DodgeCharger.com Forum

Mopar Garage => Paint, Body & Trim => Topic started by: 69DodgeCharger on July 19, 2005, 06:28:06 PM

Title: Firewall Conversion A/C Car To Non A/C
Post by: 69DodgeCharger on July 19, 2005, 06:28:06 PM
Here is something that has my project pretty much stalled out. My car is an original A/C equipped car. Since I don't have any of the A/C components, interior or underhood I am wanting to convert it to a non A/C car. I do have a correct working heater box and heater controls from a parted 69. My body man is talking about grafting a portion of a firewall from a parted 68 into my 69. Getting him to actually get around and do could take months...or even longer. He works very slowly. Even money will not motivate him.

Has anybody else ever done this type of conversion? If so what did you do to get it done? Working heat and defrost is a must for me as I live in mid/northern Michigan. I am also wanting to have a factory appearance underhood. Originality and resale are not an issue here. Lets here your thoughts on this.
Title: Re: Firewall Conversion A/C Car To Non A/C
Post by: Charger_Fan on July 19, 2005, 06:58:26 PM
You may be able to make (or have someone make) some block-off plates to cover the holes.
This is a Dart that the owner eliminated the heater altogether, but the same principle would work. If it's done right, it wouldn't look too bad.
(http://onfinite.com/libraries/507891/409.jpg)
Title: Re: Firewall Conversion A/C Car To Non A/C
Post by: A383Wing on July 19, 2005, 07:56:52 PM
I went the other way on 1 of my cars....went from non-a/c to factory a/c......what a job cutting the firewall to fit...

Won't do it again...

Bryan 
Title: Re: Firewall Conversion A/C Car To Non A/C
Post by: Brock Samson on July 19, 2005, 08:06:36 PM
 that's an "interesting" place to put the coil..
Title: Re: Firewall Conversion A/C Car To Non A/C
Post by: PocketThunder on July 19, 2005, 08:29:08 PM
I have not done this but i gotta ask...... why wouldnt you want A/C for those HUMID summers in the midwest!!
Title: Re: Firewall Conversion A/C Car To Non A/C
Post by: BigBlockSam on July 19, 2005, 10:45:11 PM
that's a nice looking engine bay. Rene   :coolgleamA:
Title: Re: Firewall Conversion A/C Car To Non A/C
Post by: 69DodgeCharger on July 20, 2005, 07:52:18 AM
Pocket,

I can deal with the heat and humidity, just roll the windows down. But I can't deal with cold and "fogged" over windows. Driving season starts in April and can run til November up here, by then it's pretty chilly usually. Plus I can't handle the cost, hassle and cluttered underhood appearance of an A/C car. Apparently this is not done very often. I thought somebody else might have done this already?
Title: Re: Firewall Conversion A/C Car To Non A/C
Post by: Iceyone on July 27, 2005, 10:53:01 PM
I'd say cut some sheet metal to fit the holes, weld it, smooth the welds, use filler if needed, prep and paint it. Doesn't seem like that big of deal to me.
Title: Re: Firewall Conversion A/C Car To Non A/C
Post by: Drop Top on July 28, 2005, 06:59:28 AM
If you have the fire wall pieces es to do the job with. Then that would be the best looking way to go. It will take a bit of work but when done will look like a factory firewall. If you make plates for the holes it will cheapen the looks of the car. Thats just my opinion.
Title: Re: Firewall Conversion A/C Car To Non A/C
Post by: 69DodgeCharger on July 28, 2005, 08:02:44 AM
I have a complete firewall to work with....getting somebody with a lot more experience than me to graft it in will be the "issue" As far as the metal block off plates I have seen a number of cars with them and they look "cheap" under the hood, not to mention not having working heat and defrost capabilities....A must up here!
Title: Re: Firewall Conversion A/C Car To Non A/C
Post by: B Bodyman on July 30, 2005, 09:27:35 PM
I'm doing the same job for a customer at the moment,I'm using a '67 belvedere non a/c parts car for a donor,and the heater box from a '68 roadrunner.
Title: Re: Firewall Conversion A/C Car To Non A/C
Post by: B Bodyman on July 31, 2005, 02:16:02 PM
here's some pics,of what you need to cover up,first is the oem 68 charger with a/c firewall.
Title: Re: Firewall Conversion A/C Car To Non A/C
Post by: B Bodyman on July 31, 2005, 02:19:41 PM
any 66-70 B Body non a/c firewall has the same 6 stamping ridges,for strength,w/out all the holes,and can be easily cut out,and butt welded into the car,polish off the welds,a little everglass and prime.here's the donor panel,gotta' get the /6 outta' the way to make thing's easier.
Title: Re: Firewall Conversion A/C Car To Non A/C
Post by: 69DodgeCharger on August 02, 2005, 07:55:11 AM
B Bodyman,

