1200-1500 hp+). Also, the MSD ones are cool looking but are no better than the stock coils and are known to fail. They are the ones in the bottom left of this pic (but all are decent). Also...the Coils with harness were only $50 on ebay!:

Last edited by Quicksilver440; 01/26/13 10:55 PM.
Re: My 440 EFI- Coil on Plug & LS PCM ignition project [Re: redmist] #1376562
01/26/13 10:53 PM
01/26/13 10:53 PM
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Central Valley, CA.
Quicksilver440 Offline OP
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Quote:

Watching Intently, I am currently building a MS3X System based on LS2 coils running in sequential, and also full sequential fuel. running off the Edelbrock pro Flo XT Manifold.

Keep the tech coming!




Good stuff...I almost went with that intake too, but decided to stick with the Victor. That Pro flow is one cool looking intake!

7562769-E35453.jpg (569 downloads)
Re: My 440 EFI- Coil on Plug & LS PCM ignition project [Re: Quicksilver440] #1376563
01/26/13 10:57 PM
01/26/13 10:57 PM
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Central Valley, CA.
Quicksilver440 Offline OP
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Alright...I'll type more later as my 6 year old wants me to play a game with him and I gotta get some dinner.

Thats why this conversion took me so long to finish too..lol.

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