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-   -   1979 LS3 Swap....it's begun (https://www.digitalcorvettes.com/forums/showthread.php?t=283297)

Richard454 07-22-2017 08:57 PM

Damn Ryan- really coming along NICE.

For some reason - I thought your car was an 82...and was the best looking 82 I had seen...so now it's the best looking 79!!!



After the paste and buffing wheel-I've had the best luck w/ Mother's wheel polish for the final- I used to be a fan of Simichrome- but Mothers wins every time!!!




An idea to finish the metal for your dash-

Hit it hit a belt sander- like 80grit- spray it w/ some primer and wet sand it (400-600) then shoot it with black paint- it'll look like a brushed finish.


https://farm5.staticflickr.com/4325/...ced48752_b.jpg

blueday 07-23-2017 07:30 PM

Quote:

Originally Posted by Richard454 (Post 3361305)
Damn Ryan- really coming along NICE.

For some reason - I thought your car was an 82...and was the best looking 82 I had seen...so now it's the best looking 79!!!



After the paste and buffing wheel-I've had the best luck w/ Mother's wheel polish for the final- I used to be a fan of Simichrome- but Mothers wins every time!!!




An idea to finish the metal for your dash-

Hit it hit a belt sander- like 80grit- spray it w/ some primer and wet sand it (400-600) then shoot it with black paint- it'll look like a brushed finish.


https://farm5.staticflickr.com/4325/...ced48752_b.jpg


Thanks Richard:D. ...yeah I swapped front end supports/brackets with an 81 years ago before paint. Glassed in some patch panels and new bumpers.

I may have to try the mothers when I run out of the others.

I like the dash with belt sander idea. I would've never thought of that. Nice, clean look. Makes you question if it came that way from the factory. Just what I like.

blueday 07-23-2017 07:43 PM

Looks like I'll be calling classic auto air again, again. Maybe this is normal operation? I noticed this during their calibration/function testing. The middle Defrost/floor vents (on the right side of video) do not close all the way when the controller is on the center /dash position. The opposite happens when controller is in defrost/floor position. I tried recalibrating the system a few times with the same results. This system is very simple and easy to setup and calibrate.


Here's the supply water valve in action. Valve changes position depending on how hot you set the heat temperature.


zimmej51 07-23-2017 11:16 PM

LS3 swap C3
 
Blueday, I'm very glad I stumbled onto your post about an LS3 into your C3! I'm smack in the middle of a very similar swap, I'm doing an LS3 into a 1981 with a 6 speed manual. The car is going to be a "resto-mod". I'm pretty new on this forum so I hope everyone bears with me until I get more comfortable with it! I have lots of pics, not sure if I should "hijack" your post with my info or start a new thread, I would gladly accept guidance from the forum. Also some tips about posting the pics would be appreciated. Looking forward to exchanging information and things we have learned!

blueday 07-24-2017 09:26 AM

Quote:

Originally Posted by zimmej51 (Post 3361393)
Blueday, I'm very glad I stumbled onto your post about an LS3 into your C3! I'm smack in the middle of a very similar swap, I'm doing an LS3 into a 1981 with a 6 speed manual. The car is going to be a "resto-mod". I'm pretty new on this forum so I hope everyone bears with me until I get more comfortable with it! I have lots of pics, not sure if I should "hijack" your post with my info or start a new thread, I would gladly accept guidance from the forum. Also some tips about posting the pics would be appreciated. Looking forward to exchanging information and things we have learned!

You're welcome to post here or PM me if you have a question on something, but go ahead and create a new thread and tell/show everyone what you're doing and so on. You'll probably get a lot more responses should you have any questions. And we like build threads!

I had a photobucket account but since they recently changed their policy I had to switch over to flicker for now. I had to go update all of my photos in this thread to the flicker account. Hopefully they don't decide to dramatically change their policy. Once pictures are uploaded, most sites have a share option with a link that has img tags on either end. Paste that into your post and it should show up.

Ryan

Patro46 07-24-2017 07:50 PM

I was looking at the angle the refrigeration lines are leaving the firewall, and it looks like it might create an issue in clearance. If you LS swap it, you can see where the heads and manifold go, and it eats up more real estate than a smallblock did. I also relocated the receiver/drier. It looks packed, but if I ever decide to go with headers, they will fit, unlike the factory air.

Those headers. That chrome. Beautiful, functional eye candy!:partyon:

http://i1297.photobucket.com/albums/...ps32tujnyd.jpg

blueday 07-25-2017 12:20 PM

Quote:

Originally Posted by Patro46 (Post 3361497)
I was looking at the angle the refrigeration lines are leaving the firewall, and it looks like it might create an issue in clearance. If you LS swap it, you can see where the heads and manifold go, and it eats up more real estate than a smallblock did. I also relocated the receiver/drier. It looks packed, but if I ever decide to go with headers, they will fit, unlike the factory air.