Thanks for the pics. Where are you planning on making your cuts? My body guy wanted to "overlap" the patch. I like the buttweld plan better. Is there any difference in the mounting holes for the heater box?, or is it just a simple matter of filling the old ones and drilling some new ones. I, and probably a few other people would like to see some more pics of this job as it progresses. Surely there must be other people who would like to do the same...Thanks for the info!
Title: Re: Firewall Conversion A/C Car To Non A/C
Post by: Nacho-RT74 on August 02, 2005, 01:54:45 PM
I just would go with an overlap cover bolting it on same original holes...easier to got back to A/C system again if you want in a future. also cheaper.
Title: Re: Firewall Conversion A/C Car To Non A/C
Post by: B Bodyman on August 02, 2005, 10:00:49 PM
 ,I will butt weld a new section in,that 68 charger is actually member Firefighter 3931's car,I had planned to use that belvedere parts car in my yard,,but he dropped off a donor section,I'll have to measure up that donor piece,and make sure it was cut large enough,no worry about this car going back to a/c if you've seen the mill Ron has built for this car,and it's future plans don't have a/c in the cards. So,we want a permanent heater box only, I'll be working on that car this week,so,I'll keep a few pics for ya bud !
Title: Re: Firewall Conversion A/C Car To Non A/C
Post by: 69DodgeCharger on August 03, 2005, 07:36:03 AM
Thanks B,

Same story here, don't want A/C. Don't need it. This car will never be going back to it...at least not under my ownership! Looking forward to those pics when you get a chance.
Title: Re: Firewall Conversion A/C Car To Non A/C
Post by: B Bodyman on August 09, 2005, 01:35:46 PM
I haven't forgot about you 69,I've finally got all the media blasting done,somebody stored the donor panel in some kind of cosmoline,and it's a bear getting it off,but I'll post pics soon...
Title: Re: Firewall Conversion A/C Car To Non A/C
Post by: 69DodgeCharger on August 14, 2005, 02:23:41 PM
Thanks B,

I haven't had time to do anything with mine anyways, I just bought out a guys whole stash of cars and parts. That's been keeping me busy for the past week and half. But I am still looking forward to those pics!
Title: Re: Firewall Conversion A/C Car To Non A/C
Post by: rebby on August 15, 2005, 08:52:17 PM
Quote from: Iceyone on July 27, 2005, 10:53:01 PM
I'd say cut some sheet metal to fit the holes, weld it, smooth the welds, use filler if needed, prep and paint it. Doesn't seem like that big of deal to me.

If that is a look that is alright with you, it is pretty easy  ;)

http://charger.rebby.com/exterior.php?subpage=body&detail=june2005&item=3049
http://charger.rebby.com/exterior.php?subpage=body&detail=june2005&item=3048
http://charger.rebby.com/exterior.php?subpage=body&detail=july2005&item=3269
http://charger.rebby.com/exterior.php?subpage=body&detail=aug2005&item=3434
http://charger.rebby.com/exterior.php?subpage=body&detail=aug2005&item=3464

From my July 15th log entry:
Quote...We're going to smooth out the firewall too. I plan on using bulkhead connectors to pass through the firewall so this will clean things up quite a bit. We're doing this with a welded flush cover rather than cutting anything out and butt welding the metal so the option to return the firewall to stock will always be there. Before final welding, we'll seal things up so we don't get any moisture back there that could lead to rusting anytime in the future.

This is a work in progress. If you're interested in seeing how it turns out, keep an eye out here -> http://charger.rebby.com/exterior.php?subpage=body#current
Title: Re: Firewall Conversion A/C Car To Non A/C
Post by: B Bodyman on August 17, 2005, 07:21:17 PM
69er.,I had some time today to drag the donor car down from the compound to the shop,I removed the heater box and cut out a generous panel,,
Title: Re: Firewall Conversion A/C Car To Non A/C
Post by: B Bodyman on August 17, 2005, 07:30:58 PM
and a little quick grinding on the inner fender side,to get the fit right against the seams,it's basically in place,,I have it bolted temporariy,with the self tapping   bolts from the voltage regulator and ballast resistor,which holds it exactly where it needs to be,,,,I'll trim it a little more,around the hump and wiper motor area,then sandblast it,,and cut it in,and weld it,,everything lines up fine,one heater hose hole is already ok,I'll have to cut the inner one out. At this point a guy could just weld it into place and drill out 1 hole for the inner heater hose,then grind it all down and lay some everglass on the beads to hide it,,or he could spend the extra time and trace it out and butt weld it into place,,