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We are living in marvelous times.
https://j.hmjimg.com/2024/10/30/GTOV3-1019.jpg https://j.hmjimg.com/2024/10/30/GTOV3-1020.jpg https://j.hmjimg.com/2024/10/30/GTOV3-1021.jpg If I can only find the BOV in a box somewhere so I can confirm fitment. ::facepalm:: Andrew |
Pretty slick stuff right there.
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P O N T I A C
Pontiac baby blue too! Haha
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Very cool
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BOV fitment confirmed:
https://j.hmjimg.com/2024/11/02/GTOV3-1022.md.jpg https://j.hmjimg.com/2024/11/02/GTOV3-1023.md.jpg Andrew |
Here is the updates design. The BOV location was moved, the logo was moved, and there wall thickness on the little nipple by the compressor exit was increased (not visible).
https://j.hmjimg.com/2024/11/07/GTOV3-1024.png https://j.hmjimg.com/2024/11/07/GTOV3-1025.png https://j.hmjimg.com/2024/11/07/GTOV3-1026.png https://j.hmjimg.com/2024/11/07/GTOV3-1027.png https://j.hmjimg.com/2024/11/07/GTOV3-1028.png https://j.hmjimg.com/2024/11/07/GTOV3-1029.png Andrew |
Here is the second prototype printed in carbon reinforced PETG.
https://j.hmjimg.com/2024/11/15/GTOV3-1030.jpg https://j.hmjimg.com/2024/11/15/GTOV3-1031.jpg https://j.hmjimg.com/2024/11/15/GTOV3-1032.jpg https://j.hmjimg.com/2024/11/15/GTOV3-1033.jpg https://j.hmjimg.com/2024/11/15/GTOV3-1034.jpg I like the new BOV placement and the slightly repositioned logo. The next step is to have the final version printed in aluminum. Andrew |
This really is so amazing to see come together with 3D printing.
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I love seeing things taken to the next level and this car is definitely doing it.
Sent from my iPhone using Tapatalk |
While the intake pipe is being made, I had my friend Blake design me another little part. He then printed some prototypes on his home 3D printer.
https://j.hmjimg.com/2024/11/16/GTOV3-1035.jpg These are mounts for the fuel rails. They will be printed out of stainless steel. https://j.hmjimg.com/2024/11/16/GTOV3-1036.jpg Here is bracket that came with the intake manifold kit. https://j.hmjimg.com/2024/11/16/GTOV3-1037.jpg Andrew |
The 8HP90 that I picked up had a mystery converter in it. It didn't look stock and frankly I didn't trust it. So I called up Circle D and had a discussion about my requirements. Here is what they suggested:
https://j.hmjimg.com/2024/11/21/GTOV3-1038.jpg This is their hybrid 8HP90 converter. Externally it is the same size as the 8HP70 converter, which is 1/2" smaller in diameter than a stock 90 converter, but internally it is built to work with the 8HP90 transmission. Here you can also see the Domiworks bellhousing adapter. https://j.hmjimg.com/2024/11/21/GTOV3-1039.jpg and the Domiworks converter adapter. https://j.hmjimg.com/2024/11/21/GTOV3-1040.jpg Andrew |
I had a little care package delivered today. Here are the fuel rail brackets, printed in stainless steel.
https://j.hmjimg.com/2024/11/29/GTOV3-1041.jpg https://j.hmjimg.com/2024/11/29/GTOV3-1042.jpg Tomorrow I will drill and tap as needed and maybe run the sides over some emery cloth on a granite block. Andrew |
I used a bench-top drill press and a step drill to open up the holes on the front and on the bottom.
https://j.hmjimg.com/2024/12/02/GTOV3-1043.md.jpg https://j.hmjimg.com/2024/12/02/GTOV3-1044.md.jpg Here they are mounted to the intake and holding up the fuel rails. https://j.hmjimg.com/2024/12/02/GTOV3-1048.md.jpg https://j.hmjimg.com/2024/12/02/GTOV3-1047.md.jpg Andrew |
:thumbsup:
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That's really cool. Little things like that will be neat to point out to people at car shows etc.
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Andrew |
Here is the final raw, 3D printed aluminum charge pipe:
https://j.hmjimg.com/2024/12/06/GTOV3-1049.md.jpg https://j.hmjimg.com/2024/12/06/GTOV3-1050.md.jpg https://j.hmjimg.com/2024/12/06/GTOV3-1051.md.jpg https://j.hmjimg.com/2024/12/06/GTOV3-1052.md.jpg https://j.hmjimg.com/2024/12/06/GTOV3-1053.md.jpg Andrew |
I ran across some videos by Devin Vanderhoof. It seems that he too has discovered the Hardwire Electronics PDM products. In fact, he has become the biggest distributor in the US for Hardwire. As you may recall, I already have a PDM 25 under the dash, but after seeing the videos for the new PDM 28, I knew that's what I needed in the GTO. I will use the PDM 25 in the Cougar or the Suburban.