Those headers. That chrome. Beautiful, functional eye candy!:partyon:

http://i1297.photobucket.com/albums/...ps32tujnyd.jpg

Patro,

I've seen pictures of some ls swaps with the factory ac equipment in the car (in the engine bay at least) and it looks really tight like you're saying. See my pics in next post of the heater hose/ac firewall connections (they look like they'll work, although they don't layout the same as yours do). I didn't ask for the corvette piping for the drier just because I'm not 100% sure where I'll mount it until I get the engine in and in the car. You have a lot going on in that area on your C3. I'm impressed you fit it all and looks clean. Thanks for the heads up, I'm trying to keep everything to the outside of the car as much as possible.

When you were calibrating the system, did you remember having any issues with the vents not fully closing off as shown in my video above?

Chrome? Those are stainless steel headers!:partyon:

blueday 07-25-2017 12:45 PM

The classic auto air corvette lines came in. I ended up having to make another set of brackets to offset the unit even further away from the firewall to let the corvette hard lines fit due to where they located the firewall fittings at. More time wasted that could've been addressed earlier on. As I suspected they do actually fit and look clean once installed. It's looking like this is turning into a classic auto air install thread and not an LS swap thread!:WTF

mock up yet again.
https://farm5.staticflickr.com/4330/...81224f39_z.jpg

and put back in the car with holes drilled. This doesn't look like the same hard line layout as Patro has, but I don't think I'll have any clearance issues with the new ls3.

https://farm5.staticflickr.com/4325/...9ee99c91_c.jpg
https://farm5.staticflickr.com/4327/...6eb93c1c_z.jpg
https://farm5.staticflickr.com/4295/...2330f17e_z.jpg

shown here is the clearance between the wiper arm area and the classic auto air evap unit.
https://farm5.staticflickr.com/4305/...2fd9ff86_z.jpg

And wouldn't you know it.....the c3 corvette condenser lines fit on another c3. The opening is a little different then what they show on the 76 C3 instructions but works. Much more professional looking compared to the "universal" kit I was sent.

https://farm5.staticflickr.com/4329/...e8f59297_z.jpg

blueday 07-29-2017 10:04 PM

Quote:

Originally Posted by blueday (Post 3361385)
Looks like I'll be calling classic auto air again, again. Maybe this is normal operation? I noticed this during their calibration/function testing. The middle Defrost/floor vents (on the right side of video) do not close all the way when the controller is on the center /dash position. The opposite happens when controller is in defrost/floor position. I tried recalibrating the system a few times with the same results. This system is very simple and easy to setup and calibrate.

https://www.youtube.com/watch?v=ct5tvzHEeRg&app=desktop

Here's the supply water valve in action. Valve changes position depending on how hot you set the heat temperature.

https://www.youtube.com/watch?v=6RDi5MTEZTA&app=desktop

I spoke with classic auto air about this issue. I was told the opposite vents should fully close in either position. They said if it isn't sealing it should be all 4 on that side because of how the diverter is and that it is odd the 2 center vents are the only ones not sealing. I was told the little bit of air that may be coming out shouldn't be enough to cause any issues once installed.......I'm still hoping this product is solid and won't have any issues but confidence is dwindling.

Patro46 08-02-2017 09:07 PM

I sure wish you weren't having issues with the Classic Air system. :thud:
For what it's worth, I only went with the cabin section of the HVAC system as I had already pretty much prepped the engine compartment with Sanden compressor and an upgraded condenser, as well as the PCM having control of the HVAC system, something I insisted upon, and this was an area I was on my own with, but fortunately, I love a good challenge, and have no regrets implementing this technology into the build.
All my refrigeration lines from the firewall out are "one-off", from the location of the receiver drier to the trinary switch location in the high side line. matter of fact, everything here deviates from anything Classic Air offers, as with just about everything on my car. It's so "one off" I feel for anyone behind me to have to dig in...:surprised
While your at it and already dug in with both feet, spend a little time researching the advantages of allowing your PCM to handle the AC control. You get a lot of control with stuff like throttle positioning, temp and pressure control and even voltage monitoring so if there is a charging problem, the PCM can sense the voltage drop and prevent rapid battery loss by preventing the AC from operating.
Most simply bypass these functions and pull the control wires from the PCM, probably only for fear of the unknown, but it's worth implementing into the build IMHO.
In closing, I tend to search for a silver lining to every dark cloud, and what I see here any way you shake with your time, bruised knuckles, ect. is a comfort solution you'd have NEVER had with a factory C3 air conditioner setup. Period.
You've already done pretty much what I have done, and the time you spent in the insulation department in your cabin will pay you back EVERY time you get behind the wheel on a hot summer day. No doubt about it.
I now am able to take my car out on days where it's too hot to drop the top and would have stayed home because of a sub par AC system. Sweating my butt off on a hot Oklahoma day in a C3 Corvette is now a thing of the past!:cheers:

DMB 75 08-03-2017 02:41 PM

Great thread there guy!

