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Old 09-10-2017, 11:54 PM   #201
1971_c10
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Re: C10CJ: A Pro-touring '71 Stepside on a No Limit Pro-C10 Chassis

Also got the ECU engine harness completed and installed. I re-routed the wiring and came up with my own branch scheme. Got it all taped up then all wrapped up in Classic Braid from Painless Performance. That stuff looks really good. The only drawback is the kit I ordered (chassis pack) doesn't include nearly enough self vulcanizing tape (used to wrap the joints in the branches) but I guess they don't count on you wrapping an engine harness and a vehicle harness.

Here's the harness after re-routing, prior to getting wrapped. For the record, I officially hate the universal harness after going through this process. Where I have the ECU I have almost 4 ft of excess harness to contend with, yet I'm still super tight on one branch due to the lengths being already terminated. If I had this to do over again I'd get an unterminated harness, but I went ahead and got the harness with the ECU. Probably works for most people and makes their life easier, but for guys like me it drove me up the wall. Oh well. It's done. It's installed for now. It may get yanked in the future.
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Little closer shot showing all the branches. For reference, I really only need about 1' of trunk vs the 5'+ shown above.
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Here's that giant grommet again, this time on the harness. Nope I didn't cut the grommet and the connectors are all larger than the 1" center hole and it doesn't stretch enough to clear the connectors even after 10+ min in boiling water. So yep, I wound up removing all the wires from each of the ECU connectors. I of course have them all in a spreadsheet by pin, wire color and function so it didn't bother me, but I still only did one connector at a time.
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Here's the harness all wrapped up. Way too long and I even have some wires in a loop they were so long. Live and learn.
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A close up of a couple branches.
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Build Thread for my '71 Pro-Touring: http://67-72chevytrucks.com/vboard/s...d.php?t=722029
My C10 has it's own facebook page! www.facebook.com/c10cj - it is a public page so no facebook account required to browse through.
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Old 09-11-2017, 12:09 AM   #202
1971_c10
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Re: C10CJ: A Pro-touring '71 Stepside on a No Limit Pro-C10 Chassis

This weekend after I got the engine harness installed I started on the vehicle integration. I'm running a Holley Dominator ECU, so it's got tons of inputs and outputs. It has a dedicated set (J2) for just that and then if you aren't running DBW or an e-Trans (like a 4l60e) then J3 and J4 become wide open for more inputs and outputs. J1 is now reserved for the engine. BTW, J1 and J2 have 2 connectors, so yes, that's 6 connectors on this beast of an ECU. And they all have at least 24 pins each. Fortunately I've only gotten in to around 20 extra pins as of right now. But add in wheel speed sensors for traction control and maybe some linear POTs on the suspension and there's a bunch more wires. This thing is setup for Turbos, NOS, water injection, flex fuels if you want, and more.

Just a bunch of extra long, ready to cut to length unterminated wires (they do have the ECU pin already crimped on), a couple blank connectors. That's more like how I like to roll.
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Just a spreadsheet and my mind. Hmm, what color wire should I make this function?
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Ok, a slight break from wiring. I needed to get my gauges to an installable point. Now, I had already designed this layout before, but I never made a proper panel until today. So here it is, all $16 of that 14 ga plate from Lowe's and some time. A bunch of time. Boy I wish I had a plasma cutter. But I don't. Shown here raw, which it will stay for the near term. I had planned to paint it, but this raw look with some of the sanding swirl from the DA still showing actually has me thinking it might stay raw. Well, a little clear would get shot on to help keep it from rusting since it's carbon steel.
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All electric gauges mean lots more wires to deal with. I've got some connectors to install that will make this look a lot more manageable.
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Build Thread for my '71 Pro-Touring: http://67-72chevytrucks.com/vboard/s...d.php?t=722029
My C10 has it's own facebook page! www.facebook.com/c10cj - it is a public page so no facebook account required to browse through.
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Old 09-11-2017, 02:06 PM   #203
Camaroguy
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Re: C10CJ: A Pro-touring '71 Stepside on a No Limit Pro-C10 Chassis

Very cool build and great attention to detail. I'm excited to hear it when you fire it.
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