5.3 In 69 El Camino ECM Location - Chevelle Tech
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post #1 of 23 (permalink) Old Feb 22nd, 19, 6:48 PM Thread Starter
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Pugsy
 
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5.3 In 69 El Camino ECM Location

Just curious where guys are mounting the computer when they do their swaps.


Any pics would be appreciated.
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post #2 of 23 (permalink) Old Feb 22nd, 19, 8:38 PM
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Don
 
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Re: 5.3 In 69 El Camino ECM Location

I'm pretty sure I'm mounting my computer on the wheelhouse under the fender and the fuse box right behind the battery.
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post #3 of 23 (permalink) Old Feb 22nd, 19, 9:38 PM Thread Starter
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Re: 5.3 In 69 El Camino ECM Location

Thanks.


Ya, passenger side behind the battery makes sense.
My car is in storage presently, so I can't even take a look under the hood. Trying to get everything ready for the spring so I can install it as quickly as possible.
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post #4 of 23 (permalink) Old Feb 22nd, 19, 9:50 PM
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Re: 5.3 In 69 El Camino ECM Location

I have my original 5.3 liter "896" PCM from the 1999 donor truck installed above the glove box but beneath the dash cover. A "411" PCM from a few years later is the same physical size and will fit in the same location - just has a little more memory and logs data faster. The Dirty Dingo people sell a bracket for these PCM boxes that gives you a hole in each corner of the bracket for mounting these modules.

Works for me.

Rick
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1970 El Camino under Reconstruction - 5.3L LS VORTEC Engine and 4L60E Transmission
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post #5 of 23 (permalink) Old Feb 23rd, 19, 12:05 AM
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Re: 5.3 In 69 El Camino ECM Location

Behind the drivers side headlights above the wheel well on my 67
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Tighten it till it strips and back it off a quarter turn.
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post #6 of 23 (permalink) Old Feb 23rd, 19, 5:36 AM
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Re: 5.3 In 69 El Camino ECM Location

I think its best to mount any extras on the passenger side to off set the additional weight of the drivers side from the steering gear, brakes, etc.. The Corvette mounts the engine slightly to the passenger side because of this..
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post #7 of 23 (permalink) Old Feb 23rd, 19, 6:35 AM
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Re: 5.3 In 69 El Camino ECM Location

Here, firewall driver side, seemed like a good idea when the fenders were off - and it fits and is well hidden - but, if I have to remove it ot work on the wiring, it's going to get interesting. I'll probably have to remove the fender.


Les


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65 El Camino (LS2 Project)
83 El Camino (DD)
04 Corvette Convertible
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post #8 of 23 (permalink) Old Feb 23rd, 19, 6:43 AM
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I have seen a guy around here that builds first gen Camaro's. He cuts the passanger toe board out and drops it. Making a compartment for it. Then puts brackets on the original toe board to bolt it back in place. When the carpet is installed you have no clue where it is. Its not hard to pull up the corner of the carpet, its out of the way, and protected from the elements. Figured I would share. Good luck LS guys.👍
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post #9 of 23 (permalink) Old Feb 23rd, 19, 6:44 AM Thread Starter
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Re: 5.3 In 69 El Camino ECM Location

Thanks Guys.

Passenger side it is. I may build a box to cover the ugly thing.
Not too worried at this point. I won't frame off the car for another 5 - 10 years.
I just need it to cruise nicely until that time, but it's nice if it's not too ugly til then.
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post #10 of 23 (permalink) Old Feb 23rd, 19, 6:48 AM Thread Starter
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Re: 5.3 In 69 El Camino ECM Location

I'm running the stock plastic clutch fan for now.
Anyone know if there is enough room between the block and rad to do so?

If someone could whip out a tape measure and measure between rad and engine block, it would be appreciated.

From the block to the tip of my fan is just under 11".
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post #11 of 23 (permalink) Old Feb 23rd, 19, 6:49 AM Thread Starter
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Re: 5.3 In 69 El Camino ECM Location

Quote:
Originally Posted by X-77keith View Post
I have seen a guy around here that builds first gen Camaro's. He cuts the passanger toe board out and drops it. Making a compartment for it. Then puts brackets on the original toe board to bolt it back in place. When the carpet is installed you have no clue where it is. Its not hard to pull up the corner of the carpet, its out of the way, and protected from the elements. Figured I would share. Good luck LS guys.👍

This is something i will do at frame off time for sure.
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post #12 of 23 (permalink) Old Feb 23rd, 19, 6:52 AM Thread Starter
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Re: 5.3 In 69 El Camino ECM Location

Quote:
Originally Posted by Skylarkul View Post
Here, firewall driver side, seemed like a good idea when the fenders were off - and it fits and is well hidden - but, if I have to remove it ot work on the wiring, it's going to get interesting. I'll probably have to remove the fender.


Thanks.


That looks tight for sure. How about the booster? Can you get in to tighten the bolts? I know I had a heck of a time even without something in the way.
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post #13 of 23 (permalink) Old Feb 23rd, 19, 11:07 AM
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Re: 5.3 In 69 El Camino ECM Location

Not much choice in my case... The silver mounting on the right is for the fuse panel from the 14 Camaro and the ECM mounts vertically on the radiator side.
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Here's a link to my 2014 Camaro SS donor to 70 Malibu restomod project:

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post #14 of 23 (permalink) Old Feb 23rd, 19, 1:28 PM Thread Starter
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Re: 5.3 In 69 El Camino ECM Location

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Originally Posted by pcguy View Post
Not much choice in my case... The silver mounting on the right is for the fuse panel from the 14 Camaro and the ECM mounts vertically on the radiator side.

Thanks.
Just checked out your build thread. Sweet.


I have the same exhaust manifolds. Do you think they would fit my chassis? I know you did some mods, just picking your brain.
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post #15 of 23 (permalink) Old Feb 23rd, 19, 1:48 PM
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Re: 5.3 In 69 El Camino ECM Location

Quote:
Originally Posted by 123pugsy View Post
Thanks.
Just checked out your build thread. Sweet.


I have the same exhaust manifolds. Do you think they would fit my chassis? I know you did some mods, just picking your brain.

The engine in the project is an L99 and everything is stock. From all my measurements and readings on this stuff, the width between the rails/frame at the motor mounts/horns is pretty standard on mid to full sized Chevy's of most eras. Can't imagine that 5.3 won't fit in your Elky with the stock exhaust manifolds. Now my long time ago Vega project was not quite the same. LOL



Nick
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Here's a link to my 2014 Camaro SS donor to 70 Malibu restomod project:

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