Part of the problem with both Classic and Vintage is that they have not come up with the correct setup for a 78-82 console. I have a 75 restomod project that I want to change over the interior dash to the later model version. The glove box change is the problem. I have not bought my air system yet until I see which company gets it right first.

BTW.....as far as using photobucket for pics.....I find that using the Manage Attachments feature already available here is much easier to use. You just load the pic from there. So simple a caveman could do it. Check it out.

Txs again for sharing. I have 2 projects that I was going to go old school 383 stroker SBC with but really tempted to go LS with one of them.

Good luck with your project

Dennis (Bman)

blueday 08-09-2017 06:21 PM

Quote:

Originally Posted by DMB 75 (Post 3363273)
Great thread there guy!

Part of the problem with both Classic and Vintage is that they have not come up with the correct setup for a 78-82 console. I have a 75 restomod project that I want to change over the interior dash to the later model version. The glove box change is the problem. I have not bought my air system yet until I see which company gets it right first.

BTW.....as far as using photobucket for pics.....I find that using the Manage Attachments feature already available here is much easier to use. You just load the pic from there. So simple a caveman could do it. Check it out.

Txs again for sharing. I have 2 projects that I was going to go old school 383 stroker SBC with but really tempted to go LS with one of them.

Good luck with your project

Dennis (Bman)

I agree, after going through most of this caa setup it doesn't seem like it'd take much to make some fittings/adapters for the factory defrost and center vents and the rest should be very similar to the other c3 setups. I would mind helping them out in the fitment area of things if they were to give me discount on the setup, but too late for that I guess.

:cheers:

blueday 08-09-2017 06:30 PM

I haven't had much progress lately with a 5 month old at home. Here's some pictures of the little bit I've had time to get to.




Bought a cover for the wiper area. Bought some factory looking plastic anchors (how whatever they're called) to hold it down. Has anyone had any luck putting a heat gun to these things to get the corners around the windshield to lay down? I took a heat gun to it and it lays down nice. Once it cools off it goes right back to the same position it was in. Same thing happens even if I apply the heat and put something on top to hold the corners down until they cool off.https://farm5.staticflickr.com/4360/...71fde92c_c.jpg[/url]

new under cowl gauges came in.
https://farm5.staticflickr.com/4386/...b42dc679_c.jpg[/url]

Oh yeah and the main course arrived. Still waiting on motor mounts and other stuff before I get moving.
LS3/525 with 4L70 trans.

https://farm5.staticflickr.com/4395/...620a1622_c.jpg

https://farm5.staticflickr.com/4379/...705a8bc6_c.jpg

https://farm5.staticflickr.com/4392/...a2a69c0a_c.jpg

The Torch 08-10-2017 02:11 AM

I'm really liking that main course. That is going to be a killer ride when you are finished

blueday 09-08-2017 02:57 PM

maybe my expectations are too high for some of these companies. This classic air controller that I paid an extra 100 for sure doesn't look great once lite up at night. Poorly designed faceplate and the aluminum behind it. You can clearly see where the cutouts are in the aluminum with the black face plate on it that is supposed to block the light. It's even more obvious with the green leds in there (which I can't run because they didn't put a divider for the lights inside there). I have to run white lights in the controller which won't match all of my other gauges. :rolleyes:

https://farm5.staticflickr.com/4406/...048ae5dc_c.jpg20170804_172057 by Ryan Cal, on Flickr

https://farm5.staticflickr.com/4378/...5e7095ea_c.jpg20170804_171850 by Ryan Cal, on Flickr

https://farm5.staticflickr.com/4368/...9d1278f0_c.jpg20170804_172223 by Ryan Cal, on Flickr



ok onto more fun with the LS swap. Here's my harness from Tilden motorsports. I went with them because they made a harness for an ls3 with an E67 ecm. Come to find out when I got my GMPP E67 ECM in the harness is for an E38 ECM. Back it goes to get made right. Notice the blade pins in the connectors don't match and I'm missing a whole connector to the ecm.

GMPP E67 ECM for the LS3/525:
https://farm5.staticflickr.com/4337/...f55d8d5d_c.jpg20170831_193644 by Ryan Cal, on Flickr

Tilden harness connections, the smaller goes to the TCM :
https://farm5.staticflickr.com/4331/...43ee1e5d_c.jpg20170831_193550 by Ryan Cal, on Flickr



and on a plus note my other toys came in from CIC.
https://farm5.staticflickr.com/4338/...63aed0f9_c.jpg20170831_191943 by Ryan Cal, on Flickr
https://farm5.staticflickr.com/4336/...4fe90ec3_c.jpg20170902_193133 by Ryan Cal, on Flickr

Here's my android double din 7" wide screen and unfinished new gauge layout for my center console. I'll be moving the fuel between the speed & tach area soon. I can download an app on the head unit to run digital gauges if I even need to read anything else specifically. Cool, but not sure how much I'lll actually use that app.

https://farm5.staticflickr.com/4356/...4c741efa_c.jpg20170829_193707 by Ryan Cal, on Flickr


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