Here is the PDM 28 as it arrived. https://j.hmjimg.com/2024/12/07/GTOV3-1054.md.jpg The size of the PDM 28 is substantial. Here you can see it compared to the Holley Dominator ECU. They are roughly the same size. The reason for choosing the new PDM 28 is that it has two CAN busses. With the release of the Holly CAN documentation, the PDM 28 is fully compatible with Holley EFI. https://j.hmjimg.com/2024/12/07/GTOV3-1055.md.jpg Holley had a 3D model of the Dominator available for download. https://j.hmjimg.com/2024/12/07/GTOV3-1056.md.jpg An email to Hardwire provided the 3D model of the PDM 28. https://j.hmjimg.com/2024/12/07/GTOV3-1057.md.jpg I once again used my Shining 3D Einstar 3D scanner and generated a scan of the GTO dash and glove box area. https://youtube.com/shorts/mhHSHdmFs..._UB9Yk2dgtfszA The plan is to design a mounting system for the Dominator and the PDM in the area that used to be occupied by the glove box. Andrew |
This has to be one of my favorite builds on this site
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If anyone is in the process of wiring their car, please post questions about the Hardwire PDM 28. This thing will basically handle all of the vehicle functions, although I made a conscious decision to leave the fuse panel and the bulkhead connector in place. However, the only thing that it will handle is the front and rear lighting. All other systems are getting moved to the PDM. With the Holley Dominator and TurboLamik communicating over CAN, and now the PDM also on the CAN bus, some really trick things are going to be possible. Andrew |
Andrew, not going to lie, you got me considering the PDM 28 as i'm changing all wiring in my car. Want to have a discussion on the benefits to be had. I already have moved away from the bulkhead, so all wiring would be going through the PDM (lights/etc included).
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Keep in mind that unless you leave the PDM on all the time, circuits that would have been on the battery side of the fuse panel will be off. PDM28 draws about 150ma when on, even not doing anything.
Putting a 28 in my car and all of the "battery" items will stay on the OE fuse panel. Everything else will run through the PDM. That short list includes but is not limited to: 1. Headlight Feed 2. Tail/Park/Dome Feed 3. Hazard Feed 4. Radio 5. Trunk Release 6. Gauge Feed (bat) (Dakota Digital) Also worth noting, 28 circuits sounds like a lot but for a street car it really isn't. Especially if you want to keep circuits separate. |
Andrew, I'd be interested in knowing more about the PDM. Saw a segment on PowerNation TV that they're using one in their track Camaro, but it was more of an ad than anything.
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If the circuit protection is tripped, the PDM can be programmed to automatically attempt resets. All circuits can also be monitored in real time and also datalogged for troubleshooting purposes. Please ask specific questions and I am happy to answer them. Andrew |
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Happy New Year Everyone!
Andrew |
Having a 3D scanner and a competent designer on call has really improved the overall quality of this build. I also want to thank Brian Wolf from Send Cut Send for helping out with this particular project.
I started with a 3D scan of the glovebox area without the glovebox. We obtained models of the Dominator and the Hardwire PDM from Holley and Hardwire and they were used to mock-up a mounting solution. https://j.hmjimg.com/2025/01/13/GTOV3-1058.jpg I wanted the LEDs on the PDM to be easily visible and I wanted the connectors to also be easily accessible. The tandem stacked arrangement is what we came up with. https://j.hmjimg.com/2025/01/13/GTOV3-1059.jpg James created the DXF files with SolidWorks and I uploaded them to Send Cut Send. They not only did the laser cutting but also the bending. Today I finally got the package after a bit of a delay due to the weather. https://j.hmjimg.com/2025/01/13/GTOV3-1060.jpg I expected to have to do some fiddling around with the bracket to get it to fit, but it dropped right in. The 3 holes that hold the glove box door lined up perfectly, as did the two slots up at the top. https://j.hmjimg.com/2025/01/13/GTOV3-1061.jpg I couldn't be happier with this solution. Andrew |
Nice. We use send cut send for prototype parts at work.
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I am making slow progress. In the last installment I posted the bracket that will hold the Holley Dominator ECU and the Hardwire PDM. Today I got a care package from McMaster Carr with some hardware.
The Dominator case is not supposed to be grounded to the car chassis. It actually has plastic and rubber mounts that are already inserted into the case. However, to isolate it more, I used rubber nut threaded inserts. To fasten the auxiliary bracket to the main bracket I used U-nuts. https://j.hmjimg.com/2025/01/18/GTOV3-1062.jpg Here you can see how it all fits together. https://j.hmjimg.com/2025/01/18/GTOV3-1063.jpg Unfortunately, the holes in the PDM are too small for #10 screws, so I have to #8 screws and corresponding U-nuts. I used a temporary support for picture purposes. LOL https://j.hmjimg.com/2025/01/18/GTOV3-1064.jpg Andrew |
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